【摘要】 本文研究了氢化物－无色散原子荧光法同时测定钢铁中痕量硒和碲。采用离子交换法消除了阳离子干扰。在４０％（Ｖ／Ｖ）盐酸介质测定硒和碲，方法检出限分别为０．２７和０．３３ｎｇ／ｍＬ，相对标准偏差分别为６．９９和６．１１％，回收率在９６．７～１０２．０％之间。更多还原

【Abstract】 A method was developed for the determination of trace Se and Te in steel by ion exchange separation hydride generation nondispersive atomic fluorescence spectrometry.40%(V/V) chlorhydric acid was selected as the best medium for hydride reaction.The detection limits of Se and Te are 0 27 and 0 33 ng/mL,relative standard deviations are 6 99 and 6 11%,respectively.The recovery was in the range of 96 7—102 0%.The results are satisfactory.更多还原