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Determination of Trace Manganese by Square‐Wave Stripping Voltammetry
Author(s) -
Wang Shujie,
Ye Baoxian
Publication year - 2008
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.200704136
Subject(s) - manganese , detection limit , analytical chemistry (journal) , stripping (fiber) , chemistry , voltammetry , mercury (programming language) , graphite furnace atomic absorption , square wave , anodic stripping voltammetry , relative standard deviation , buffer solution , electrode , materials science , electrochemistry , chromatography , voltage , physics , organic chemistry , quantum mechanics , computer science , composite material , programming language
A novel method of determining trace manganese by square‐wave stripping voltammetry with simultaneous plating mercury electrode is described in this paper. Well‐defined stripping peaks of manganese are obtained in H 3 BO 4 ‐NaOH buffer (pH 8.0) and peak currents are in good linear relationship with manganese concentrations in two ranges: from 0.36 nM to 36 nM and from 73 nM to 909 nM. The obtained detection limit is 0.18 nM and relative standard deviation is 2.3% ( n =7) under a predeposition time of 90 s. This proposed method has been used for the determination of trace manganese in real plasma samples with satisfiable results and good matching with the results of graphite furnace atomic absorption spectrometry.