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本文研究了氢化物发生无色散原子荧光光谱法直接测定有机相中痕量硒的方法。确定了各项最佳测量条件,采用DDTC络合硒,冰乙酸调节有机相酸度,比较了不同萃取剂的效果。文中还讨论了干扰效应及克服干扰的办法,分析结果与水溶液氢化物法一致。
In this paper, a method for the direct determination of trace selenium in organic phase by hydride generation atomic fluorescence spectrometry has been studied. The best measuring conditions were determined. DDTC complexed selenium and glacial acetic acid were used to adjust the acidity of the organic phase, and the effects of different extractants were compared. The paper also discusses the interference effect and the way to overcome the interference. The analysis result is consistent with the aqueous solution hydride method.