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E-Journal of Chemistry, Vol. 01, No. 02, pp 99-104, April 2004,

Paper

DETERMINATION OF TRACE METALS WITH NEWLY SYNTHESISED CONIINE DITHIO CARBAMATE BY ATOMIC ABSORPTION SPECTROSCOPY (AAS)

 

K. Suvardhan, K. Suresh Kumar, K.M. Reddy, M.V.Jyothi,

and P. Chiranjeevi*

*Environmental Monitoring Laboratories,

 Dept. of Chemistry, S.V.University, Tirupati-517 502, A.P. India.

 

 E-mail : chiranjeevi_sai@yahoo.co.in

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Abstract:

A procedure is  developed for the determination of  Cd, Cu, Mo, Pb, Te and Ni in natural and spiked waters 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.