{"id":195,"date":"2026-04-16T06:10:37","date_gmt":"2026-04-16T06:10:37","guid":{"rendered":"https:\/\/citations.tools.bio-logic.fr\/?p=195"},"modified":"2026-04-16T06:10:37","modified_gmt":"2026-04-16T06:10:37","slug":"bentonite-modified-carbon-paste-electrode-as-a-selective-electrochemical-sensor-for-the-detection-of-cadmium-and-lead-in-aqueous-solution","status":"publish","type":"post","link":"https:\/\/citations.tools.bio-logic.fr\/?p=195","title":{"rendered":"Bentonite Modified Carbon Paste Electrode as a Selective Electrochemical Sensor for the Detection of Cadmium and Lead in Aqueous Solution"},"content":{"rendered":"<h4>DOI:<\/h4>\n<p><a href=\"https:\/\/doi.org\/10.20964\/2018.02.35\" target=\"_blank\" rel=\"noopener\">10.20964\/2018.02.35<\/a><\/p>\n<h4>Authors:<\/h4>\n<p>Ali Ourari, Farid Tennah, Ramiro Ru\u00edz-Rosas, Djouhra Aggoun, Emilia Morall\u00f3n<\/p>\n<h4>Abstract:<\/h4>\n<p>This work describes the use of a carbon paste electrode (CPE) modified with a Bentonite clay (Maghnite) as an electrochemical non-pollutant, selective and low cost sensor for Cadmium and Lead detection in aqueous solution. The physico-chemical properties of the clay mineral were analysed by X-Ray Fluorescence analysis (XRF), Powder X-ray diffraction (XRD), Thermogravimetric analysis (TG) and N 2 adsorption isotherm. The square wave anodic stripping voltammetry (SWASV) has been used in which the different electrochemical parameters have been studied. The optimal preconcentration pH and Maghnite-CPE content were found to be 3.4 and 14% w\/w respectively. Under these optimized conditions and at a preconcentration time of 5 min, the response of the electrode was linear with analytes concentration in the ranges from 1 to 30 mol\/L for Cadmium and 0.1 to 30 mol\/L for Lead with limit of detection (LOD) values of 0.16 mol\/L and 0.30 mol\/L for Cadmium and Lead respectively.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DOI: 10.20964\/2018.02.35 Authors: Ali Ourari, Farid Tennah, Ramiro Ru\u00edz-Rosas, Djouhra Aggoun, Emilia Morall\u00f3n Abstract: This work describes the use of a carbon paste electrode (CPE) modified with a Bentonite clay (Maghnite) as an electrochemical non-pollutant, selective and low cost sensor for Cadmium and Lead detection in aqueous solution. The physico-chemical properties of the clay mineral [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-195","post","type-post","status-publish","format-standard","hentry","category-sp-300-potentiostat"],"_links":{"self":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts\/195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=195"}],"version-history":[{"count":0,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=\/wp\/v2\/posts\/195\/revisions"}],"wp:attachment":[{"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/citations.tools.bio-logic.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}