【摘要】 <正> 砷分族元素,尤其是砷、锑具有易挥发、难激发的特性,经典发射光谱法测定灵敏度低,近年来有用氢化反应-原子吸收测定砷分族,锗分族及硒碲的报告,该法灵敏度高,但只能作单元素测定。ICP-AES氢化法改善了经典发射光谱及原子吸收法之不足,是高灵敏度同时测定上述元素的有效方法。本文用国产仪器研究了ICP-AES连续氢化法测定砷分族元素时,影响谱线强度的诸因更多还原

【Abstract】 The factors affecting line intensity in the determination of arsenic group elements. with ICP-AES have been investigated by using a instrument made in China, and the optimization for determining arsenic groiip elements has been attained. The relative standard deviation based on 10 determinations are 6. 3% and 2. 0% for arsenic, 5. 3% and 6. 2% for antimony, 8. 3% and 3. 6% for bismuth, when injection rate of tested solution is 5 nit min^-1（the maximal rate for peristaltic pump）and their concentrations are 0. 05μg ml^-1and 1. OμgMl^-1respectively.更多还原