%0 Journal Article %T Selective Determination of Trace-Bismuth by Extraction-Differential Pulse Polarography in Non-Aqueous Media %J Iranian Journal of Chemistry and Chemical Engineering %I Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR %Z 1021-9986 %D 2001 %\ 12/01/2001 %V 20 %N 2 %P 59-65 %! Selective Determination of Trace-Bismuth by Extraction-Differential Pulse Polarography in Non-Aqueous Media %K Voltammetry in chloroform %K Bismuth(III) oxinate %K Chloroform %K Aluminum %K Differential pulse polarography %K Bismuth determination %R 10.30492/ijcce.2001.9971 %X The voltammetric characteristics of bismuth(III)-oxinate in chloroform at the mercury electrode were investigated and a quasi-reversible behavior for Bi(III) oxinate reduction was confirmed. Preceded by the extraction of Bi(III) oxinate in chloroform, differential pulse polarography was developed in the extracts for determination of the trace-bismuth. The linear range of the calibration graph and the detection limit respectively were: 1´10-6 -5´10-5 and 4.7´10-7 M of Bi(III). Suitability and accuracy of the proposed method for determination of trace-bismuth was established by the analysis of a metallic aluminum sample.   %U https://ijcce.ac.ir/article_9971_d79d426fa1a46f24492b40f4a3cc28d2.pdf