Sensitive voltammetric method for determination of herbicide metribuzin using silver solid amalgam electrode

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F16%3A39901441" target="_blank" >RIV/00216275:25310/16:39901441 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s00706-015-1555-z" target="_blank" >http://dx.doi.org/10.1007/s00706-015-1555-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00706-015-1555-z" target="_blank" >10.1007/s00706-015-1555-z</a>

Result language

angličtina

Original language name

Sensitive voltammetric method for determination of herbicide metribuzin using silver solid amalgam electrode

Original language description

New sensitive voltammetric method for determination of triazinone herbicide metribuzin (MTZ) was developed employing polished and mercury meniscus-modified silver solid amalgam electrode (p-, m-AgSAE). MTZ yielded two reduction signals on both used working electrodes in acidic and slightly acidic media and the positively situated peak [at about -650 mV vs. Ag|AgCl|KCl (sat.)] was found suitable for further analytical measurements. The highest responses were recorded in Britton-Robinson buffer of pH 2 (p-AgSAE) or 3 (m-AgSAE). Various voltammetric techniques like cyclic, linear sweep, and differential pulse voltammetry were used for examination of the voltammetric behavior of MTZ. Parameters of differential pulse voltammetry were optimized and low detection limits were reached (LODm-AgSAE = 6.0 x 10(-8) mol dm(-3) and LODp-AgSAE = 7.5 x 10(-8) mol dm(-3)). Moreover, excellent repeatability of determination and measurements as well was confirmed by low values of relative standard deviations of five repeated determinations [RSD (5) a parts per thousand currency sign 6.0 %] and of 11 repeated measurements [RSD (11) a parts per thousand currency sign 4.5 %], respectively. Finally, practical applicability of newly proposed methods was verified by the analysis of spiked tap and river water and by determination of MTZ in pesticide preparation with excellent results. All the obtained results were compared with those gained for classic mercury electrode.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Monatshefte fur Chemie

ISSN

0026-9247

e-ISSN

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Volume of the periodical

147

Issue of the periodical within the volume

1

Country of publishing house

AT - AUSTRIA

Number of pages

11

Pages from-to

219-229

UT code for WoS article

000367521400028

EID of the result in the Scopus database

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