摘要
悬浮液进样-原子吸收光谱法测定茶叶中铜,样品经烘干、研磨、过筛配置琼脂悬浮液,直接喷入空气-乙炔火焰测定。本法测定加标回收率为98.3%～100.3%,方法的RSD小于2.5%(n=6),检测限为0.038μg/ml。
Fast determination of copper in tea by suspension sample introduction-flame atomic absorption spectrometry(FAAS). Samples were dried by the oven, ground down, sieved and made into agar suspension, to be injected into air-acetyleneflame for determination. Recoveries of standard addition were 98.3%～100.3%, RSD was less than 2.5%(n=6) and the detectionlimit was 0.038μg/ml.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2004年第9期157-159,共3页
Food Science
关键词
悬浮液进样-原子吸收光度法
测定方法
茶叶
铜含量
suspension sample introduction
flame atomic absorption spectrometry(FAAS)
tea
copper
