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Indexed by:期刊论文

Date of Publication:2003-04-01

Journal:ANALYTICAL SCIENCES

Included Journals:Scopus、SCIE、PubMed

Volume:19

Issue:4

Page Number:607-609

ISSN No.:0910-6340

Abstract:Based on the adsorption of Fe(EDTA)(-) on a chitosan-coated glassy carbon electrode, a second-derivative square-wave voltammetry for the determination of the EDTA species in water samples was investigated. The measuring range of EDTA was from 6.0 x 10(-7) to 5.0 x 10(-5) mol/L with a correlation coefficient of 0.998 and a detection limit of 2.8 x 10(-7) mol/L. The relative standard deviation was less than 6.2% (n = 5) and the recovery was in the range of 98 - 105% for the determination of practical samples. The result was consistent with that from the HPLC method.