AFS-9700 dual channel atomic fluorescence spectrometer analysis techniques ,the establishment of a method for arsenic in groundwater samples,the simultaneous determination of selenium.After a series of exper-imental studies,the influence of the main reagents for sample determination,established the most fitness e-quipment parameters and configure the best standard series.Arsenic and selenium standard curve showed a good linearity,correlation coefficients were 0.999 5 or more,the intercept were 1.510 and -8.269.The relative standard deviation of 6.6% and 4.7%,recoveries between 95%-110%.This test uses different geographical groundwater samples in Liaoyang city ,the results show that the method has good feasibility and applicability.%利用AFS-9700原子荧光光度计双道分析技术, 建立了对地下水样品中的砷、 硒同时测定的方法. 经过一系列的试验研究, 分析了主要试剂对样品测定的影响, 确立了仪器参数的最适应值, 以及最佳标准系列的配置方法. 砷和硒的标准曲线呈现良好的线性, 相关系数均在0.9995以上, 截距分别为1.510和-8.269. 相对标准偏差为6.6%和4.7%, 回收率为95-110%之间. 本试验采用辽阳市不同地域地下水样品, 结果表明该方法具有良好的可行性和适用性.
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