巯基棉富集-原子吸收法测定不同中药材中镉和铅  

Determination of Cadmium and Lead in Different Chinese Herbal Medicine by Separating and Enriching With Sulfhydryl Cotton-Flame Atomic Absorption Spectrometry

作　　者：冯绍平[1,2] 黄兆龙[1,2] 李自静[1,2] 刘卫[1,2] 肖锐敏[1,2] 姜艳[1,2] 

机构地区：[1]红河学院理学院,云南蒙自661199 [2]云南省高校天然药物与化学生物学重点实验室,云南蒙自661199

出　　处：《北方园艺》2014年第13期162-165,共4页Northern Horticulture

基　　金：国家公益性行业科研专项资助项目(200810998);云南省应用基础研究计划资助项目(2013FZ121)

摘　　要：以云三七、云木香、重楼、茯苓、黄连为研究对象,通过巯基棉分离富集后,用火焰原子吸收法测定了样品中镉和铅的含量,对镉、铅的富集条件及洗脱条件进行了研究。结果表明：2种元素测定的相对标准偏差为0.34%～2.86%,回收率在96.32%～103.70%之间。该方法可用于测定中药材中镉和铅的含量。Taking Panax notoginseng,Aucklandia lappaDecne.,Rhizoma paridis,Poria cocks and Rhizoma coptis as materials,content of cadmium（Cd）and lead（Pb）in 5different Chinese herbal medicine after separating and enriching with sulfhydryl cotton by flame atomic absorption spectrometry（FAAS）were determined,the enriching and eluting conditions were studied.The results showed that the precision relative standard deviations were between 0.34% and2.86%for determining of Cd and Pb by this method,and the spike recoveries range from 96.32%to 103.70%.The results indicated that the method was reasonable well for determining content of Cd and Pb in Chinese herbal medicine.

关 键 词：巯基棉 中药材 镉 铅 

分 类 号：O657.3[理学—分析化学]