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Selective Determination of Trace Copper by Extraction‐Anodic Stripping Voltammetry of Copper(II) Acetylacetonate in Nonaqueous Media
Author(s) -
PournaghiAzar M. H.,
Ramazani M. R.
Publication year - 2002
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/1521-4109(200209)14:17<1203::aid-elan1203>3.0.co;2-9
Subject(s) - copper , anodic stripping voltammetry , hanging mercury drop electrode , chemistry , detection limit , chloroform , mercury (programming language) , stripping (fiber) , voltammetry , trace amounts , electrode , analytical chemistry (journal) , inorganic chemistry , materials science , chromatography , electrochemistry , organic chemistry , composite material , medicine , alternative medicine , pathology , computer science , programming language
The anodic stripping voltammetry (ASV) for the determination of trace‐copper, present as copper(II) acetylacetonate, Cu(II)‐AA, was developed in chloroform, using the differential pulse technique to strip the amalgamated copper from the hanging mercury drop electrode (HMDE). The experimental variables such as scan rate of electrode potential, deposition potential, deposition time and stirring speed of the solution were optimized. The linear range of the calibration plot and the limit of detection were 5×10 −8 –10 −6 M and 1.4×10 −8 M, of Cu(II), respectively. Preceded by mineralization of the sample and solvent extraction of Cu(II)‐AA into chloroform, the method was used for the determination of copper in breast milk and beer as typical examples of application.