Cover Image

Comparison of indirect cathodic stripping voltammetric methods based on accumulation of mercury, copper(I) and nickel salts or complexes at a hanging mercury drop electrode : determination of 2-mercaptobenzot h iazole

A preliminary study of the indirect cathodic stripping voltammetric determination of 2-mercaptobenzothiazole (MBT) based on accumulation of its mercury, copper(1) and nickel(I1) salts or complexes was made as part of a wider study comparing these three related techniques of determining thi...

Full description

Saved in:
Bibliographic Details
Main Authors: Fogg, Arnold G., Ismail, Razali, Ahmad, Rahmalan, Banica, Florin G.
Format: Article
Language:English
Published: Royal Society of Chemistry 1996
Subjects:
QD Chemistry
Online Access:http://eprints.utm.my/id/eprint/864/1/RazaliIsmail1996_ComparisonofIndirectCathodicStripping.pdf
http://eprints.utm.my/id/eprint/864/
http://dx.doi.org/10.1039/AN9962101877
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utm.864
record_format eprints
spelling my.utm.8642017-10-19T06:53:46Z http://eprints.utm.my/id/eprint/864/ Comparison of indirect cathodic stripping voltammetric methods based on accumulation of mercury, copper(I) and nickel salts or complexes at a hanging mercury drop electrode : determination of 2-mercaptobenzot h iazole Fogg, Arnold G. Ismail, Razali Ahmad, Rahmalan Banica, Florin G. QD Chemistry A preliminary study of the indirect cathodic stripping voltammetric determination of 2-mercaptobenzothiazole (MBT) based on accumulation of its mercury, copper(1) and nickel(I1) salts or complexes was made as part of a wider study comparing these three related techniques of determining thiols. Detection limits for MBT using the copper@) and nickel(I1) methods ( c 2 X considerably lower than that for the mercury method (about 3 x lo-' moll-1). The mercury method is susceptible to interference from copper(I1) and large amounts of nickel(@, and seems generally to be less reliable for the determination of MBT. The change from accumulation as the mercury salt to accumulation as the copper(1) salt is illustrated in the presence of excess of MBT over copper(@ with increasing copper(I1) concentrations, and with change of accumulation potential to more negative values from +lo0 mV. In the presence of a stoichiometric amount or excess of copper(I1) over MBT, no mercury salt is accumulated at potentials more negative than +50 mV. Currents obtained for MBT with the nickel(I1) method are much higher than those obtained previously with cysteine and penicillamine. Royal Society of Chemistry 1996-12 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/864/1/RazaliIsmail1996_ComparisonofIndirectCathodicStripping.pdf Fogg, Arnold G. and Ismail, Razali and Ahmad, Rahmalan and Banica, Florin G. (1996) Comparison of indirect cathodic stripping voltammetric methods based on accumulation of mercury, copper(I) and nickel salts or complexes at a hanging mercury drop electrode : determination of 2-mercaptobenzot h iazole. Analyst, 121 (12). pp. 1877-1879. ISSN 0003-2654 http://dx.doi.org/10.1039/AN9962101877 DOI:10.1039/AN9962101877
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Fogg, Arnold G.
Ismail, Razali
Ahmad, Rahmalan
Banica, Florin G.
Comparison of indirect cathodic stripping voltammetric methods based on accumulation of mercury, copper(I) and nickel salts or complexes at a hanging mercury drop electrode : determination of 2-mercaptobenzot h iazole
description A preliminary study of the indirect cathodic stripping voltammetric determination of 2-mercaptobenzothiazole (MBT) based on accumulation of its mercury, copper(1) and nickel(I1) salts or complexes was made as part of a wider study comparing these three related techniques of determining thiols. Detection limits for MBT using the copper@) and nickel(I1) methods ( c 2 X considerably lower than that for the mercury method (about 3 x lo-' moll-1). The mercury method is susceptible to interference from copper(I1) and large amounts of nickel(@, and seems generally to be less reliable for the determination of MBT. The change from accumulation as the mercury salt to accumulation as the copper(1) salt is illustrated in the presence of excess of MBT over copper(@ with increasing copper(I1) concentrations, and with change of accumulation potential to more negative values from +lo0 mV. In the presence of a stoichiometric amount or excess of copper(I1) over MBT, no mercury salt is accumulated at potentials more negative than +50 mV. Currents obtained for MBT with the nickel(I1) method are much higher than those obtained previously with cysteine and penicillamine.
format Article
author Fogg, Arnold G.
Ismail, Razali
Ahmad, Rahmalan
Banica, Florin G.
author_facet Fogg, Arnold G.
Ismail, Razali
Ahmad, Rahmalan
Banica, Florin G.
author_sort Fogg, Arnold G.
title Comparison of indirect cathodic stripping voltammetric methods based on accumulation of mercury, copper(I) and nickel salts or complexes at a hanging mercury drop electrode : determination of 2-mercaptobenzot h iazole
title_short Comparison of indirect cathodic stripping voltammetric methods based on accumulation of mercury, copper(I) and nickel salts or complexes at a hanging mercury drop electrode : determination of 2-mercaptobenzot h iazole
title_full Comparison of indirect cathodic stripping voltammetric methods based on accumulation of mercury, copper(I) and nickel salts or complexes at a hanging mercury drop electrode : determination of 2-mercaptobenzot h iazole
title_fullStr Comparison of indirect cathodic stripping voltammetric methods based on accumulation of mercury, copper(I) and nickel salts or complexes at a hanging mercury drop electrode : determination of 2-mercaptobenzot h iazole
title_full_unstemmed Comparison of indirect cathodic stripping voltammetric methods based on accumulation of mercury, copper(I) and nickel salts or complexes at a hanging mercury drop electrode : determination of 2-mercaptobenzot h iazole
title_sort comparison of indirect cathodic stripping voltammetric methods based on accumulation of mercury, copper(i) and nickel salts or complexes at a hanging mercury drop electrode : determination of 2-mercaptobenzot h iazole
publisher Royal Society of Chemistry
publishDate 1996
url http://eprints.utm.my/id/eprint/864/1/RazaliIsmail1996_ComparisonofIndirectCathodicStripping.pdf
http://eprints.utm.my/id/eprint/864/
http://dx.doi.org/10.1039/AN9962101877
_version_ 1643643202596503552
score 13.211869

Similar Items