E3S Web of Conferences
Volume 1, 2013Proceedings of the 16th International Conference on Heavy Metals in the Environment
|Number of page(s)||2|
|Section||Analytical Chemistry II|
|Published online||23 April 2013|
Selective, Simple and Economical Method for the Voltammetric Determination of Bi(III) in the presence Cystine in Non – Complexing Solution
1 Department of Analytical Chemistry and Instrumental Analysis, Faculty of Chemistry, M. Curie–Skłodowska University, M. Curie–Skłodowska Sq. 3, 20-031 Lublin, Poland
2 Department of Instrumental Analysis, University of Łódź, Pomorska Sq. 163, 90-236 Łódź, Poland
The simple and fast method for the determination of Bi(III) in non-complexing solution was proposed. The catalytic activity of cystine on Bi(III) ions electroreduction process were utilized. The calibration graph of Bi(III) in 4 mol·dm−3 chlorate (VII) in the presence of 1·10−2 mol·dm−3 cystine is linear in the range of concentrations of Bi(III) from 7·10−7 to 4·10−5 mol·dm−3. The detection and quantification limits were found to be 1.2·10−7 mol·dm−3 and 4.02·10−7 mol·dm−3, respectively. Precision and recovery of the method were investigated by determination of Bi(III).
Key words: Bi (III) determination / cystine / square wave voltammetry
© Owned by the authors, published by EDP Sciences, 2013
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