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The determination of organochlorine compounds by adsorptive stripping voltammetry, part I: p , p ′‐DDT and dieldrin
Author(s) -
Li Chiang,
James Bruce D.,
Magee Robert J.
Publication year - 1990
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.1140020112
Subject(s) - dieldrin , chemistry , adsorptive stripping voltammetry , stripping (fiber) , chromatography , voltammetry , organochlorine pesticide , relative standard deviation , environmental chemistry , detection limit , pesticide , electrochemistry , electrode , materials science , biology , composite material , agronomy
The environmentally persistent pesticides p , p ′‐DDT and dieldrin may be determined simultaneously using an indirect adsorptive stripping voltammetric procedure that takes advantage of the very different binding capabilities of the two materials toward added iron(II). The method has been applied to the determination of these organochlorines in Australian bovine fat samples by employing benzyltrimethylammonium methoxide as a digestion medium. The limits of detection are 0.4 ppb (for p , p ′‐DDT) and 0.7 ppb (for dieldrin), and the relative standard deviations (for 10 determinations) are 7.4 and 10.1%, respectively.