石墨炉原子吸收光谱法测定大青盐中微量铅  

Determination of Lead in Mineral Salt of Halitum by GFAAS

作　　者：刘晓芳[1,2] 常军民[1] 徐鸿 

机构地区：[1]新疆医科大学药学院,乌鲁木齐830011 [2]新疆维吾尔自治区食品药品检验所,乌鲁木齐830004

出　　处：《中国药品标准》2013年第1期26-28,共3页Drug Standards of China

基　　金：科技部国家科技支撑计划项目-矿物药大青盐标准研究(项目编号:2006BA155B02)

摘　　要：目的:建立石墨炉原子吸收光谱(GFAAS)测定大青盐中微量铅含量的方法。方法:采用标准加入法,用GFAAS测定大青盐中微量铅。结果:在一定的条件下铅含量与吸光度在10.0～80 ng.mL-1范围内二次曲线拟合度高,方法的加标回收率为89.9%～93.3%,RSD为1.46%。结论:该方法专属性强,灵敏度高且简便易行,可用于矿物药大青盐中微量铅的限量控制。Objective： To determine lead in mineral salt of Halitum by Graphite furnace atomic absorption spectrometry. Methods： The standard addition method was used for the determination of lead in Halitum by Graphite furnace atomic absorption spectrometry. Result ： The results showed that in the certain condition there is a quadratic curve relation between the concentration of lead and its absorbance in the range of 10.0-80. 0 ng· mL-1. The RSD was 1.46% , and the recovery was from 89.9% to 93.3%. Conclusion： The method is specific, sensitive, and can be used for the limit control of lead in Halitum.

关 键 词：大青盐 铅 石墨炉原子吸收光谱法 

分 类 号：R446.112[医药卫生—诊断学]