Solid Phase Extraction of Trace Amounts of Praseodymium Using Transcarpathian Clinoptilolite

Olha Stashkiv; Volodymyr Vasylechko; Galyna Gryshchouk; Ihor Patsay

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Solid Phase Extraction of Trace Amounts of Praseodymium Using Transcarpathian Clinoptilolite

机译：用Transcarpathian Clinophogolite使用Transcarpathian Clinophogolite的固体相提取痕量镨

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Sorptive properties of the Transcarpathian clinoptilolite towards Pr(III) were studied under dynamic conditions. The sorption capacity of clinoptilolite under optimal conditions (sorbent grain diameter of 0.20–0.31 mm; pH 9.0, temperature of preliminary precalcination of 350 °C, and flow rate of the Pr(III) salt solution with the concentration of 1.0 μg·mL?1 through the sorbent of 5 mL·min?1) was equal to 47.5 mg·g?1. The best desorbent of Pr from the clinoptilolite was the 1 M solution of KCl acidified with HCl to a pH value of 3.0. The method of Pr(III) trace amounts preconcentration in a solid phase extraction mode with further determination of this REE via spectrophotometric technique was developed. The linearity of the proposed method was evaluated in the range of 2–100 ng·mL?1 with detection limit of 0.7 ng·mL?1.

机译：在动态条件下研究了对Pr（III）的转基地肺炎杆菌石的吸附特性。在最佳条件下临床的吸附能力（吸附剂粒径为0.20-0.31mm; pH9.0，温度初始预煅烧350℃，以及PR（III）盐溶液的流速，浓度为1.0μg·mL？通过5ml·min？1的吸附剂等于47.5mg·g≤1。来自Clinopholegolite的PR的最佳解吸剂是用HCl酸化的1M溶液酸化至pH值为3.0。通过分光光度法，开发了PR（III）痕量痕量的预浓度在固相萃取模式下进行预浓度，通过分光光度法进行进一步测定该REE。所提出的方法的线性在2-100ng·ml·1的范围内评价，检测限为0.7ng·ml·1。

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《Colloids and Interfaces》 |2019年第1期|共10页
作者
Olha Stashkiv; Volodymyr Vasylechko; Galyna Gryshchouk; Ihor Patsay;
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中图分类物理学;
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preconcentrationsorptionlanthanidenatural zeolite;

机译：预融化卟啉沸石沸石;

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Solid Phase Extraction of Trace Amounts of Praseodymium Using Transcarpathian Clinoptilolite

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