摘要
本文研究了茶叶中锌、铜、锰微量金属元素的火焰原子吸收分光光度法的测定。方法简便、快速，灵敏度和精密度高，特征浓度锌为０．００９μｇ／ｍＬ／１％，铜为０．０３１μｇ／ｍＬ／１％，锰为０．０１７μｇ／ｍＬ／１％；相对标准偏差为０．９％～５．０％，回收率９２．０％～１０６．０％。
This paper reports the determination of trace metals Zn,Cu and Mn in tea by flame atomic absorption spectrophotometry.The method is simple and rapid with good precision and accuracy.The characteristic concentration is 0 009 μg/mL/1 % for Zn,0 031 μg/mL/1 % for Cu and 0 017 μg/mL/1% for Mn,respectively.The relative standard deviation is between 0 9% and 5 0%.The recovery rate is between 92 0% and 106 0%.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1999年第3期408-410,共3页
Spectroscopy and Spectral Analysis
关键词
火焰原子吸收法
茶叶
锌
铜
锰
测定
Flame atomic absorption spectrophotometry, Tea, Zinc, Copper, Manganese
