摘要
目的:建立一种聚四氟乙烯消化罐程序升温消解样品的体系,研究和确定原子荧光光谱法测定中药材中砷的方法。方法:采用聚四氟乙烯消化罐程序升温消解样品,氢化物发生-原子荧光光谱法测定中药材中的砷。结果:本方法的线性范围为0～6.0μg.L-1;r=0.9994;检出限为0.026μg.L-1;精密度为1.05%;回收率为95.4%。经与国家颁发的杨树叶标准物质同法操作核对,结果吻合。结论:该方法可广泛用于中药材中砷的测定。
Objective ：To establish a method for determination of trace arsenic in Chinese herbal medicine by steam generation atomic fluorescence spectrometry with temperature gradient and acid digestion in polytetra fluoroethylene pot. Methods：Microwave Accelerated Reaction System and Atomic Fluorescence Spectrometry were used. Results：The method could quantitatively determine total arsenic in Chinese herbal medicine. The linear range of mercury was 0～6.0μg·L^-1;（r=0.9994）;The determination limit of mercury is 0. 026μg·L^-1;the average recovery was 95.4% with RSD 3. 18%. The results obtained in the analysis of known sample were in conformity with the given values. Conclusion：The method can be used for the determination of total arsenic in Chinese herbal medicine.
出处
《中国药品标准》
CAS
2007年第5期21-23,共3页
Drug Standards of China
关键词
微波消解
原子荧光光谱法
中药材
砷
Microwave Accelerated Reaction System
Atomic Fluorescence Spectrometry
Chinese herbal medicine
trace arsenic
作者简介
王颖，女，主管药师。学科及研究方向：中成药检验及质量研究。联系电话：028-87526717
