摘要
本文研究了用VA 90气态原子化装置与AA 6 70原子吸收分光光度计联用测定食品、饮料中的微量砷。结果表明 :测定方法简单、快速、线性范围宽。本法的检出限为 2ng·L-1。回收率 87 5 %～ 115 % ,变异系数为 5 4%～ 6 1%。
A new method has been developed for the determination of trace metal As in health-giving drink by AA-670 atomic absorption spectrophotometry attached VA-90 atomization. The method is convenient to determine element in water. The results show that the method has good precision and accuracy. The detection limit is 2 ng(.)L(-1) for As. The relative standard deviation is 5.4%-6.1% , and the rates of recovery is 87.5%-115%. This method has been applied to the determination of health-giving drink with satisfactory results.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2001年第4期563-564,共2页
Spectroscopy and Spectral Analysis
