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Standardless Electrochemical Method for Mercury, Cadmium, Lead and Copper Determination in Aqueous Solution
Author(s) -
Sheremet Anastasiya,
Averyaskina Elena,
Chekmeneva Elena,
Ermakov Sergey
Publication year - 2007
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.200703971
Subject(s) - cadmium , mercury (programming language) , aqueous solution , chemistry , coulometry , copper , metal ions in aqueous solution , atomic absorption spectroscopy , anodic stripping voltammetry , electrochemistry , inorganic chemistry , metal , analytical chemistry (journal) , standard addition , detection limit , chromatography , electrode , computer science , physics , organic chemistry , quantum mechanics , programming language
A standardless electrochemical method for metal ion determination in aqueous solution is proposed. This method is based on the combination of stripping voltammetry and controlled potential coulometry laws. Its application requires neither calibration using standard solutions nor standard additions to the studying solutions. The efficiency of the new method was examined using the detection of mercury, cadmium, copper and lead ions in aqueous media. The interference of metal ions was studied, and the determination of each metal ion was carried out in the presence of the others. The method was tested on samples of river water analyzed independently by atomic absorption spectrometry. A good agreement of the results was demonstrated.