银杏叶中有效铅的测定  

Determination on the Effective Lead in Ginkgo Biloba

作　　者：康永胜[1] 王孟歌[1] 

机构地区：[1]保定学院生化系,河北保定071000

出　　处：《河北化工》2012年第7期81-82,共2页Hebei Chemical Industry

摘　　要：采用氢化物发生-原子荧光法测定了银杏叶中的有效铅,考察了仪器的工作条件、酸介质浓度、载流浓度、硼氢化钾浓度等对原子荧光强度的影响。实验结果表明,银杏叶中有效铅的含量水平在0～0.002mg/L之间,加标回收率为87.50%～93.75%。The effective Lead of ginkgo biloba was determinated by hydride generaton-atomic fluorescence spectrometry. The factors that afected the fluorescence intensity of Pb was investigated,including the instrument conditions, medium concentration, current-carrying concentration and prereduetant etc. The results showed that the effective lead of ginkgo biloba was ranged from 0 to 0. 002μg/L and the recovery at three spiked levels were ranged from 87.50%-93.75%.

关 键 词：有效铅 氢化物发生 原子荧光光谱法 银杏叶 

分 类 号：O657.31[理学—分析化学]