摘要
对于生物体中硒的测定,国内外已有大量报道,所用方法也相当广泛。本文利用石墨炉原子吸收对人发中硒的测定进行了研究;对使用较多的两种硒的基体改进剂:铜与镍的作用与效果进行了研究,发现铜较镍在某些方面更为优越。当选用100 μg/mL的铜作改进剂时,硒的特征浓度为0.13 ng/1％abs,测定精度为3.4％～5.4％;线性范围达400 ng。
The trace element Se in human hair was determined by ETAAS. The effect of the different matrix modifiers is discussed. The mechanism of the matrix modifier in the graphite furnace was studied by means of surface analysis of the graphite cup by X-ray photbelectron spectroscopy.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第11期1139-1141,共3页
Chemical Journal of Chinese Universities
