{"id":65293,"date":"2024-01-04T16:54:52","date_gmt":"2024-01-04T21:54:52","guid":{"rendered":"https:\/\/rheolution.com\/?p=65293"},"modified":"2026-08-13T12:25:19","modified_gmt":"2026-08-13T16:25:19","slug":"medicao-da-absorvancia-cinetica-e-velocidade-das-reacoes-quimicas","status":"publish","type":"post","link":"https:\/\/rheolution.com\/pt\/notas-de-aplicacao\/medicao-da-absorvancia-cinetica-e-velocidade-das-reacoes-quimicas\/","title":{"rendered":"COMPREENDENDO A ABSORV\u00c2NCIA: MEDI\u00c7\u00c3O DAS VELOCIDADES DE REA\u00c7\u00c3O NA QU\u00cdMICA"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"65293\" class=\"elementor elementor-65293 elementor-36525\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-70169fe e-flex e-con-boxed e-con e-parent\" data-id=\"70169fe\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0778f1c elementor-widget elementor-widget-heading\" data-id=\"0778f1c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\">Nota de Aplica\u00e7\u00e3o | ABSOR.B\u2122<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6607862 elementor-widget elementor-widget-heading\" data-id=\"6607862\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">MEDI\u00c7\u00c3O DA VELOCIDADE DE REA\u00c7\u00d5ES QU\u00cdMICAS POR MEIO DA ABSORB\u00c2NCIA<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5ef318 elementor-widget elementor-widget-text-editor\" data-id=\"a5ef318\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"raw_components--panel--3IcXg inspect_panels--inspectionPanel--3Wboz\"><div class=\"inspect_panels--copyableRow--2_PiZ inspect_panels--highlightRow--21P9S\"><div class=\"inspect_panels--propertyRowContent--7Y-mu inspect_panels--copyableRow--2_PiZ inspect_panels--highlightRow--21P9S\"><div class=\"inspect_panels--contentProperty--2Z1QI text--fontPos11--RSei3 text--_fontBase--YWDo0 ellipsis--ellipsisAfter8Lines--2rn32 ellipsis--_ellipsisAfterNLines--26JkZ\"><p>por <a href=\"https:\/\/www.linkedin.com\/in\/dimitria-camas\u00e3o-049002a2\/\" target=\"_blank\" rel=\"noopener\">Dimitria Camas\u00e3o<\/a> e CEP <a href=\"https:\/\/www.linkedin.com\/in\/no%C3%A9mie-deloire-954b7b174\/\" target=\"_blank\" rel=\"noopener\">Noemie Deloire<\/a>,<\/p><p><span style=\"font-weight: 400\">Cientistas de Aplica\u00e7\u00e3o<\/span><span style=\"font-weight: 400\">,<\/span> <a href=\"https:\/\/www.linkedin.com\/company\/1168758\" target=\"_blank\" rel=\"noopener\">Rheolution Inc.<\/a><\/p><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-848a888 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"848a888\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Resumo<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f95975b elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"f95975b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>As rea\u00e7\u00f5es qu\u00edmicas nas quais participam reagentes ou produtos coloridos podem ser analisadas por meio das varia\u00e7\u00f5es em sua capacidade de absor\u00e7\u00e3o ao longo do tempo em comprimentos de onda espec\u00edficos.<\/li><li><a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">O ABSOR.B\u2122<\/a> mediu com precis\u00e3o a cin\u00e9tica de absorv\u00e2ncia de uma mistura composta por corante aliment\u00edcio azul e alvejante.<\/li><li>A equa\u00e7\u00e3o de velocidade da rea\u00e7\u00e3o qu\u00edmica entre o corante azul e a \u00e1gua sanit\u00e1ria foi determinada por meio da cin\u00e9tica de absorv\u00e2ncia.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cba8dea e-flex e-con-boxed e-con e-parent\" data-id=\"cba8dea\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-83c2ede elementor-widget elementor-widget-heading\" data-id=\"83c2ede\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">INTRODU\u00c7\u00c3O \u00c0 MEDI\u00c7\u00c3O DA ABSORV\u00c2NCIA NA AN\u00c1LISE DE REA\u00c7\u00d5ES QU\u00cdMICAS<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-67d4a45 elementor-widget elementor-widget-heading\" data-id=\"67d4a45\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Introdu\u00e7\u00e3o<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9a44079 elementor-widget elementor-widget-text-editor\" data-id=\"9a44079\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Rea\u00e7\u00f5es qu\u00edmicas nas quais um dos reagentes ou produtos \u00e9 colorido podem ser monitoradas por meio de medi\u00e7\u00f5es de absorv\u00e2ncia ao longo do tempo. Por exemplo, mol\u00e9culas de corante podem reagir com subst\u00e2ncias espec\u00edficas, alterando sua estrutura qu\u00edmica e, consequentemente, sua capacidade de absorver ou refletir a luz da mesma forma. Da mesma forma, a atividade das enzimas pode ser monitorada quando a rea\u00e7\u00e3o entre a enzima e o substrato resulta em um produto colorido. Nesses dois exemplos, a velocidade da rea\u00e7\u00e3o qu\u00edmica pode ser representada pelo desaparecimento dos reagentes ou pelo surgimento dos produtos, respectivamente.   <\/p><p>Essas medi\u00e7\u00f5es (absorv\u00e2ncia ao longo do tempo) fornecem informa\u00e7\u00f5es sobre a velocidade de rea\u00e7\u00e3o e a atividade dos reagentes. A velocidade de rea\u00e7\u00e3o (ou lei de velocidade) \u00e9 uma descri\u00e7\u00e3o matem\u00e1tica de como a velocidade de uma rea\u00e7\u00e3o qu\u00edmica depende da concentra\u00e7\u00e3o molar de seus reagentes. Determinar as leis de velocidade \u00e9 fundamental para aprofundar a compreens\u00e3o das rea\u00e7\u00f5es qu\u00edmicas, otimizar as condi\u00e7\u00f5es de rea\u00e7\u00e3o e garantir a produ\u00e7\u00e3o eficiente e controlada dos produtos desejados em diversos campos cient\u00edficos e industriais.  <\/p><p>Nesse contexto, o <a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">ABSOR.B\u2122<\/a> foi utilizado neste estudo para analisar a cin\u00e9tica da rea\u00e7\u00e3o entre um corante aliment\u00edcio (corante azul) e o hipoclorito de s\u00f3dio (alvejante). O \u00edon hipoclorito (ClO\u207b) \u00e9 um agente oxidante que remove um ou mais el\u00e9trons das mol\u00e9culas do corante, alterando sua estrutura qu\u00edmica, o que, por sua vez, faz com que ele n\u00e3o seja mais capaz de absorver luz na faixa do vis\u00edvel. A diminui\u00e7\u00e3o da absorv\u00e2ncia durante a rea\u00e7\u00e3o foi medida em duas concentra\u00e7\u00f5es diferentes de alvejante. Os dados obtidos foram ent\u00e3o utilizados para determinar a equa\u00e7\u00e3o qu\u00edmica da velocidade de rea\u00e7\u00e3o.   <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bd5dbdc elementor-widget elementor-widget-heading\" data-id=\"bd5dbdc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ABORDAGEM EXPERIMENTAL PARA A MEDI\u00c7\u00c3O DA ABSORV\u00c2NCIA EM QU\u00cdMICA\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-96c68e4 elementor-widget elementor-widget-heading\" data-id=\"96c68e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Materiais e M\u00e9todos<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b1683b1 elementor-widget elementor-widget-text-editor\" data-id=\"b1683b1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">O corante aliment\u00edcio (cor azul) foi misturado com hipoclorito de s\u00f3dio (alvejante, NaClO) em frascos de 10 mL em duas concentra\u00e7\u00f5es (0,134 M e 0,269 M de ClO). Os frascos foram imediatamente inseridos no <a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">ABSOR.B\u2122<\/a> <\/span> <span style=\"font-weight: 400\"> e os testes foram realizados \u00e0 temperatura ambiente, utilizando o <\/span><span style=\"font-weight: 400\">cartucho Emitt.635, o cartucho \u00f3ptico de emiss\u00e3o que emite luz no comprimento de onda de 635 nm (os componentes azuis apresentam seu pico de absorv\u00e2ncia pr\u00f3ximo a esse comprimento de onda)<\/span><span style=\"font-weight: 400\">. Foram coletados os valores de absorv\u00e2ncia ao longo do tempo para cada amostra (n = 3 para cada condi\u00e7\u00e3o). A lei de velocidade foi calculada a partir da cin\u00e9tica de absorv\u00e2ncia (1,2). <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27b5d0b elementor-widget elementor-widget-heading\" data-id=\"27b5d0b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">AN\u00c1LISE DAS VELOCIDADES DE REA\u00c7\u00c3O POR MEIO DE MEDI\u00c7\u00d5ES DE ABSORV\u00c2NCIA<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-70a54d0 elementor-widget elementor-widget-heading\" data-id=\"70a54d0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Resultados e Discuss\u00e3o<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b725f4d elementor-widget elementor-widget-heading\" data-id=\"b725f4d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Monitoramento experimental da rea\u00e7\u00e3o qu\u00edmica<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3a473e6 elementor-widget elementor-widget-text-editor\" data-id=\"3a473e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>A Figura 1<\/strong> apresenta os resultados para cada concentra\u00e7\u00e3o de hipoclorito de s\u00f3dio misturada com o corante azul em triplicata (n=3). Como esperado, a rea\u00e7\u00e3o ocorreu mais rapidamente na amostra com a maior concentra\u00e7\u00e3o de hipoclorito de s\u00f3dio, conforme demonstrado pela diminui\u00e7\u00e3o mais r\u00e1pida da absorv\u00e2ncia. Tamb\u00e9m \u00e9 poss\u00edvel observar a grande repetibilidade dos resultados entre as r\u00e9plicas para cada condi\u00e7\u00e3o. A variabilidade intraindividual inerente aos tecidos animais e o pequeno n\u00famero de amostras (n=3) refor\u00e7am a alta repetibilidade e sensibilidade dos resultados.   <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f2d812 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"1f2d812\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-style: normal;font-weight: bold;font-size: 16px;font-family: &apos;Red Hat Text&apos;, sans-serif\">Figura 1: Absorv\u00e2ncia <\/span>(Abs) do corante azul de grau aliment\u00edcio em fun\u00e7\u00e3o do tempo, quando misturado com hipoclorito de s\u00f3dio a 0,269 M (laranja) e 0,134 M (turquesa).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f10b94 elementor-widget elementor-widget-image\" data-id=\"3f10b94\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"768\" height=\"672\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?fit=768%2C672&amp;ssl=1\" class=\"attachment-medium_large size-medium_large wp-image-65294\" alt=\"Graph showing faster absorbance decrease with higher sodium hypochlorite concentrations and consistent repeatability across triplicates.\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?w=1149&amp;ssl=1 1149w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?resize=300%2C263&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?resize=1024%2C897&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?resize=768%2C672&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?resize=86%2C75&amp;ssl=1 86w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?resize=480%2C420&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, (max-width:768px) 100vw, 768px\" data-attachment-id=\"65294\" data-permalink=\"https:\/\/rheolution.com\/pt\/notas-de-aplicacao\/medicao-da-absorvancia-cinetica-e-velocidade-das-reacoes-quimicas\/attachment\/fig1-copy-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?fit=1149%2C1006&amp;ssl=1\" data-orig-size=\"1149,1006\" data-comments-opened=\"1\" data-image-title=\"faster absorbance\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?fit=1024%2C897&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-73f994f elementor-widget elementor-widget-heading\" data-id=\"73f994f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Modelagem te\u00f3rica da rea\u00e7\u00e3o qu\u00edmica<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-064b856 elementor-widget elementor-widget-text-editor\" data-id=\"064b856\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">Essa rea\u00e7\u00e3o qu\u00edmica com seus coeficientes estequiom\u00e9tricos (<\/span><i><span style=\"font-weight: 400\">m<\/span><\/i><span style=\"font-weight: 400\"> e <\/span><i><span style=\"font-weight: 400\">n<\/span><\/i><span style=\"font-weight: 400\">) pode ser representada da seguinte forma:<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16c7887 elementor-widget elementor-widget-image\" data-id=\"16c7887\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"369\" height=\"28\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_0.png?fit=369%2C28&amp;ssl=1\" class=\"attachment-large size-large wp-image-65295\" alt=\"m Blue dye + n hypochlorite = products\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_0.png?w=369&amp;ssl=1 369w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_0.png?resize=300%2C23&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_0.png?resize=150%2C11&amp;ssl=1 150w\" sizes=\"(max-width:767px) 369px, 369px\" data-attachment-id=\"65295\" data-permalink=\"https:\/\/rheolution.com\/pt\/notas-de-aplicacao\/medicao-da-absorvancia-cinetica-e-velocidade-das-reacoes-quimicas\/attachment\/chemical_reactions_absorb_eqt_0-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_0.png?fit=369%2C28&amp;ssl=1\" data-orig-size=\"369,28\" data-comments-opened=\"1\" data-image-title=\"m Blue dye\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_0.png?fit=369%2C28&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8fa1685 elementor-widget elementor-widget-text-editor\" data-id=\"8fa1685\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">A equa\u00e7\u00e3o de velocidade dessa rea\u00e7\u00e3o, em fun\u00e7\u00e3o da concentra\u00e7\u00e3o molar de seus reagentes, pode ser escrita da seguinte forma:<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1210ab8 elementor-widget elementor-widget-image\" data-id=\"1210ab8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"703\" height=\"35\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?fit=703%2C35&amp;ssl=1\" class=\"attachment-large size-large wp-image-65296\" alt=\"rate = k [blue dye]m[hypochlorite]n\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?w=703&amp;ssl=1 703w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?resize=300%2C15&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?resize=150%2C7&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?resize=480%2C24&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, 703px\" data-attachment-id=\"65296\" data-permalink=\"https:\/\/rheolution.com\/pt\/notas-de-aplicacao\/medicao-da-absorvancia-cinetica-e-velocidade-das-reacoes-quimicas\/attachment\/chemical_reactions_absorb_eqt_1-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?fit=703%2C35&amp;ssl=1\" data-orig-size=\"703,35\" data-comments-opened=\"1\" data-image-title=\"k [blue dye]\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?fit=703%2C35&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ca71eeb elementor-widget elementor-widget-text-editor\" data-id=\"ca71eeb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Onde <strong>k<\/strong> \u00e9 a constante de velocidade (espec\u00edfica para uma determinada rea\u00e7\u00e3o e temperatura), e <strong>m<\/strong> e <strong>n<\/strong> s\u00e3o expoentes que definem a ordem da rea\u00e7\u00e3o.<\/p><p>Nesse experimento, o hipoclorito de s\u00f3dio estava em grande excesso em rela\u00e7\u00e3o ao corante azul. Portanto, sua concentra\u00e7\u00e3o n\u00e3o sofreu altera\u00e7\u00f5es significativas durante essa rea\u00e7\u00e3o qu\u00edmica, podendo ser considerada aproximadamente constante. <\/p><p>Para determinar inicialmente o expoente <strong>m<\/strong> e, considerando que a concentra\u00e7\u00e3o de hipoclorito pode ser aproximada como uma constante neste experimento, a pseudo-constante de velocidade (k\u2019) pode ent\u00e3o ser determinada da seguinte forma:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-402c5c2 elementor-widget elementor-widget-image\" data-id=\"402c5c2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"703\" height=\"32\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?fit=703%2C32&amp;ssl=1\" class=\"attachment-large size-large wp-image-65297\" alt=\"k [hypochlorite]n\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?w=703&amp;ssl=1 703w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?resize=300%2C14&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?resize=150%2C7&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?resize=480%2C22&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, 703px\" data-attachment-id=\"65297\" data-permalink=\"https:\/\/rheolution.com\/pt\/notas-de-aplicacao\/medicao-da-absorvancia-cinetica-e-velocidade-das-reacoes-quimicas\/attachment\/chemical_reactions_absorb_eqt_2-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?fit=703%2C32&amp;ssl=1\" data-orig-size=\"703,32\" data-comments-opened=\"1\" data-image-title=\"hypochlorite\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?fit=703%2C32&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-64fb36b elementor-widget elementor-widget-text-editor\" data-id=\"64fb36b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">Portanto, a lei de velocidade pode ser reescrita da seguinte forma:<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-639d0da elementor-widget elementor-widget-image\" data-id=\"639d0da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"703\" height=\"32\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?fit=703%2C32&amp;ssl=1\" class=\"attachment-large size-large wp-image-65298\" alt=\"rate = k&apos; [blue dye]m\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?w=703&amp;ssl=1 703w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?resize=300%2C14&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?resize=150%2C7&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?resize=480%2C22&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, 703px\" data-attachment-id=\"65298\" data-permalink=\"https:\/\/rheolution.com\/pt\/notas-de-aplicacao\/medicao-da-absorvancia-cinetica-e-velocidade-das-reacoes-quimicas\/attachment\/chemical_reactions_absorb_eqt_3-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?fit=703%2C32&amp;ssl=1\" data-orig-size=\"703,32\" data-comments-opened=\"1\" data-image-title=\"blue dye\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?fit=703%2C32&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-566e319 elementor-widget elementor-widget-text-editor\" data-id=\"566e319\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">Ao tra\u00e7ar os gr\u00e1ficos de Abs em fun\u00e7\u00e3o do tempo, ln(Abs) em fun\u00e7\u00e3o do tempo e 1\/Abs em fun\u00e7\u00e3o do tempo, \u00e9 poss\u00edvel determinar a ordem de rea\u00e7\u00e3o do corante azul. Se: <\/span><\/p><p>  &#8211; A rela\u00e7\u00e3o entre Abs e o tempo \u00e9 linear: rea\u00e7\u00e3o de ordem zero (<strong>m<\/strong> = 0)<\/p><p>  &#8211; ln(Abs) em fun\u00e7\u00e3o do tempo \u00e9 linear: rea\u00e7\u00e3o de primeira ordem (<strong>m<\/strong> = 1)<\/p><p>  &#8211; 1\/Abs em fun\u00e7\u00e3o do tempo \u00e9 linear: rea\u00e7\u00e3o de segunda ordem (<strong>m<\/strong> = 2)<\/p><p><span style=\"font-style: normal;font-weight: bold;font-size: 16px;font-family: &apos;Red Hat Text&apos;, sans-serif\">Figura 2<\/span><span style=\"font-family: &apos;Red Hat Text&apos;, sans-serif;font-size: 16px;font-style: normal;font-weight: 400\"> mostra que o maior valor de R\u00b2 obtido foi para as curvas de ln(Abs) em fun\u00e7\u00e3o do tempo (R\u00b2 &gt; 0,99); portanto, trata-se de uma rea\u00e7\u00e3o de primeira ordem no que diz respeito ao corante azul (<\/span><span style=\"font-style: normal;font-weight: bold;font-size: 16px;font-family: &apos;Red Hat Text&apos;, sans-serif\"><i>m<\/i><\/span><span style=\"font-family: &apos;Red Hat Text&apos;, sans-serif;font-size: 16px;font-style: normal;font-weight: 400\">  = 1). Al\u00e9m disso, a pseudoconstante (k\u2019) \u00e9 igual a menos a inclina\u00e7\u00e3o da reta de regress\u00e3o linear. Com essas informa\u00e7\u00f5es, \u00e9 poss\u00edvel calcular a constante da lei de velocidade (  <\/span><span style=\"font-style: normal;font-weight: bold;font-size: 16px;font-family: &apos;Red Hat Text&apos;, sans-serif\">k<\/span><span style=\"font-family: &apos;Red Hat Text&apos;, sans-serif;font-size: 16px;font-style: normal;font-weight: 400\">), da seguinte forma:<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3217067 elementor-widget elementor-widget-image\" data-id=\"3217067\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"702\" height=\"67\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?fit=702%2C67&amp;ssl=1\" class=\"attachment-large size-large wp-image-65299\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?w=702&amp;ssl=1 702w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?resize=300%2C29&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?resize=150%2C14&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?resize=480%2C46&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, 702px\" data-attachment-id=\"65299\" data-permalink=\"https:\/\/rheolution.com\/pt\/notas-de-aplicacao\/medicao-da-absorvancia-cinetica-e-velocidade-das-reacoes-quimicas\/attachment\/chemical_reactions_absorb_eqt_4-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?fit=702%2C67&amp;ssl=1\" data-orig-size=\"702,67\" data-comments-opened=\"1\" data-image-title=\"Chemical\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?fit=702%2C67&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-39be0ae elementor-widget elementor-widget-text-editor\" data-id=\"39be0ae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">A constante de velocidade (<strong>k<\/strong>) para essa rea\u00e7\u00e3o \u00e9, portanto, 0,29 (M.s)\u207b\u00b9 e, utilizando a equa\u00e7\u00e3o 2, <strong>n<\/strong> tamb\u00e9m \u00e9 igual a 1. Portanto, a lei de velocidade para essa rea\u00e7\u00e3o qu\u00edmica pode ser escrita da seguinte forma: <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cbfa38b elementor-widget elementor-widget-image\" data-id=\"cbfa38b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"340\" height=\"43\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_5.png?fit=340%2C43&amp;ssl=1\" class=\"attachment-large size-large wp-image-65300\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_5.png?w=340&amp;ssl=1 340w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_5.png?resize=300%2C38&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_5.png?resize=150%2C19&amp;ssl=1 150w\" sizes=\"(max-width:767px) 340px, 340px\" data-attachment-id=\"65300\" data-permalink=\"https:\/\/rheolution.com\/pt\/notas-de-aplicacao\/medicao-da-absorvancia-cinetica-e-velocidade-das-reacoes-quimicas\/attachment\/chemical_reactions_absorb_eqt_5-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_5.png?fit=340%2C43&amp;ssl=1\" data-orig-size=\"340,43\" data-comments-opened=\"1\" data-image-title=\"Chemical_reactions\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_5.png?fit=340%2C43&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d68d8a elementor-widget elementor-widget-image\" data-id=\"0d68d8a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1264\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?fit=768%2C1264&amp;ssl=1\" class=\"attachment-medium_large size-medium_large wp-image-65301\" alt=\"Plots of Abs, ln Abs, and 1\/Abs over time for blue dye with sodium hypochlorite concentrations, including linear regressions.\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?w=1269&amp;ssl=1 1269w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=182%2C300&amp;ssl=1 182w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=622%2C1024&amp;ssl=1 622w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=768%2C1264&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=934%2C1536&amp;ssl=1 934w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=1245%2C2048&amp;ssl=1 1245w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=46%2C75&amp;ssl=1 46w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=480%2C790&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, (max-width:768px) 100vw, 768px\" data-attachment-id=\"65301\" data-permalink=\"https:\/\/rheolution.com\/pt\/notas-de-aplicacao\/medicao-da-absorvancia-cinetica-e-velocidade-das-reacoes-quimicas\/attachment\/fig2-2-2-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?fit=1269%2C2088&amp;ssl=1\" data-orig-size=\"1269,2088\" data-comments-opened=\"1\" data-image-title=\"Plots of Abs\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?fit=622%2C1024&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9cc9908 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"9cc9908\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-style: normal;font-weight: bold;font-size: 16px;font-family: &apos;Red Hat Text&apos;, sans-serif\">Figura 2: <\/span>Valores m\u00e9dios <span style=\"font-style: normal;font-weight: bold;font-size: 16px;font-family: &apos;Red Hat Text&apos;, sans-serif\">de absorv\u00e2ncia <\/span>(Abs), ln Abs e 1\/Abs em fun\u00e7\u00e3o do tempo para um corante azul de uso aliment\u00edcio com ambas as concentra\u00e7\u00f5es de hipoclorito de s\u00f3dio (n = 3), juntamente com suas respectivas regress\u00f5es lineares.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cff0e5a elementor-widget elementor-widget-heading\" data-id=\"cff0e5a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Conclus\u00f5es e Perspectivas<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc638ed elementor-widget elementor-widget-text-editor\" data-id=\"fc638ed\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\"><a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">ABSOR.B\u2122<\/a><\/span> foi utilizado com sucesso para medir as varia\u00e7\u00f5es de absorv\u00e2ncia ao longo do tempo a 635 nm durante a rea\u00e7\u00e3o entre um corante azul de grau aliment\u00edcio e alvejante em solu\u00e7\u00e3o. A lei de velocidade dessa rea\u00e7\u00e3o qu\u00edmica foi calculada a partir da cin\u00e9tica de absorv\u00e2ncia. <\/p><p>De modo geral, o <span style=\"font-weight: 400\"><a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">instrumento ABSOR.B\u2122<\/a><\/span> facilita:<\/p><ul><li>Coleta de medi\u00e7\u00f5es cont\u00ednuas de absorv\u00e2ncia em seu aplicativo para tablet, para facilitar a an\u00e1lise da cin\u00e9tica das rea\u00e7\u00f5es qu\u00edmicas.<\/li><li>Personaliza\u00e7\u00e3o da plataforma de testes em termos do comprimento de onda necess\u00e1rio para a aplica\u00e7\u00e3o (com os diferentes cartuchos \u00f3pticos de emiss\u00e3o de luz), suportes de amostras mais adequados ao experimento (entre frascos, cubetas e microtubos) e capacidade de teste por meio do controle de m\u00faltiplos <span style=\"font-weight: 400\"><a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">unidades ABSOR.B\u2122<\/a><\/span> a partir de um \u00fanico tablet sem fio.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cca1875 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor--h-position-center elementor--v-position-middle elementor-arrows-position-inside elementor-widget elementor-widget-slides\" data-id=\"cca1875\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;navigation&quot;:&quot;arrows&quot;,&quot;autoplay_speed&quot;:4000,&quot;transition_speed&quot;:4000,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;infinite&quot;:&quot;yes&quot;,&quot;transition&quot;:&quot;slide&quot;}\" data-widget_type=\"slides.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper\">\n\t\t\t\t\t<div class=\"elementor-slides-wrapper elementor-main-swiper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Slides\" dir=\"ltr\" data-animation=\"fadeInUp\">\n\t\t\t\t<div class=\"swiper-wrapper elementor-slides\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-repeater-item-c97f30c swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"ABSOR.B\u2122 photo: IoT-Enabled Absorbance &amp; Transmittance Meter with interchangeable wavelengths.\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div><div class=\"elementor-repeater-item-1ae3858 swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"ABSOR.B\u2122 photo with the monitoring tablet: IoT-Enabled Absorbance &amp; Transmittance Meter with interchangeable wavelengths.\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div><div class=\"elementor-repeater-item-909265f swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"ABSOR.B\u2122 photo with the emission and reception optical cartridge.\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\" aria-label=\"Slide anterior\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-left\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M646 125C629 125 613 133 604 142L308 442C296 454 292 471 292 487 292 504 296 521 308 533L604 854C617 867 629 875 646 875 663 875 679 871 692 858 704 846 713 829 713 812 713 796 708 779 692 767L438 487 692 225C700 217 708 204 708 187 708 171 704 154 692 142 675 129 663 125 646 125Z\"><\/path><\/svg>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\" aria-label=\"Pr\u00f3ximo slide\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-right\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M696 533C708 521 713 504 713 487 713 471 708 454 696 446L400 146C388 133 375 125 354 125 338 125 325 129 313 142 300 154 292 171 292 187 292 204 296 221 308 233L563 492 304 771C292 783 288 800 288 817 288 833 296 850 308 863 321 871 338 875 354 875 371 875 388 867 400 854L696 533Z\"><\/path><\/svg>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c2f2d12 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"c2f2d12\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Entre em contato conosco para obter um or\u00e7amento ou para saber mais<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-478c909 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"478c909\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/rheolution.com\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Entre em contato conosco para obter mais informa\u00e7\u00f5es<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e5cdc6 elementor-widget elementor-widget-heading\" data-id=\"3e5cdc6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">REFER\u00caNCIAS<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79c7020 elementor-widget elementor-widget-text-editor\" data-id=\"79c7020\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>[1] <a href=\"https:\/\/edu.rsc.org\/resources\/teachers-resource-uv-\/-visible-spectroscopy\/941.article\" target=\"_blank\" rel=\"noopener\">Teacher\u2019s resource: UV \/ Visible Spectroscopy<\/a><\/p><p>[2] <a href=\"https:\/\/chem.libretexts.org\/Courses\/University_of_Arkansas_Little_Rock\/000%3AChem_1403L_General_Chemistry_Lab\/05%3A_kinetics_-_Integrated_Rate_Laws\/5.2%3A_Beer%27s_Law_and_Integrated_Rate_Law_Lab\" target=\"_blank\" rel=\"noopener\">Beer&#8217;s Law and Integrated Rate Law Lab, LibreTexts Chemistry<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1950302 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"1950302\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorbance.pdf\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Acesse a Nota do Aplicativo na \u00edntegra (PDF) <\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4f6c3f3 elementor-widget elementor-widget-heading\" data-id=\"4f6c3f3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Artigos relacionados<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f2c802 premium-blog-cta-full-yes premium-floating-effects-yes premium-disable-fe-yes elementor-widget__width-initial premium-blog-align-left elementor-widget elementor-widget-premium-addon-blog\" data-id=\"7f2c802\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;force_height&quot;:&quot;true&quot;,&quot;premium_blog_grid&quot;:&quot;yes&quot;,&quot;premium_blog_layout&quot;:&quot;even&quot;,&quot;premium_blog_columns_number&quot;:&quot;50%&quot;,&quot;premium_blog_columns_number_tablet&quot;:&quot;50%&quot;,&quot;premium_blog_columns_number_mobile&quot;:&quot;100%&quot;,&quot;scroll_to_offset&quot;:&quot;yes&quot;,&quot;premium_fe_trigger&quot;:&quot;load&quot;,&quot;premium_fe_direction&quot;:&quot;alternate&quot;,&quot;premium_fe_loop&quot;:&quot;default&quot;,&quot;premium_fe_easing&quot;:&quot;easeInOutSine&quot;}\" data-widget_type=\"premium-addon-blog.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t\n\n\t\t\t\t<div class=\"premium-blog-wrap  premium-blog-even\" data-page=\"65293\">\n\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-post-outer-container\" data-total=\"1\">\n\t\t\t<div class=\"premium-blog-post-container premium-blog-skin-classic\">\n\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumb-effect-wrapper\">\n\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-container premium-blog-zoomin-effect\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"450\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?fit=1200%2C450&amp;ssl=1\" class=\"attachment-full size-full wp-image-65314\" alt=\"ABSOR.B\u2122 photo: IoT-Enabled Absorbance &amp; Transmittance Meter with interchangeable wavelengths.\" data-attachment-id=\"65314\" data-permalink=\"https:\/\/rheolution.com\/pt\/notas-tecnicas\/solucao-moderna-e-acessivel-para-medir-a-absorvancia\/attachment\/web_banner_size-6-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?fit=1200%2C450&amp;ssl=1\" data-orig-size=\"1200,450\" data-comments-opened=\"1\" data-image-title=\"ABSOR.B\u2122 photo\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?fit=1024%2C384&amp;ssl=1\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?resize=300%2C113&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?resize=1024%2C384&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?resize=768%2C288&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?resize=150%2C56&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?resize=480%2C180&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, (max-width:1200px) 100vw, 1200px\" \/>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-overlay\">\n\t\t\t\t\t\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/rheolution.com\/pt\/notas-tecnicas\/solucao-moderna-e-acessivel-para-medir-a-absorvancia\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">A solu\u00e7\u00e3o moderna e acess\u00edvel para medir a absorv\u00e2ncia em comprimentos de onda espec\u00edficos<\/span>\n\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-content-wrapper \">\n\n\t\t\t\t\t<div class=\"premium-blog-inner-container\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h4 class=\"premium-blog-entry-title\">\n\t\t\t<a href=\"https:\/\/rheolution.com\/pt\/notas-tecnicas\/solucao-moderna-e-acessivel-para-medir-a-absorvancia\/\" target=\"_blank\">\n\t\t\t\tA solu\u00e7\u00e3o moderna e acess\u00edvel para medir a absorv\u00e2ncia em comprimentos de onda espec\u00edficos\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<div class=\"premium-blog-entry-meta\">\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t<div class=\"premium-blog-content-inner-wrapper\">\n\t\t<p class=\"premium-blog-post-content\">A absorv\u00e2ncia \u00e9 um conceito fundamental no campo da espectrofotometria, t\u00e9cnica utilizada para medir a quantidade de luz absorvida por uma subst\u00e2ncia em uma ampla faixa de comprimentos de onda. Trata-se de uma grandeza adimensional derivada do logaritmo da raz\u00e3o entre a luz incidente e a luz transmitida atrav\u00e9s de uma amostra. O espectro de absorv\u00e2ncia, frequentemente representado por um gr\u00e1fico, revela os comprimentos de onda nos quais uma subst\u00e2ncia absorve a luz com maior intensidade (Figura 1). Essa informa\u00e7\u00e3o \u00e9 \u00fatil em diversos campos cient\u00edficos, como biologia, qu\u00edmica, bioqu\u00edmica e biologia molecular, para identificar e quantificar compostos espec\u00edficos...<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/pt\/notas-tecnicas\/solucao-moderna-e-acessivel-para-medir-a-absorvancia\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Leia mais \u00bb<\/a><\/div>\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\n\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Rea\u00e7\u00f5es qu\u00edmicas nas quais um dos reagentes ou produtos \u00e9 colorido podem ser monitoradas por meio de medi\u00e7\u00f5es de absorv\u00e2ncia ao longo do tempo. Por exemplo, mol\u00e9culas de corante podem reagir com subst\u00e2ncias espec\u00edficas, alterando sua estrutura qu\u00edmica e, consequentemente, sua capacidade de absorver ou refletir a luz da mesma forma. Da mesma forma, a atividade das enzimas pode ser monitorada quando a rea\u00e7\u00e3o entre a enzima e o substrato resulta em um produto colorido. Nesses dois exemplos, a velocidade das rea\u00e7\u00f5es qu\u00edmicas&#8230;   <\/p>\n","protected":false},"author":195401338,"featured_media":65302,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[286],"tags":[176],"class_list":["post-65293","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-notas-de-aplicacao","tag-absorbance"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - 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