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Stripping Voltammetric Determination of As(III) in Natural Water Samples Containing Surface Active Compounds
Author(s) -
Grabarczyk Malgorzata
Publication year - 2010
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.201000056
Subject(s) - stripping (fiber) , detection limit , chemistry , cathodic stripping voltammetry , cationic polymerization , calibration curve , chromatography , analytical chemistry (journal) , linear range , electrode , voltammetry , nuclear chemistry , electrochemistry , materials science , organic chemistry , composite material
A cathodic stripping voltammetric method for determination of As(III) using Hg electrode in water samples containing high concentrations of surfactants is described. The linear calibration plot for As(III) was achieved in the simultaneous presence of 1 mg L −1 anionic, 2 mg L −1 cationic and 2 mg L −1 nonionic surfactants for an accumulation time of 30 s in the range 1×10 −8 to 1×10 −5 mol L −1 , the detection limit for accumulation time of 3 hours was about 2.6×10 −9 mol L −1 . The developed method was successfully applied to As(III) determination in five natural water samples with satisfactory results.