title: Co-precipitative pre-concentration with sodium diethyldithiocarbamate and ICP-AES determination of Se, Cu, Pb, Zn, Fe, Co, Ni, Mn, Cr and Cd in water.
abstract: Sodium diethyldithiocarbamate in the presence of a weak oxidizing agent is used as a co-precipitative agent for the pre-concentration of Se, Cu, Pb, Zn, Fe, Co, Ni, Mn, Cr and Cd. A procedure was developed for ICP-AES determination of these elements after pre-concentration in river and waste water (an enrichment factor of 40). The recovery of all the elements tested for was more than 98%. The limits of determination (mg l(-1)) (10 S.D. blank) are 0.001 (Cu, Co, Cr, Mn), 0.0007 (Zn, Cd), 0.003 (Se), 0.004 (Fe), 0.007 (Ni), and 0.01 (Pb).
authors.affiliation: Centre of Analytical Chemistry and Applied Spectroscopy, Plovdiv University, 24 Tsar Assen Steet, 4000 Plovdiv, Bulgaria.
authors.forename: D
authors.initials: D
authors.lastname: Atanassova
authors.forename: V
authors.initials: V
authors.lastname: Stefanova
authors.forename: E
authors.initials: E
authors.lastname: Russeva