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Determination of Nitrophenols in Drinking and River Water by Differential Pulse Voltammetry at Boron‐Doped Diamond Film Electrode
Author(s) -
Musilová Jana,
Barek Jiří,
Pecková Karolina
Publication year - 2011
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.201100016
Subject(s) - differential pulse voltammetry , detection limit , diamond , tap water , analytical chemistry (journal) , extraction (chemistry) , electrochemistry , electrode , materials science , voltammetry , chemistry , cyclic voltammetry , chromatography , environmental engineering , metallurgy , engineering
A differential pulse voltammetric method was developed for the determination of 2‐nitrophenol, 4‐nitrophenol and 2,4‐dinitrophenol at a boron‐doped diamond film electrode using electrochemical reduction and of 4‐nitrophenol and 2,4‐dinitrophenol using electrochemical oxidation. The method was successfully applied for the direct determination of these compounds in drinking and river water in the concentration range from 4×10 −7 to 2×10 −5 mol L −1 . To improve the limit of quantification, a preconcentration by solid phase extraction from 100 mL and 1000 mL of water samples was used with limit of determination around 2×10 −8 and 2×10 −7 mol L −1 , respectively.