摘要
本文采用镍－硝酸镁作基体改进剂，用石墨炉原子吸收法测定人红细胞膜结合硒，并对该方法进行了研究探索。在选定的实验条件下，该方法特征质量为１６．０ｐｇ／０．００４４Ａ．Ｓ，检出限为７．４ｐｇ。回收率为９２％－１０８％，相对标准偏差为８．９％，１０种共存元素含量在正常生理浓度范围内不干扰测定。经对样品测试分析，证明本方法准确、快速，满足分析要求。
A method for determination of binding selenium in human red erythrocyte membrane with Ni and Mg (NO_3)_2 as matrix modifier in graphite furnace AAS is described. Under the optimum condition,the characteristic mass m is 16. 0pg/0. 0044A. S,the detection limit is 7.4pg,the recovery is 92%-108 % ,the ralative standard deviation is less than 8. 9%.10 elements do not interfere with the determination of Se. The method had been used to analyse practical samples ,satisfactory results are obtained. It is simple and rapid.
出处
《光谱实验室》
CAS
CSCD
1996年第2期20-23,共4页
Chinese Journal of Spectroscopy Laboratory
关键词
原子吸收法
红细胞膜
硒
Graphite Furnace Atomic Absorption Spectrometry, Red Erythrocyte Membrane,Selenium.
