Cetylpyridinium chloride micelle-mediated mutual separation of zinc, cadmium, and mercury ions by thin-layer chromatography

• Autorzy: Mohammad A. , Agrawal V. , Shahab H.
• Języki publikacji: EN

Abstrakty

EN

Cationic surfactant-mediated systems containing different concentrations of cetylpyridinium chloride have been used as mobile phases in thin-layer chromatographic separation of metal cations on silica layers. The effect of surfactant concentrations below and above the critical micelle concentration (CMC) on the retention behaviour of metal ions was examined. The best TLC system for rapid mutual separation of Zn2+, Cd2+, and Hg2+ was unmodified silica as stationary phase and 5% aqueous cetylpyridinium chloride as mobile phase. The effects of pH (acidity or basicity), inorganic electrolytes (the acetate, formate, chloride, bromide, and carbonate of sodium and the chloride and nitrate of calcium), and organic compounds (urea) in the cetylpyridinium chloride solution on the mobility and separation efficiency of Zn2+, Cd2+, and Hg2+ were assessed. The limits of detection for these metal cations were also determined. The method is well suited to identification and separation of Hg2+, Zn2+, and Cd2+ from synthetically prepared ores, for example cinnabar (HgS), zinc blende (ZnS), and greenoekite (CdS), and from hydroxide sludge.

• Wydawca: University of Silesia in Katowice ; Akademiai Kiado
• Czasopismo: Acta Chromatographica
• Rocznik: 2007
• Tom: No. 19
• Strony: 185--196
• Opis fizyczny: Bibliogr. 18 poz., rys., tab.

Twórcy

autor

Mohammad A.

autor

Agrawal V.

autor

Shahab H.

• Analytical Research Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, India

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