{"id":10127,"date":"2026-05-10T15:50:24","date_gmt":"2026-05-10T15:50:24","guid":{"rendered":"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/?p=10127"},"modified":"2026-05-15T08:42:24","modified_gmt":"2026-05-15T08:42:24","slug":"pjc-1026","status":"publish","type":"post","link":"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/2026\/05\/10\/pjc-1026\/","title":{"rendered":"Detection of Total Mercury in Water Samples Collected from \u00a0Sindh using a modified gold electrode coupled with anodic stripping voltammetry"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"10127\" class=\"elementor elementor-10127\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-28d57e6 e-flex e-con-boxed e-con e-parent\" data-id=\"28d57e6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-6e46e48 e-con-full e-flex e-con e-child\" data-id=\"6e46e48\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-540c02a elementor-widget elementor-widget-text-editor\" data-id=\"540c02a\" 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<table border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\" align=\"center\"><tbody><tr><td><div><strong>Research Article| Open Access<\/strong><\/div><div class=\"item doi\"><span class=\"value\">Volume 16 | Issue 03 | Page 90-98| <a href=\"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/wp-content\/uploads\/sites\/2\/2026\/05\/PJC.v16.i03.p10.pdf\" target=\"_blank\" rel=\"noopener\">https:\/\/doi.org\/10.15228\/2026.v16.i3.p10<\/a><\/span><\/div><\/td><\/tr><\/tbody><\/table><h4><strong><b>Detection of Total Mercury in Water Samples Collected from \u00a0Sindh using a modified gold electrode coupled with anodic stripping voltammetry<\/b><\/strong><\/h4><p><a href=\"https:\/\/orcid.org\/0009-0006-0851-0744\" target=\"_blank\" rel=\"noopener\"><strong>Abdul Sattar Soomro<\/strong><\/a><br \/>National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Sindh 76080 Pakistan<\/p><p><strong>Siraj Uddin<\/strong><br \/>National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Sindh 76080 Pakistan<\/p><p><strong>Tasneem Gul Kazi<\/strong><br \/>National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Sindh 76080 Pakistan<\/p><p><strong>Mushtaque Ali Jakhrani<sup>2<\/sup><\/strong><br \/>Shah Abdul Latif University. Khair Pur Sindh, Pakistan<\/p><div class=\"row\"><div class=\"main_entry\"><table border=\"0\" width=\"93%\" cellspacing=\"0\" cellpadding=\"0\" align=\"center\"><tbody><tr><td align=\"center\" valign=\"top\"><strong>Received<\/strong><br \/>02 Apr, 2026<\/td><td align=\"center\" valign=\"top\"><strong>Accepted<\/strong><br \/>04 May, 2026<\/td><td align=\"center\" valign=\"top\"><strong>Published<\/strong><br \/>10 May, 2026<\/td><\/tr><\/tbody><\/table><div class=\"item abstract\"><p><strong>ABSTRACT:<\/strong><br \/>Mercury (Hg) is recognized as one of the most toxic heavy metals due to its persistence, bioaccumulation, and severe impact on human health and aquatic ecosystems. Even at trace concentrations, exposure to Hg can lead to neurological, renal, and developmental disorders, making its monitoring in environmental samples critically important. Therefore, this study aimed to detect total Hg in fresh and waste water samples by anodic stripping voltammetry using a modified gold electrode. For this purpose, water samples from 5 different regions of Sindh were collected in plastic bottles and transported to the NCEAC Lab. The signal of aqueous Hg(II) was measured in differential pulse anodic Stripping Voltammetry (DPASV) mode, while the effects of deposition potential and deposition time on the analytical signal were examined. The supporting electrolyte was 0.2 M HCl.\u00a0The repeatability, linearity, accuracy, interference effects of foreign ions, pH, and the limit of detection of the procedure were also studied. The performance of the gold electrode (AuE) was evaluated, demonstrating a low limit of detection (LOD), greater reproducibility, and higher sensitivity to Hg in water samples. A detection limit of 0.06 ng\/mL was achieved with a preconcentration time of 600s. The reproducibility, expressed as relative standard deviation (RSD), was always less than 1.62%. The method demonstrated good selectivity and was successfully applied to detect Hg in fresh and wastewater samples collected from various locations within the study area.<br \/><strong>Keywords<\/strong>: Hg, water samples, Gold electrode, Anodic stripping voltammetry<\/p><p><strong>How to Cite this paper?<\/strong><\/p><\/div><div class=\"item abstract\"><div class=\"csl-entry\"><p><strong>APA- Style<\/strong><br \/>A. S. Soomro, S. Uddin, T. G. Kazi, M. A. Jakhrani, (2026). Detection of Total Mercury in Water Samples Collected from \u00a0Sindh using a modified gold electrode coupled with anodic stripping voltammetry <a href=\"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/wp-content\/uploads\/sites\/2\/2026\/05\/PJC.v16.i03.p10.pdf\" target=\"_blank\" rel=\"noopener\"><em>Pakistan Journal of Chemistry<\/em>, 16(3), 90-98.<\/a> https:\/\/doi.org\/10.15228\/2026.v16.i3.p.90-98.<\/p><p><strong>ACS Style<\/strong><br \/>Soomro A. S., Uddin S., Kazi T. G., Jakhrani M. A., <em>Detection of Total Mercury in Water Samples Collected from \u00a0Sindh using a modified gold electrode coupled with anodic stripping voltammetry<\/em> <a href=\"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/wp-content\/uploads\/sites\/2\/2026\/05\/PJC.v16.i03.p10.pdf\" target=\"_blank\" rel=\"noopener\"><em>Pakistan Journal of Chemistry<\/em>, 16(3), 90-98.<\/a> https:\/\/doi.org\/10.15228\/2026.v16.i3.p.90-98.<\/p><p><strong>AMA Style<\/strong><br \/>Soomro A. S; Uddin S; Kazi T. G; Jakhrani M. A; <em>Detection of Total Mercury in Water Samples Collected from \u00a0Sindh using a modified gold electrode coupled with anodic stripping voltammetry<\/em> <a href=\"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/wp-content\/uploads\/sites\/2\/2026\/05\/PJC.v16.i03.p10.pdf\" target=\"_blank\" rel=\"noopener\"><em>Pakistan Journal of Chemistry<\/em>, 16(3), 90-98.<\/a> https:\/\/doi.org\/10.15228\/2026.v16.i3.p.90-98.<\/p><p><strong>Chicago\/Turabian Style<\/strong><br \/>Soomro A S, Uddin S, Kazi T G, Jakhrani M A, <em>Detection of Total Mercury in Water Samples Collected from \u00a0Sindh using a modified gold electrode coupled with anodic stripping voltammetry (2026)<\/em> <a href=\"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/wp-content\/uploads\/sites\/2\/2026\/05\/PJC.v16.i03.p10.pdf\" target=\"_blank\" rel=\"noopener\"><em>Pakistan Journal of Chemistry<\/em>, 16(3), 90-98.<\/a> https:\/\/doi.org\/10.15228\/2026.v16.i3.p.90-98.<\/p><p><a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\" rel=\"license\"><img decoding=\"async\" src=\"https:\/\/i.creativecommons.org\/l\/by\/4.0\/88x31.png\" alt=\"Creative Commons License\" \/><\/a><\/p><\/div><\/div><div class=\"item copyright\"><p>This work is licensed under a\u00a0<a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\" rel=\"license\">Creative Commons Attribution 4.0 International License<\/a>.<\/p><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7cd5a3a e-con-full e-flex e-con e-child\" data-id=\"7cd5a3a\" data-element_type=\"container\" data-e-type=\"container\">\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>Research Article| Open AccessVolume 16 | Issue 03 | Page 90-98| https:\/\/doi.org\/10.15228\/2026.v16.i3.p10 Detection of Total Mercury in Water Samples Collected from \u00a0Sindh using a modified gold electrode coupled with anodic stripping voltammetry Abdul Sattar SoomroNational Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Sindh 76080 Pakistan Siraj UddinNational Center of Excellence in Analytical [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[66,68],"tags":[],"class_list":["post-10127","post","type-post","status-publish","format-standard","hentry","category-66","category-issue-3"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Detection of Total Mercury in Water Samples Collected from \u00a0Sindh using a modified gold electrode coupled with anodic stripping voltammetry - Pakistan Journal of Chemistry<\/title>\n<meta name=\"robots\" content=\"index, follow, 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