摘要
本文提出以浓硝酸冷浸非全消化法,加OP乳化剂作稳定剂,悬浮液进样法,石墨炉原子吸收测定人发中痕量铬,取得了满意的结果。回收率为93～98%。
The Conditions for determining chromium in human hair .by GFAAS.and a new method for digesting human hair have been studied. The conventional complete digestion method may result in the loss of chromium. A new method is proposed to form a suspension by soaking the hair with HNO_3,adding surfactant to stabilize the colloid and then chromium content in the suspension solution is determined. The results are satisfactory. This method is simple and rapid, with recovery of 93～98% and high sensitivity.
出处
《分析试验室》
CAS
CSCD
北大核心
1992年第3期43-44,共2页
Chinese Journal of Analysis Laboratory
关键词
铬
毛发
石墨炉AAS
GFAAS
human hair analysis
chromium determination
sample introduction
