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Determination of Lead(II) in Liver Corpse of a Slaughtered Cattle with Preconcentration on a Chelating Sorbent

Determination of Lead(II) in Liver Corpse of a Slaughtered Cattle with Preconcentration on a Chelating Sorbent
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摘要 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<sup>+</sup>K</sub>= 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: рН<sub>opt.</sub> = 5, ionic force μ = 0.8 pier/l, full sorption balance 4 hours, optimum eluent 5 ml of 0.5 M HCl. 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<sup>+</sup>K</sub>= 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: рН<sub>opt.</sub> = 5, ionic force μ = 0.8 pier/l, full sorption balance 4 hours, optimum eluent 5 ml of 0.5 M HCl.
作者 R. A. Aliyeva N. S. Huseynova Ulviya M. Abilova G. B. İskandarov F. M. Chiragov R. A. Aliyeva;N. S. Huseynova;Ulviya M. Abilova;G. B. İskandarov;F. M. Chiragov(Department of Analytical Chemistry, Faculty of Chemistry, Baku State University, Baku, Azerbaijan;Department of the General and Toxicological Chemistry, Faculty of Pharmacology, Azerbaijan Medical University, Baku, Azerbaijan)
出处 《American Journal of Analytical Chemistry》 2016年第8期617-622,共7页 美国分析化学(英文)
关键词 Sorption Capacity PRECONCENTRATION Polymeric Sorbate Lead(II) Sorption Capacity Preconcentration Polymeric Sorbate Lead(II)
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