摘要
研究了氢化物原子荧光法测定临床样品全血、血清、胎盘、头发、指甲和尿液中微量Ａｓ和Ｓｅ的方法．线性范围为Ａｓ１．３×１０－９～２．５×１０－７ｇ／ｍＬ，Ｓｅ２．８×１０－１０～７．５×１０－８ｇ／ｍＬ；相对标准偏差（ｎ＝１３）Ａｓ２．６～３．６％，Ｓｅ２．８～４．２％；Ａｓ、Ｓｅ的标准加入回收率为９６．７～１０４．２％．用于６种临床样品中Ａｓ、Ｓｅ测定，获得满意的结果．
A hydride generation non dispersive atomic fluorescence spectrometry has been developed for the determination of trace arsenic and selenium in clinical samples seum,total blood,human placenta, hair, urine and nail.Under the optimum conditions,the allowable amounts of 24 coexist elements were determined.Linear calibration curves are obtained for As from 1 3×10 -9 to 2 5×10 -7 g/mL and Se from 2 8×10 -10 to 7 5×10 -8 g/mL.The relative standard deviations of 13 determinations are 2 6 3 6% for As and 2 8 4 2% for Se,and the recoveries of As and Se are 96 7 104 2%. This method has been used to determine As and Se in six kinds clinical samples with satisfactory results.
出处
《分析科学学报》
CAS
CSCD
1997年第4期312-315,共4页
Journal of Analytical Science
