摘要
目的:建立中药中6种重金属及有害元素(铅、镉、砷、汞、铜、锑)的检测方法,测定6种中药材中的残留含量。方法:样品经微波消解,采用石墨炉原子吸收法测定铅、镉、锑;采用氢化物-原子吸收法测定砷;采用冷原子吸收法测定汞;采用火焰原子吸收法测定铜,并对测定方法进行了方法学考察。结果:6种重金属及有害元素的回收率为79.0%~125.8%,RSD 为0.8%~14.6%。结论:该方法简便,准确,可较好地用于中药重金属及有害元素残留量的测定。
Objective:To determine the content of six and Sb) in six Chinese herbs. Methods:Samples were were determined by graphite furnace atomic heavy metal and deleterious elements ( Pb, Cd, As, Hg, Cu digested with microwave digestion system, and the Pb, Cd, Sb on spectrometry (GFAAS) ;the As was determined by hydride generation atomic absorption spectroscopy (HGAAS) ; the Hg was determined by cold vapour atomic absorption spectroscopy (CVAAS) ; the Cu was determined by flame atomic absorption spectrometry (FAAS) and examine the reproducibility and recovery of the method. Results: The recovery was 79. 0% - 125.8%, RSD was 0. 8% - 14. 6%. Conclusions:The method is simple and accurate and can be used in the determination of heavy metal and deleterious elements in Chinese herbs.
出处
《药物分析杂志》
CAS
CSCD
北大核心
2007年第2期256-259,共4页
Chinese Journal of Pharmaceutical Analysis
关键词
中药材
重金属及有害元素
原子吸收分光光度法
Chinese herbs
heavy metal and deleterious elements
atomic absorption spectrometry (AAS)