Improved Electroanalytical Characteristics for Flumetralin Determination in the Presence of Surface Active Compound

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39911388" target="_blank" >RIV/00216275:25310/17:39911388 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/content/pdf/10.1007%2Fs00706-017-1918-8.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1007%2Fs00706-017-1918-8.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00706-017-1918-8" target="_blank" >10.1007/s00706-017-1918-8</a>

Result language
angličtina
Original language name
Improved Electroanalytical Characteristics for Flumetralin Determination in the Presence of Surface Active Compound
Original language description
The use of square wave voltammetry (SWV) and square wave adsorptive stripping voltammetry (SWAdSV) in conjunction with a cyclic renewable silver amalgam film electrode for the determination of flumetralin is presented. Poor separation of two overlapped reduction peaks is significantly improved when hexadecyltrimethylammonium bromide is used as a component of the supporting electrolyte solution (together with BR buffer pH 9.5). The SW technique parameters were investigated and found optimal as follows: frequency 50 Hz, amplitude 40 mV, and step potential 5 mV. Accumulation time and potential were studied to select the optimal conditions in adsorptive voltammetry. The analytical curve was linear for the flumetralin concentration range from 1.0x10(-6) to 1.0x10(-5) mol dm(-3) and from 5.0x10(-9) to 1.0x10(-7) mol dm(-3) for SWV and SWAdSV, respectively. Detection limit of 6.5x10(-10) mol dm(-3) was calculated for accumulation time 60 s at -0.2 V. The repeatability of the method was determined at a flumetralin concentration level equal to 5.0x10(-9) mol dm(-3) and expressed as % RSD = 5.0% (n = 6). The proposed method was applied and validated successfully by studying the recovery of herbicide content in spiked environmental samples.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10406 - Analytical chemistry

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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