{"id":65262,"date":"2023-11-08T16:23:51","date_gmt":"2023-11-08T21:23:51","guid":{"rendered":"https:\/\/rheolution.com\/?p=65262"},"modified":"2026-08-13T11:52:39","modified_gmt":"2026-08-13T15:52:39","slug":"una-soluzione-moderna-e-conveniente-per-misurare-lassorbanza","status":"publish","type":"post","link":"https:\/\/rheolution.com\/it\/note-tecniche\/una-soluzione-moderna-e-conveniente-per-misurare-lassorbanza\/","title":{"rendered":"La soluzione moderna e conveniente per misurare l&#8217;assorbanza a lunghezze d&#8217;onda specifiche"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"65262\" class=\"elementor elementor-65262 elementor-34649\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4dffe49 e-flex e-con-boxed e-con e-parent\" data-id=\"4dffe49\" 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-5ba9c50 elementor-widget elementor-widget-heading\" data-id=\"5ba9c50\" 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 tecnica | 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-553d020 elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"553d020\" 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\">COMPRENDERE L'ASSORBANZA A SPECIFICHE LUNGHEZZE D'ONDA: PRECISIONE A PREZZI ACCESSIBILI NELLO SPETTROFOTOMETRIA<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-80adbee elementor-widget elementor-widget-text-editor\" data-id=\"80adbee\" 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>di <a href=\"https:\/\/www.linkedin.com\/in\/dimitria-camas\u00e3o-049002a2\/\" target=\"_blank\" rel=\"noopener\">Dimitria Camas\u00e3o<\/a>,<\/p><p><span style=\"font-weight: 400\">Applicazione<\/span><span style=\"font-weight: 400\"> Scienziati,<\/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\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3097208 e-flex e-con-boxed e-con e-parent\" data-id=\"3097208\" 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-a1f66e8 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"a1f66e8\" 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\">COS\u2019\u00c8 L\u2019ASSORBANZA? ALLA SCOPERTA DEL SUO RUOLO NELLO SPETTROFOTOMETRIA <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7144aa8 elementor-widget elementor-widget-text-editor\" data-id=\"7144aa8\" 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>L&#8217;assorbanza \u00e8 un concetto fondamentale nel campo della spettrofotometria, una tecnica usata per misurare la quantit\u00e0 di luce assorbita da una sostanza su un ampio intervallo di lunghezze d&#8217;onda. \u00c8 una grandezza adimensionale derivata dal logaritmo del rapporto tra la luce incidente e quella trasmessa attraverso un campione. Lo spettro di assorbanza, spesso rappresentato sotto forma di grafico, mostra le lunghezze d\u2019onda alle quali una sostanza assorbe la luce con maggiore intensit\u00e0 (<strong>Figura 1<\/strong>). Queste informazioni sono utili in vari campi scientifici, come la biologia, la chimica, la biochimica e la biologia molecolare, per identificare e quantificare composti o molecole specifiche presenti in un campione.   <\/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-e987a6c elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-image\" data-id=\"e987a6c\" 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=\"1711\" height=\"1201\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1_Absorbance-spectrum-of-the-methylene-blue-solution.png?fit=1711%2C1201&amp;ssl=1\" class=\"attachment-full size-full wp-image-65264\" alt=\"Graph depicting the absorbance spectrum of methylene blue solution, showing peaks and troughs at different wavelengths.\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1_Absorbance-spectrum-of-the-methylene-blue-solution.png?w=1711&amp;ssl=1 1711w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1_Absorbance-spectrum-of-the-methylene-blue-solution.png?resize=300%2C211&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1_Absorbance-spectrum-of-the-methylene-blue-solution.png?resize=1024%2C719&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1_Absorbance-spectrum-of-the-methylene-blue-solution.png?resize=768%2C539&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1_Absorbance-spectrum-of-the-methylene-blue-solution.png?resize=1536%2C1078&amp;ssl=1 1536w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1_Absorbance-spectrum-of-the-methylene-blue-solution.png?resize=107%2C75&amp;ssl=1 107w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1_Absorbance-spectrum-of-the-methylene-blue-solution.png?resize=480%2C337&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, (max-width:1711px) 100vw, 1711px\" data-attachment-id=\"65264\" data-permalink=\"https:\/\/rheolution.com\/it\/note-tecniche\/una-soluzione-moderna-e-conveniente-per-misurare-lassorbanza\/attachment\/fig1_absorbance-spectrum-of-the-methylene-blue-solution-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1_Absorbance-spectrum-of-the-methylene-blue-solution.png?fit=1711%2C1201&amp;ssl=1\" data-orig-size=\"1711,1201\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Absorbance spectrum of the methylene blue solution\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1_Absorbance-spectrum-of-the-methylene-blue-solution.png?fit=1024%2C719&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-6b360d8 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"6b360d8\" 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><b>Figura 1: <\/b>Spettro <b>di assorbimento <\/b>della soluzione di blu di metilene.  <\/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-56f44b7 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"56f44b7\" 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\">MISURAZIONE DELL'ASSORBANZA A UNA LUNGHEZZA D'ONDA SPECIFICA CON ABSOR.B\u2122: PRECISIONE NELL'ANALISI CHIMICA E BIOCHIMICA<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c99910f elementor-widget elementor-widget-text-editor\" data-id=\"c99910f\" 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><a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\"> L&#8217;ABSOR.B\u2122<\/a> fa parte della famiglia di strumenti ottici CASCAD.S\u2122 di Rheolution. Questo moderno strumento misura la luce assorbita da una sostanza a lunghezze d&#8217;onda discrete utilizzando cartucce ottiche intercambiabili che emettono luce monocromatica. I valori di assorbanza a una determinata lunghezza d\u2019onda sono ampiamente utilizzati nelle analisi chimiche e biochimiche per quantificare la concentrazione di una sostanza in soluzione o per monitorare le reazioni nel tempo. Le diverse cartucce di emissione (come Emitt.405, Emitt.520, Emitt.635, Emitt.850) ti permettono di scegliere la lunghezza d\u2019onda giusta per la sostanza che stai analizzando. Inoltre, le misurazioni possono essere raccolte e salvate in modo continuo nell\u2019app Soft Matter Analytics\u2122, che permette di controllare pi\u00f9 unit\u00e0 <a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">ABSOR.B\u2122.<\/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-161c525 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"161c525\" 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\">ASSORBANZA E TRASMISSIONE DEL BLU DI METILENE A LUNGHEZZE D'ONDA SPECIFICHE CON ABSOR.B\u2122<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2650f7d elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-image\" data-id=\"2650f7d\" 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=\"1440\" height=\"675\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Hands_holding_absorb_banner.jpg?fit=1440%2C675&amp;ssl=1\" class=\"attachment-full size-full wp-image-34533\" alt=\"Person holding an ABSOR.B\u2122, an Absorbance &amp; Transmittance Meter, in their hand, demonstrating the device&apos;s size and usability.\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Hands_holding_absorb_banner.jpg?w=1440&amp;ssl=1 1440w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Hands_holding_absorb_banner.jpg?resize=300%2C141&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Hands_holding_absorb_banner.jpg?resize=1024%2C480&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Hands_holding_absorb_banner.jpg?resize=768%2C360&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Hands_holding_absorb_banner.jpg?resize=150%2C70&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Hands_holding_absorb_banner.jpg?resize=480%2C225&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, (max-width:1440px) 100vw, 1440px\" data-attachment-id=\"34533\" data-permalink=\"https:\/\/rheolution.com\/it\/hands_holding_absorb_banner-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Hands_holding_absorb_banner.jpg?fit=1440%2C675&amp;ssl=1\" data-orig-size=\"1440,675\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Hands_holding_absorb_banner\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Hands_holding_absorb_banner.jpg?fit=1024%2C480&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-f1ea971 elementor-widget elementor-widget-text-editor\" data-id=\"f1ea971\" 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>Il blu di metilene \u00e8 un sale usato come farmaco in ambito clinico e come colorante nei laboratori di ematologia, immunoematologia e microbiologia clinica per colorare cellule e materiale genetico. I suoi picchi di assorbimento si trovano a 668 e 609 nm (Merck Index). Sono state testate diverse concentrazioni di blu di metilene in acqua deionizzata con <a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">l\u2019ABSOR.B\u2122<\/a>, utilizzando fiale di vetro trasparente da 1 mL e le cartucce Emitt.405, Emitt.520, Emitt.635 ed Emitt.850.    <\/p><p><strong>La Figura 2<\/strong> mostra i risultati medi \u00b1 deviazione standard (tre campioni diversi per ogni concentrazione testata, n=3). Come ci si aspettava dallo spettro (frecce nella Figura 1), la luce rossa (635 nm) \u00e8 stata fortemente assorbita, seguita da un leggero assorbimento della luce verde (520 nm). La luce viola-blu (405 nm) e quella infrarossa (850 nm) hanno mostrato un assorbimento quasi nullo nell\u2019intervallo di concentrazioni studiato.  <\/p><p>La relazione tra assorbanza e concentrazione \u00e8 lineare secondo la <a href=\"https:\/\/chem.libretexts.org\/Bookshelves\/Physical_and_Theoretical_Chemistry_Textbook_Maps\/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)\/Spectroscopy\/Electronic_Spectroscopy\/Electronic_Spectroscopy_Basics\/The_Beer-Lambert_Law\" target=\"_blank\" rel=\"noopener\">legge di Beer-Lambert<\/a>, a condizione che la soluzione non sia troppo concentrata e che la luce incidente sia monocromatica. La relazione lineare ottenuta con la luce rossa pu\u00f2 essere usata per determinare la concentrazione di blu di metilene in una soluzione sconosciuta. <\/p><p>In base ai risultati dell&#8217;assorbanza, la trasmittanza della luce rossa (635 nm) \u00e8 diminuita all&#8217;aumentare della concentrazione di blu di metilene nella soluzione. A 10 mg\/L, la luce trasmessa era inferiore al 10%. La trasmittanza ha mostrato una leggera diminuzione per la luce verde (520 nm), viola-blu (405 nm) e infrarossa (850 nm) (sempre superiore all\u201985%).  <\/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-305b112 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-image\" data-id=\"305b112\" 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=\"2251\" height=\"1201\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Absorbance.png?fit=2251%2C1201&amp;ssl=1\" class=\"attachment-full size-full wp-image-34662\" alt=\"Graph of methylene blue absorbance vs. concentration in mg\/L, highlighting the correlation.\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Absorbance.png?w=2251&amp;ssl=1 2251w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Absorbance.png?resize=300%2C160&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Absorbance.png?resize=1024%2C546&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Absorbance.png?resize=768%2C410&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Absorbance.png?resize=1536%2C820&amp;ssl=1 1536w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Absorbance.png?resize=2048%2C1093&amp;ssl=1 2048w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Absorbance.png?resize=141%2C75&amp;ssl=1 141w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Absorbance.png?resize=480%2C256&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, (max-width:2251px) 100vw, 2251px\" data-attachment-id=\"34662\" data-permalink=\"https:\/\/rheolution.com\/it\/fig2_absorbance-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Absorbance.png?fit=2251%2C1201&amp;ssl=1\" data-orig-size=\"2251,1201\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"methylene blue absorbance vs. concentration\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Absorbance.png?fit=1024%2C546&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-8220c6a elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-image\" data-id=\"8220c6a\" 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=\"2251\" height=\"1201\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Transmittance.png?fit=2251%2C1201&amp;ssl=1\" class=\"attachment-full size-full wp-image-34664\" alt=\"Graph showing transmittance of methylene blue vs. concentration in mg\/L.\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Transmittance.png?w=2251&amp;ssl=1 2251w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Transmittance.png?resize=300%2C160&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Transmittance.png?resize=1024%2C546&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Transmittance.png?resize=768%2C410&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Transmittance.png?resize=1536%2C820&amp;ssl=1 1536w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Transmittance.png?resize=2048%2C1093&amp;ssl=1 2048w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Transmittance.png?resize=141%2C75&amp;ssl=1 141w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Transmittance.png?resize=480%2C256&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, (max-width:2251px) 100vw, 2251px\" data-attachment-id=\"34664\" data-permalink=\"https:\/\/rheolution.com\/it\/fig2_transmittance-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Transmittance.png?fit=2251%2C1201&amp;ssl=1\" data-orig-size=\"2251,1201\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Graph showing transmittance of methylene blue\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2_Transmittance.png?fit=1024%2C546&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-a388d80 elementor-widget__width-initial elementor-widget-mobile__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"a388d80\" 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>Figura 2<\/strong>: Assorbanza e trasmittanza del blu di metilene in funzione della concentrazione (in mg\/L) utilizzando le cartucce ottiche Emitt.405, Emitt.520, Emitt.635 ed Emitt.850 nell\u2019ABSOR.B\u2122 (n=3, barre di errore incluse ma non visibili).<\/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-a337dea elementor-widget elementor-widget-text-editor\" data-id=\"a337dea\" 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>Questi risultati dimostrano anche l&#8217;elevata ripetibilit\u00e0 delle misurazioni (barre di errore incluse ma non visibili), con deviazioni standard sempre inferiori al 5%. Nel complesso, <a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">ABSOR.B\u2122<\/a> \u00e8 uno strumento moderno e conveniente per determinare con precisione la concentrazione di diversi soluti utilizzando la lunghezza d&#8217;onda adeguata. <\/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-6c4c978 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"6c4c978\" 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\">PUNTI CHIAVE<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b2f419 elementor-widget elementor-widget-text-editor\" data-id=\"0b2f419\" 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>La versatilit\u00e0 <a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">dell&#8217;ABSOR.B\u2122<\/a> permette di usare lo stesso strumento per misurare l&#8217;assorbanza e la trasmittanza di diverse soluzioni, selezionando la lunghezza d&#8217;onda giusta grazie alla vasta gamma di cartucce disponibili.<\/li><li>Le curve di calibrazione ricavate dai campioni standard possono essere salvate nell&#8217;app per tablet per determinare velocemente la concentrazione della soluzione.<\/li><li>La modularit\u00e0 di <a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">ABSOR.B\u2122<\/a> permette all&#8217;utente di ampliare la propria piattaforma di analisi man mano che le esigenze cambiano, grazie a pi\u00f9 unit\u00e0, diverse cartucce per l&#8217;emissione e la ricezione della luce e portacampioni.<\/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-60b1e18 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"60b1e18\" 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\/Absorb_technical_note_v2.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\">Leggi la nota tecnica completa (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-dd82f24 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=\"dd82f24\" 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=\"Diapositiva precedente\">\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=\"Prossima diapositiva\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg 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pi\u00f9<\/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-42be0bf elementor-align-center elementor-widget elementor-widget-button\" data-id=\"42be0bf\" 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\">Contattaci per saperne di pi\u00f9<\/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<div class=\"elementor-element elementor-element-f27201f e-flex e-con-boxed e-con e-child\" data-id=\"f27201f\" 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-c0b5bd5 elementor-widget elementor-widget-heading\" data-id=\"c0b5bd5\" 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\">Articoli correlati<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d92aa73 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=\"d92aa73\" data-element_type=\"widget\" data-e-type=\"widget\" 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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-7.jpg?fit=1200%2C450&amp;ssl=1\" class=\"attachment-full size-full wp-image-65290\" alt=\"Image for the blog: Measuring Absorbance Kinetics and Rate of Chemical Reactions\" data-attachment-id=\"65290\" data-permalink=\"https:\/\/rheolution.com\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/attachment\/web_banner_size-7-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-7.jpg?fit=1200%2C450&amp;ssl=1\" data-orig-size=\"1200,450\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Measuring Absorbance\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-7.jpg?fit=1024%2C384&amp;ssl=1\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-7.jpg?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-7.jpg?resize=300%2C113&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-7.jpg?resize=1024%2C384&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-7.jpg?resize=768%2C288&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-7.jpg?resize=150%2C56&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-7.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\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">CAPIRE L&#8217;ASSORBANZA: MISURARE LE VELOCIT\u00c0 DI REAZIONE IN CHIMICA<\/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\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/\" target=\"_blank\">\n\t\t\t\tCAPIRE L&#8217;ASSORBANZA: MISURARE LE VELOCIT\u00c0 DI REAZIONE IN CHIMICA\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\">Le reazioni chimiche in cui uno dei reagenti o dei prodotti \u00e8 colorato possono essere monitorate misurando l\u2019assorbanza nel tempo. Ad esempio, le molecole di colorante possono reagire con sostanze specifiche, modificando la loro struttura chimica e quindi la loro capacit\u00e0 di assorbire o riflettere la luce allo stesso modo. Allo stesso modo, l\u2019attivit\u00e0 degli enzimi pu\u00f2 essere monitorata quando la reazione tra l\u2019enzima e il substrato porta alla formazione di un prodotto colorato. In questi due esempi, la velocit\u00e0 delle reazioni chimiche...<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Leggi di pi\u00f9 \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\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>L&#8217;assorbanza \u00e8 un concetto fondamentale nel campo della spettrofotometria, una tecnica usata per misurare la quantit\u00e0 di luce assorbita da una sostanza su un ampio intervallo di lunghezze d&#8217;onda. \u00c8 una grandezza adimensionale derivata dal logaritmo del rapporto tra la luce incidente e quella trasmessa attraverso un campione. Lo spettro di assorbanza, spesso rappresentato graficamente, rivela le lunghezze d\u2019onda alle quali una sostanza assorbe la luce con maggiore intensit\u00e0 (Figura 1). Queste informazioni sono utili in vari campi scientifici come la biologia, la chimica, la biochimica e la biologia molecolare per identificare e quantificare composti specifici&#8230;   <\/p>\n","protected":false},"author":195401338,"featured_media":65263,"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_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[324],"tags":[176],"class_list":["post-65262","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-note-tecniche","tag-absorbance"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - 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