Sequential injection monosegmented flow voltammetric determination of cadmium and lead using a bismuth film working electrode
A cost-effective sequential injection monosegmented flow analysis (SI-MSFA) with anodic stripping voltammetric (ASV) detection has been developed for determination of Cd(II) and Pb(II). The bismuth film working electrode (BiFE) was employed for accumulative preconcentration of the metals by applying...
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th-cmuir.6653943832-489672018-08-16T02:07:21Z Sequential injection monosegmented flow voltammetric determination of cadmium and lead using a bismuth film working electrode Watsaka Siriangkhawut Somkid Pencharee Kate Grudpan Jaroon Jakmunee Chemistry A cost-effective sequential injection monosegmented flow analysis (SI-MSFA) with anodic stripping voltammetric (ASV) detection has been developed for determination of Cd(II) and Pb(II). The bismuth film working electrode (BiFE) was employed for accumulative preconcentration of the metals by applying a fixed potential of -1.10 V versus Ag/AgCl electrode for 90 s. The SI-MSFA provides a convenient means for preparation of a homogeneous solution zone containing sample in an acetate buffer electrolyte solution and Bi(III) solution for in situ plating of BiFE, ready for ASV measurement at a flow through thin layer electrochemical cell. Under the optimum conditions, linear calibration graphs in range of 10-100 μg L-1of both Cd(II) and Pb(II) were obtained with detection limits of 1.4 and 6.9 μg L-1of Cd(II) and Pb(II), respectively. Relative standard deviations were 2.7 and 3.1%, for 11 replicate analyses of 25 μg L-1Cd(II) and 25 μg L-1Pb(II), respectively. A sample throughput of 12 h-1was achieved with low consumption of reagent and sample solutions. The system was successfully applied for analysis of water samples collected from a draining pond of zinc mining, validating by inductively coupled plasma-optical emission spectroscopy (ICP-OES) method. © 2009 Elsevier B.V. All rights reserved. 2018-08-16T02:07:21Z 2018-08-16T02:07:21Z 2009-09-15 Journal 00399140 2-s2.0-67650141099 10.1016/j.talanta.2009.03.032 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=67650141099&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/48967 |
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Chemistry Watsaka Siriangkhawut Somkid Pencharee Kate Grudpan Jaroon Jakmunee Sequential injection monosegmented flow voltammetric determination of cadmium and lead using a bismuth film working electrode |
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A cost-effective sequential injection monosegmented flow analysis (SI-MSFA) with anodic stripping voltammetric (ASV) detection has been developed for determination of Cd(II) and Pb(II). The bismuth film working electrode (BiFE) was employed for accumulative preconcentration of the metals by applying a fixed potential of -1.10 V versus Ag/AgCl electrode for 90 s. The SI-MSFA provides a convenient means for preparation of a homogeneous solution zone containing sample in an acetate buffer electrolyte solution and Bi(III) solution for in situ plating of BiFE, ready for ASV measurement at a flow through thin layer electrochemical cell. Under the optimum conditions, linear calibration graphs in range of 10-100 μg L-1of both Cd(II) and Pb(II) were obtained with detection limits of 1.4 and 6.9 μg L-1of Cd(II) and Pb(II), respectively. Relative standard deviations were 2.7 and 3.1%, for 11 replicate analyses of 25 μg L-1Cd(II) and 25 μg L-1Pb(II), respectively. A sample throughput of 12 h-1was achieved with low consumption of reagent and sample solutions. The system was successfully applied for analysis of water samples collected from a draining pond of zinc mining, validating by inductively coupled plasma-optical emission spectroscopy (ICP-OES) method. © 2009 Elsevier B.V. All rights reserved. |
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Journal |
author |
Watsaka Siriangkhawut Somkid Pencharee Kate Grudpan Jaroon Jakmunee |
author_facet |
Watsaka Siriangkhawut Somkid Pencharee Kate Grudpan Jaroon Jakmunee |
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Watsaka Siriangkhawut |
title |
Sequential injection monosegmented flow voltammetric determination of cadmium and lead using a bismuth film working electrode |
title_short |
Sequential injection monosegmented flow voltammetric determination of cadmium and lead using a bismuth film working electrode |
title_full |
Sequential injection monosegmented flow voltammetric determination of cadmium and lead using a bismuth film working electrode |
title_fullStr |
Sequential injection monosegmented flow voltammetric determination of cadmium and lead using a bismuth film working electrode |
title_full_unstemmed |
Sequential injection monosegmented flow voltammetric determination of cadmium and lead using a bismuth film working electrode |
title_sort |
sequential injection monosegmented flow voltammetric determination of cadmium and lead using a bismuth film working electrode |
publishDate |
2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=67650141099&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/48967 |
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