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首页> 外文期刊>Journal of Polymers and the Environment >High-Performance Waste Cellulose Based Adsorbent Used for Determination of Ag(I) Coordination Anions
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High-Performance Waste Cellulose Based Adsorbent Used for Determination of Ag(I) Coordination Anions

机译：高性能废纤维素基吸附剂，用于测定Ag（I）配位阴离子

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摘要

Cellulose adsorbent containing hydrosulphonyl groups based on ammonia–thiosemicarbazide modified waste paper was synthesized (PWP-Cl-TSC). A simple and highly efficient separation/preconcentration procedure was developed for the determination of trace levels of coordination anions AgCl~(i)_(1−i)in perchloric samples via the PWP-Cl-TSC. The AgCl~(i)_(1−i)coordination anions in sample were adsorbed on the PWP-Cl-TSC packed into a micro-column and then eluted with thiourea (0.73 mol L_(−1))—HCl (0.2 mol L_(−1)). Under the optimal conditions, the analytical range was linear in the range of 0.02–0.2 μg mL_(−1). The detection limit and the precision of this method by flame atomic absorption spectrometry were 1.74 ng mL_(−1)and 6.48% (n = 8), respectively. The accuracy of the method was assessed using actual samples containing Ag(I), such as perchloric nickel electrolyte and groundwater in Lianhua Mountain districts. Moreover, PWP-Cl-TSC can be applied to identify the silver speciation due to its selectivity toward AgCl~(i)_(1−i)coordination anions.
机译：合成了基于氨水-硫代氨基脲改性废纸的含氢磺酰基的纤维素吸附剂（PWP-Cl-TSC）。建立了一种简单高效的分离/富集程序，用于通过PWP-Cl-TSC测定高氯酸样品中的痕量配位阴离子AgCl〜（i）_（1-i）。样品中的AgCl〜（i）_（1-i）配位阴离子被吸附在装在微柱中的PWP-Cl-TSC上，然后用硫脲（0.73 mol L _（-1））-HCl（0.2 mol L _（-1））。在最佳条件下，分析范围在0.02–0.2μgmL _（-1）范围内呈线性。火焰原子吸收光谱法测定该方法的检出限和精密度分别为1.74 ngmL _（-1）和6.48％（n = 8）。该方法的准确性是通过使用含有Ag（I）的实际样品（例如莲花山地区的高氯酸镍电解质和地下水）来评估的。此外，由于PWP-Cl-TSC对AgCl〜（i）_（1-i）配位阴离子具有选择性，因此可用于鉴定银的形态。

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  • 来源
    《Journal of Polymers and the Environment》 |2018年第6期|2650-2659|共10页
  • 作者

    Zhenning Lou; Siqi Wen; Li Wan; Peng Zhang; Yuejiao Wang; Feng Zhang; Ying Xiong; Yu Fan;

  • 作者单位

    Key Laboratory of Rare-Scattered Elements of Liaoning Province, College of Chemistry, Liaoning University;

    Key Laboratory of Rare-Scattered Elements of Liaoning Province, College of Chemistry, Liaoning University;

    Key Laboratory of Rare-Scattered Elements of Liaoning Province, College of Chemistry, Liaoning University;

    Key Laboratory of Rare-Scattered Elements of Liaoning Province, College of Chemistry, Liaoning University;

    Key Laboratory of Rare-Scattered Elements of Liaoning Province, College of Chemistry, Liaoning University;

    Key Laboratory of Rare-Scattered Elements of Liaoning Province, College of Chemistry, Liaoning University;

    Key Laboratory of Rare-Scattered Elements of Liaoning Province, College of Chemistry, Liaoning University;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Waste cellulose; Silver coordination anions; Determination; Solid extraction;

    机译：废纤维素;银配位阴离子;测定;固相萃取;

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