Journal
ELECTROANALYSIS
Volume 21, Issue 3-5, Pages 303-308Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.200804381
Keywords
HPLC; Amperometric detection; Thin-layer; Wall-jet; Silver solid amalgam; Plant growth regulators; Nitrophenols
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Funding
- Ministry of Education, Youth and Sports of the Czech Republic [LC 06035, MSM 0021620857]
- GACR [203/07/1195, 203/07/P261]
- GAUK [6107/2007/B-Ch/PrF]
- Croucher Foundation
- Faculty of Science, Hong Kong Baptist University
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The use of a silver solid amalgam working electrode for HPLC with electrochemical detection has been investigated. The thin-layer and wall-jet detectors based on this electrode were constructed and applied for the determination of a mixture of nitrophenols. The optimal separation and detection conditions for the determination of 2-nitrophenol, 4-nitrophenol, 2,4-dinitrophenol and 2-methoxy-5-nitrophenol in mixture were found using RP-HPLC at Nova-Pack C18 column and amperometric detection with the above mentioned detectors. It has been proved that the silver solid amalgam electrode is a suitable working electrode for HPLC-ED and provides sufficient sensitivity for determination of tested nitrophenols.
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