| 固相萃取与新银盐法联用测定水样中无机砷的形态 |
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| 引用本文： | 夏新泉,王丹蕾. 固相萃取与新银盐法联用测定水样中无机砷的形态[J]. 湖北师范学院学报(自然科学版), 2013, 0(2): 5-9 |
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| 作者姓名： | 夏新泉 王丹蕾 |
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| 作者单位： | 湖北师范学院化学与环境工程学院,湖北黄石435002 |
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| 摘 要： | 建立了活性碳负载APDC固相萃取与新银盐法联用分别测定水样中微量不同价态As(Ⅲ/Ⅴ)的新方法。实验表明:在pH为1.8～2.5的水溶液中,负载活性碳对As(Ⅲ)可选择性吸附,探讨了影响固相萃取的时间、酸度等主要因素,吸附率最高可达到90%,回收率大于90%.
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| 关 键 词： | 固相萃取 新银盐分光光度法 形态分析 无机砷 |
Coupling solid phase extraction with new spectrometry of silvery salt for speciation of inorganic arsenic in water samples |
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| XIA Xin-quan,WANG Dan-lei. Coupling solid phase extraction with new spectrometry of silvery salt for speciation of inorganic arsenic in water samples[J]. Journal of Hubei Normal University(Natural Science), 2013, 0(2): 5-9 |
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| Authors: | XIA Xin-quan WANG Dan-lei |
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| Affiliation: | (College of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, China) |
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| Abstract: | A method of coupling APDC modifiod activating solid phase extraction （SPE） with new spectrometry of silvery salt for speciafion of inorganic arsenic was established. Experiment showed that As （Ill） was selectively adsorbed by the modified activating carbon, and almost not As （V） at pH I. 8 - 2.5. Factors affecting modified activating carbon extracting was investigated, and the maxim adsorption rate was 90% with the recovery over 90%. |
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| Keywords: | SPE new spectrometry of silvery salt speciation inorganic arsenic |
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