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Direct and Simultaneous Determination of Phenol, Hydroquinone and Nitrophenol at Boron‐Doped Diamond Film Electrode
Author(s) -
ZHAO GuoHua,
TANG YiTing,
LIU MeiChuan,
LEI YanZhu,
XIAO XiaoE
Publication year - 2007
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200790267
Subject(s) - chemistry , hydroquinone , phenol , electrode , differential pulse voltammetry , diamond , electrochemistry , nitrophenol , boron , pollutant , detection limit , cyclic voltammetry , analytical chemistry (journal) , inorganic chemistry , nuclear chemistry , chromatography , organic chemistry , catalysis
Abstract The electrochemical characteristics of multi‐component phenolic pollutants, such as phenol (Ph), hydroquinone (HQ) and 4‐nitrophenol (4‐NP), were investigated on boron‐doped diamond (BDD) film electrode by differential pulse voltammetry (DPV) technique. A simple and feasible platform was accordingly established for the direct and simultaneous determination of these three phenolic pollutants. Results showed that, Ph, HQ and 4‐NP gave obvious oxidation peaks on BDD electrode at the potential of 1.24, 0.76 and 1.52 V, respectively. Each of them displayed good linear relationship between their oxidation peak currents and their corresponding concentrations in a rather wide range coexisting with one or two of the other phenolic pollutants. The detection limits of Ph, HQ and 4‐NP were estimated to be as low as 1.82×10 −6 , 1.67×10 −6 and 1.44×10 −6 mol·L −1 , respectively. Therefore, a promising direct and simultaneous electrochemical determination method of multi‐component phenolic pollutants in wastewater samples was constructed successfully on BDD electrode with advantages being rapid, simple, convenient, sensitive, in situ and inexpensive.