TITLE:
Determination of Lead(II) in Liver Corpse of a Slaughtered Cattle with Preconcentration on a Chelating Sorbent
AUTHORS:
R. A. Aliyeva, N. S. Huseynova, Ulviya M. Abilova, G. B. İskandarov, F. M. Chiragov
KEYWORDS:
Sorption Capacity, Preconcentration, Polymeric Sorbate, Lead(II)
JOURNAL NAME:
American Journal of Analytical Chemistry,
Vol.7 No.8,
August
8,
2016
ABSTRACT: The copolymer of the maleic anhydride-styrene is modified at the presence of 4-amino-2-thiouracil and formaldehyde and the new polymeric sorbate with spatial structure is received. The received sorbate is identified by the IR-spectroscopy method. The complete static sorption capacitance was studied (CSSC+K= 7.8 mmol/g) and the ionization constants of ionic groups in a sorbate link was defined by electrometric method. Ionization constants were determined by potentiometric titration of the sorbent (). Sorption and desorption of the received sorbent with a lead ion (II) are investigated and optimum concentration conditions are defined: рНopt. = 5, ionic force μ = 0.8 pier/l, full sorption balance 4 hours, optimum eluent 5 ml of 0.5 M HCl.