{"id":304,"date":"2017-10-08T08:38:19","date_gmt":"2017-10-08T01:38:19","guid":{"rendered":"http:\/\/cbg.farmasi.unej.ac.id\/?p=304"},"modified":"2017-10-08T08:38:19","modified_gmt":"2017-10-08T01:38:19","slug":"simple-regression-model-using-an-optode-for-the-simultaneous-determination-of-zinc-and-cadmium-mixtures-in-aqueous-samples","status":"publish","type":"post","link":"https:\/\/cbg.farmasi.unej.ac.id\/?p=304","title":{"rendered":"Simple regression model using an optode for the simultaneous determination of zinc and cadmium mixtures in aqueous samples"},"content":{"rendered":"<p><span id=\"yui_3_14_1_1_1507426471235_706\" class=\"foldable-text\"><img loading=\"lazy\" decoding=\"async\" id=\"yui_3_14_1_1_1507426471235_903\" class=\"alignleft\" src=\"https:\/\/www.researchgate.net\/profile\/Bambang_Kuswandi\/publication\/11376232\/figure\/fig1\/AS:514863082737665@1499764332951\/Fig-1-Instrumentation-used-for-reflectance-measurements.pbm\" width=\"325\" height=\"170\" \/>An optical-fiber chemical sensor (optode) is described for the simultaneous determination of Zn2+ and Cd2+ mixtures using 2-(5-bromo-2-pyridylazo)-5-(diethylamino)phenol immobilized onto XAD-4 (Br-PADAP\/XAD-4). A simultaneous analysis was achieved by using a single-wavelength kinetic approach coupled with a regression model. Here, the regression model was<\/span><!--more--><span id=\"yui_3_14_1_1_1507426471235_706\" class=\"foldable-text\">derived for the slope response of Br-PADAP\/XAD-4 to binary mixtures of the metal ions, Zn2+ and Cd2+, at pH 8. The model was used then to predict the concentration of one metal ion while the other was kept constant. This was found to be reasonably successful for Zn2+ and Cd2+, with deviations of 3% and 10%, respectively. The sensor was also found to provide excellent sensitivity for both metal ions with excellent LODs (&lt; 0.1 ppm) and very short analysis times (&lt; 30 s).<\/span><\/p>\n<p>Full text available <a href=\"https:\/\/www.researchgate.net\/publication\/11376232_Simple_regression_model_using_an_optode_for_the_simultaneous_determination_of_zinc_and_cadmium_mixtures_in_aqueous_samples\">here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An optical-fiber chemical sensor (optode) is described for the simultaneous determination of Zn2+ and Cd2+ mixtures using 2-(5-bromo-2-pyridylazo)-5-(diethylamino)phenol immobilized onto XAD-4 (Br-PADAP\/XAD-4). A simultaneous analysis was achieved by using a single-wavelength kinetic approach coupled with a regression model. Here, the <a href=\"https:\/\/cbg.farmasi.unej.ac.id\/?p=304\" class=\"read-more\">Read More &#8230;<\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,7],"tags":[21,23],"class_list":["post-304","post","type-post","status-publish","format-standard","hentry","category-optrode","category-tak-berkategori","tag-heavy-metal-sensor","tag-metal-ion"],"_links":{"self":[{"href":"https:\/\/cbg.farmasi.unej.ac.id\/index.php?rest_route=\/wp\/v2\/posts\/304","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cbg.farmasi.unej.ac.id\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cbg.farmasi.unej.ac.id\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cbg.farmasi.unej.ac.id\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/cbg.farmasi.unej.ac.id\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=304"}],"version-history":[{"count":0,"href":"https:\/\/cbg.farmasi.unej.ac.id\/index.php?rest_route=\/wp\/v2\/posts\/304\/revisions"}],"wp:attachment":[{"href":"https:\/\/cbg.farmasi.unej.ac.id\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=304"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cbg.farmasi.unej.ac.id\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=304"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cbg.farmasi.unej.ac.id\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=304"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}