ICEH Papers

DETERMINATION OF TRACE ELEMENT BY ATOMIC ABSORPTION SPECTROSCOPY (AAS) AFTER PRECONCENTRATION ON A SUPPORT IMPREGNATED WITH CONIINE DITHIOCARBAMATE


Suvardhan, K., K. Suresh Kumar, K.M. Reddy, P. Chiranjeevi “Determination Of Trace Element By Atomic Absorption Spectroscopy (Aas) After Preconcentration On A Support Impregnated With Coniine Dithiocarbamate” in Martin J. Bunch, V. Madha Suresh and T. Vasantha Kumaran, eds., Proceedings of the Third International Conference on Environment and Health, Chennai, India, 15-17 December, 2003. Chennai: Department of Geography, University of Madras and Faculty of Environmental Studies, York University. Pages 562 – 569.

Abstract:

A procedure is developed for the determination of Cd, Cu, Mo, Pb, Te and Ni in water by Atomic Absorption Spectroscopy (AAS) after preconcentration on a coniine dithiocarbamate supported by polyurethane. The sorbed elements are subsequently eluted with 5 mol L-1 HNO3 and the acid eluates are analysed by AAS. A 20 mL syringe served as a chromatographic preconcentration column. The sorption recoveries of elements were higher in the order of 99%. The method is also applied successfully for the determination of Cu, Cd, Mo, Pb, Te and Ni in natural and spiked water samples.

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