Sequential injection with lab-at-valve (LAV) approach for potentiometric determination of chloride
Sequential injection with "Lab-at-Valve (LAV)" approach is demonstrated for potentiometric determination of chloride. The LAV flow-through electrode system consists of two Ag/AgCl electrodes: one as a reference electrode, silver chloride activated surface-silver wire soaked in a constant-c...
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th-cmuir.6653943832-621542018-09-11T09:22:46Z Sequential injection with lab-at-valve (LAV) approach for potentiometric determination of chloride Jaroon Jakmunee Lop Patimapornlert Siripat Suteerapataranon Narong Lenghor Kate Grudpan Chemistry Sequential injection with "Lab-at-Valve (LAV)" approach is demonstrated for potentiometric determination of chloride. The LAV flow-through electrode system consists of two Ag/AgCl electrodes: one as a reference electrode, silver chloride activated surface-silver wire soaked in a constant-concentration chloride ion solution in a small tube covered with a polymer-membrane, another as a working electrode (a similar silver chloride activated surface-silver wire) placed in a flow channel. The electrode system is attached at one port of a 10 port multiposition valve. A modified autoburette was used as a propelling device. Using SI operation via a program written in-house, based on LabVIEW®, a standard/sample is inserted, via the selection valve, in potassium nitrate as an electrolyte and water is used as a carrier. The zones are transported from the holding coil to the flow cell to monitor the difference in potential due to concentration cell behavior. The potential difference is then recorded as a peak. Peak height is proportional to logarithm of chloride concentration. The SI-LAV for chloride determination is very simple, fast, precise, accurate, automatic and economical. Applications to mineral drinking water and surface water have been made. The results agree with those of IC and titrimetric methods. © 2004 Elsevier B.V. All rights reserved. 2018-09-11T09:22:46Z 2018-09-11T09:22:46Z 2005-02-15 Journal 00399140 2-s2.0-10844271306 10.1016/j.talanta.2004.08.007 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=10844271306&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/62154 |
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Chemistry Jaroon Jakmunee Lop Patimapornlert Siripat Suteerapataranon Narong Lenghor Kate Grudpan Sequential injection with lab-at-valve (LAV) approach for potentiometric determination of chloride |
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Sequential injection with "Lab-at-Valve (LAV)" approach is demonstrated for potentiometric determination of chloride. The LAV flow-through electrode system consists of two Ag/AgCl electrodes: one as a reference electrode, silver chloride activated surface-silver wire soaked in a constant-concentration chloride ion solution in a small tube covered with a polymer-membrane, another as a working electrode (a similar silver chloride activated surface-silver wire) placed in a flow channel. The electrode system is attached at one port of a 10 port multiposition valve. A modified autoburette was used as a propelling device. Using SI operation via a program written in-house, based on LabVIEW®, a standard/sample is inserted, via the selection valve, in potassium nitrate as an electrolyte and water is used as a carrier. The zones are transported from the holding coil to the flow cell to monitor the difference in potential due to concentration cell behavior. The potential difference is then recorded as a peak. Peak height is proportional to logarithm of chloride concentration. The SI-LAV for chloride determination is very simple, fast, precise, accurate, automatic and economical. Applications to mineral drinking water and surface water have been made. The results agree with those of IC and titrimetric methods. © 2004 Elsevier B.V. All rights reserved. |
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Journal |
author |
Jaroon Jakmunee Lop Patimapornlert Siripat Suteerapataranon Narong Lenghor Kate Grudpan |
author_facet |
Jaroon Jakmunee Lop Patimapornlert Siripat Suteerapataranon Narong Lenghor Kate Grudpan |
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Jaroon Jakmunee |
title |
Sequential injection with lab-at-valve (LAV) approach for potentiometric determination of chloride |
title_short |
Sequential injection with lab-at-valve (LAV) approach for potentiometric determination of chloride |
title_full |
Sequential injection with lab-at-valve (LAV) approach for potentiometric determination of chloride |
title_fullStr |
Sequential injection with lab-at-valve (LAV) approach for potentiometric determination of chloride |
title_full_unstemmed |
Sequential injection with lab-at-valve (LAV) approach for potentiometric determination of chloride |
title_sort |
sequential injection with lab-at-valve (lav) approach for potentiometric determination of chloride |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=10844271306&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/62154 |
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