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The Use of Silver Solid Amalgam Working Electrode for Determination of Nitrophenols by HPLC with Electrochemical Detection
Author(s) -
Danhel Ales,
Shiu Kwok Keung,
Yosypchuk Bogdan,
Barek Jiri,
Peckova Karolina,
Vyskocil Vlastimil
Publication year - 2009
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200804381
Subject(s) - amperometry , amalgam (chemistry) , electrode , working electrode , chromatography , high performance liquid chromatography , chemistry , materials science , nitrophenol , electrochemistry , detection limit , catalysis , biochemistry
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.