氢化物发生原子荧光法同时测定丹参中痕量砷和锑

doi:10.3969/j.issn.1000-1565.2004.02.013

摘要/Abstract

摘要： 采用L-半胱氨酸做预还原剂,建立了氢化物发生原子荧光光谱法测定丹参中砷、锑含量的方法.研究了酸度、硼氢化钾浓度、L-半胱氨酸浓度等条件对原子荧光强度的影响.结果表明,在最佳工作条件下,砷、锑检出限分别为0.09μg/L和0.03μg/L;在取样量为1.000g时,砷、锑的检出限分别为1.13 ng/g和0.38ng/g.本方法操作简单、灵敏度高、分析速度快,适用于植物药材及其制剂中痕量砷、锑含量的检测.

关键词: L-半胱氨酸, 氢化物发生-原子荧光光谱法, 砷, 锑, 丹参

中图分类号:

O657

乔凤霞,孙汉文,闫宏远,锁然,李丽欣. 氢化物发生原子荧光法同时测定丹参中痕量砷和锑[J]. 河北大学学报(自然科学版), 2004, 24(2): 163-167.

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