流动注射氢化物发生原子吸收光谱法测定多种微量元素注射液中硒含量

Determination of selenium in multi-trace elements injection by flow injection hydride generation atomic absorption spectrometry

目的建立多种微量元素注射液Ⅰ和Ⅱ中硒的测定方法.方法供试品经25%盐酸溶液稀释,采用流动注射氢化物发生原子吸收分光光度法测定硒含量.结果本法检出限为0.30μg·L-1,方法的线性范围为0～40μg·L-1,回收率分别为96%～99%,变异系数RSD<3%.结论该方法操作简便、快速、灵敏、单次测定样品量大,可以用于多种微量元素注射液中硒的质量控制.

Objective To establish a method for the determination of selenium in multi-trace elements injection Ⅰ and Ⅱ.Methods The sample that was diluted by 25% HCl was determined by the flow injection hydride generation atomic absorption spectrometry.Results The detection limit of this method was 0.30 μg·L-1,the linear range was 0~40 μg·L-1 and the recovery was in the range of 90%~99%,RSD〈3 %.Conclusion The method was simple,rapid,sensitive and had a large quantity of samples determined at one time,and it can be used for the quality control of selenium in multi-trace elements injection.