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首页> 外文期刊>Journal of analytical chemistry >Sorption-spectroscopy and test determination of uranium(VI) and iron(III) from a single sample on the solid phase of fiber materials filled with an AB-17 ion exchanger
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Sorption-spectroscopy and test determination of uranium(VI) and iron(III) from a single sample on the solid phase of fiber materials filled with an AB-17 ion exchanger

机译:从填充有AB-17离子交换剂的纤维材料的固相上的单个样品进行吸附光谱法和铀(VI)和铁(III)的测试测定

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摘要

Diffuse reflectance spectroscopy has been used for the study of the sorption of malonate and glycolate complexes of uranium(VI) and iron(III), present simultaneously in solution, onto the solid phase of fiber materials filled with an AB-17 anion exchanger. In the form of malonate complexes uranium(VI) is determined in 0.5 M HCl on substrate discs with immobilized Arsenazo III, while iron(III) is determined on substrate discs with potassium thiocyanate in 0.5 M HCl. The dependence of the analytical signals on the concentrations of U(VI) and Fe(III) is linear in the ranges 0.02-0.16 μg/mL; the detection limit is 0.01 μg/mL. The possibility of analysis of U(VI) and Fe(III) mixtures in ratio from 1: 5 to 5: 1 in the presence of 2-fold concentrations of Zr(IV), Th(IV), and Ti(IV), 5-fold concentrations of Bi(III), 10-fold concentrations of Cu(II), 20-fold concentrations of La(III), 100-fold concentrations of Ni(II) and Zn(II), and 200-fold concentrations of Co(II) and Ca(II) has been demonstrated. Standard color scales in the concentration range from 0.02 to 0.2 μg/mL have been used for the visual determination of uranium(VI) and iron(III).
机译:漫反射光谱法已用于研究溶液中同时存在的铀(VI)和铁(III)的丙二酸酯和乙醇酸酯络合物在填充有AB-17阴离子交换剂的纤维材料固相上的吸附。以丙二酸酯络合物的形式,在固定有Arsenazo III的底盘上,在0.5 M HCl中测定铀(VI),而在0.5 M HCl中,用硫氰酸钾测定底盘上的铁(III)。在0.02-0.16μg/ mL范围内,分析信号对U(VI)和Fe(III)的浓度呈线性关系。检出限为0.01μg/ mL。在存在2倍浓度的Zr(IV),Th(IV)和Ti(IV)的情况下,以1:5至5:1的比例分析U(VI)和Fe(III)混合物的可能性, Bi(III)浓度为5倍,Cu(II)浓度为10倍,La(III)浓度为20倍,Ni(II)和Zn(II)浓度为100倍,浓度为200倍Co(II)和Ca(II)的合成已得到证明。浓度范围为0.02至0.2μg/ mL的标准色标已用于肉眼测定铀(VI)和铁(III)。

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