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Vol. 26 No. 13 (2014): Vol 26 Issue 13

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Solid Phase Extraction Preconcentration of Platinum with Microspheres Containing Octyl Benzothiazolyl Sulfoxide

https://doi.org/10.14233/ajchem.2014.15930
Yunsong Ge
Department of Chemistry, Yunnan University, Kunming 650091, P.R. China
Zhangjie Huang
Department of Chemistry, Yunnan University, Kunming 650091, P.R. China
Jing Chen
Department of Chemistry, Yunnan University, Kunming 650091, P.R. China
Wanqiu Liu
Department of Chemistry, Yunnan University, Kunming 650091, P.R. China

Corresponding Author(s) : Zhangjie Huang

zhjhuang@ynu.edu.cn

Asian Journal of Chemistry, Vol. 26 No. 13 (2014): Vol 26 Issue 13

Abstract

The extraction of platinum(IV) in hydrochloric acid medium was carried out using the microspheres containing octyl benzothiazolyl sulfoxide as the extractant. Adsorption capacities under optimum conditions were determined. According to the results, the optimum operating conditions for platinum extraction by the microspheres were octyl benzothiazolyl sulfoxide content = 35 % (w/w), hydrochloric acid concentration = 4.0 mol L-1 and contact time = 10 min. Under these optimum operating conditions, Pt(IV) ions adsorption capacities increased with increasing initial Pt(IV) ions concentration and it reached the maximum value at 39 mg g-1. Successful striping of Pt(IV) from the microspheres were achieved with 0.4 wt % sodium hydroxide solution. The microspheres can be reused at least in ten cycles of extraction-stripping process.

Keywords

Platinum Solid phase extraction Microspheres Octyl benzothiazolyl sulfoxide
Ge, Y., Huang, Z., Chen, J., & Liu, W. (2014). Solid Phase Extraction Preconcentration of Platinum with Microspheres Containing Octyl Benzothiazolyl Sulfoxide. Asian Journal of Chemistry, 26(13), 3795–3798. https://doi.org/10.14233/ajchem.2014.15930
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