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目的:建立一种快速检测饮用水中微量砷和锑的方法。方法:应用氢化物-原子荧光分光光度法测定饮用水中微量砷和锑。结果:在经过优化的条件下,砷的检出限为0.012μg/L;回收率在97.1%~102.6%之间,相对标准偏差小于或等于1.0%。锑的检出限为0.015μg/L;回收率在95.4%~101.4%之间,相对标准偏差小于或等于0.8%。结论:方法操作更为简便、快速、准确、灵敏度高、仪器的性能稳定,便于推广使用。
Objective: To establish a rapid detection of trace amounts of arsenic and antimony in drinking water. Methods: Determination of trace arsenic and antimony in drinking water by hydride generation - atomic fluorescence spectrophotometry. Results: Under the optimal conditions, the detection limit of arsenic was 0.012 μg / L. The recoveries ranged from 97.1% to 102.6% with relative standard deviations less than or equal to 1.0%. The detection limit of antimony was 0.015μg / L; the recoveries ranged from 95.4% to 101.4% with the relative standard deviations less than or equal to 0.8%. Conclusion: The method is simple, rapid, accurate and sensitive. The performance of the instrument is stable and easy to popularize.