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Determination of Selenium with a Poly(1,8‐diamino‐naphthalene)‐Modified Electrode
Author(s) -
Won MiSook,
Yoon JangHee,
Shim YoonBo
Publication year - 2005
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.200503303
Subject(s) - anodic stripping voltammetry , detection limit , electrode , stripping (fiber) , certified reference materials , voltammetry , chemistry , selenium , cyclic voltammetry , aqueous solution , differential pulse voltammetry , analytical chemistry (journal) , chromatography , materials science , electrochemistry , organic chemistry , composite material
Abstract The performance of a poly(1,8‐diaminonaphthalene)‐modified electrode for the determination of the Se(IV) ion in an aqueous medium was investigated with anodic stripping voltammetry without the pretreating of the sample. The experimental parameters for the analysis of Se(IV) were optimized and the characteristics of this polymer‐modified electrode were investigated by using cyclic voltammetry. The Se(IV) ions were chemically deposited onto the surface of the pDAN‐Au electrode in an acidic medium. The detection limit employing the anodic stripping differential pulse voltammetry was 9.0×10 −9 M for Se(IV) with 4.4 % of RSD. Satisfactory result for the determination of Se(IV) was acquired employing a certified standard urine reference material, SRM's 2670 (trace element in urine) with 4.1 ppb of SD.