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    胥艳, 刘杰英, 张雪杰, 姜童祥, 李海涛, 巩飚, 杨如璞. 智能样品处理器消解-原子荧光光谱法测定生活饮用水中微量硒[J]. 环境卫生学杂志, 2016, 6(3): 237-241. DOI: 10.13421/j.cnki.hjwsxzz.2016.03.016
    引用本文: 胥艳, 刘杰英, 张雪杰, 姜童祥, 李海涛, 巩飚, 杨如璞. 智能样品处理器消解-原子荧光光谱法测定生活饮用水中微量硒[J]. 环境卫生学杂志, 2016, 6(3): 237-241. DOI: 10.13421/j.cnki.hjwsxzz.2016.03.016
    shu
    XU Yan, LIU Jieying, ZHANG Xuejie, JIANG Tongxiang, LI Haitao, GONG Biao, YANG Rupu. Trace Selenium Detection in Drinking Water by Intelligent Sample Processor Digestion and Hydride Generation-AFS[J]. Journal of Environmental Hygiene, 2016, 6(3): 237-241. DOI: 10.13421/j.cnki.hjwsxzz.2016.03.016
    Citation: XU Yan, LIU Jieying, ZHANG Xuejie, JIANG Tongxiang, LI Haitao, GONG Biao, YANG Rupu. Trace Selenium Detection in Drinking Water by Intelligent Sample Processor Digestion and Hydride Generation-AFS[J]. Journal of Environmental Hygiene, 2016, 6(3): 237-241. DOI: 10.13421/j.cnki.hjwsxzz.2016.03.016
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    智能样品处理器消解-原子荧光光谱法测定生活饮用水中微量硒

    Trace Selenium Detection in Drinking Water by Intelligent Sample Processor Digestion and Hydride Generation-AFS

      摘要
    • 摘要:
      目的  建立智能样品处理器消解、氢化物发生-原子荧光法测定生活饮用水中硒的分析方法。
      方法  以智能样品处理器对水样进行前处理，对智能处理器消解参数、仪器条件、还原剂浓度、载流浓度和铁氰化钾掩蔽效果等试验条件进行研究和优化；在最佳条件下，采用原子荧光法进行测定。
      结果  硒标准曲线的回归方程为If=71.88c+1.575，方法的检出限为0.033μg/L，在0.033μg/L～50μg/L线性关系良好，相关系数r=0.9999。方法加标回收率为94.0%～102%，相对标准偏差（RSD）为0.8%～2.2%。
      结论  该方法操作简便，安全，快速，精密度、准确度较高，适用于生活饮用水中微量硒的测定。

       

      Abstract:
      Objective  To advance an analytical method for the determination of selenium (Se) in drinking water by intelligent sample processor digestion and hydride generation-atomic fluorescence spectrometry.
      Methods  The experimental condition, such as the digestion parameter of the intelligent sample processor, instrument parameters, the concentration of reducing agent, the concentration of carrier and the masking effect of potassium ferricyanide, were investigated and optimized. Samples were pretreated by intelligent sample processor digestion under optimized condition and the digested sample was determined by atomic fluorescence spectrometry.
      Results  The regression equation of the standard curve for Se was If=71.88c+1.575. The linear range was 0.033 μg/L~50 μg/L,the correlation coefficient was 0.9999, the detection limit was 0.033μg/L, the recovery was 94.0%~102%, and the relative standard deviations(RSD) of the method was 0.8%~2.2%.
      Conclusion  The method was convenient, safe, rapid, accurate, reliable and suitable for the determination of Se in drinking-water.

       

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