摘要
目的:探讨紫外分光光度法在监测中药重金属含量中的应用。方法:采用紫外分光光度法测定桔梗、丹参、党参、川芎、地龙重金属的含量。结果:对照品重金属的检测浓度在0～50μg·ml-1,质量浓度范围内与吸收度呈良好线性关系(r=0.9993);平均回收率为98.46%,RSD=1.49%(n=6);桔梗、丹参、党参的重金属含量为25.60、27.12、24.44μg·g-1;川芎、地龙的重金属含量偏高,分别为47.38、50.56μg·g-1。结论:紫外分分光光度法可用于检测中药重金属的含量。
Objective：To determine the content of heavy metal in traditional Chinese drugs and to study the application of UV spectrophotometry in this area.Methods：UV spectrophotometry was established to determine the content of heavy metals in 5 kinds of Chinese drugs such as Radis platycodonis.Results：The linear range of heavy metal was 0-50μg.ml^-1（r=0.9993）,and the average recovery rate was 98.46,RSD=1.49%（n=6）.The contents of heavy metals in Radis platycodonis,Radis salviae miltiorhizae,Radis codonopsis were 25.60,27.12,24.44 μg.g^-1 respectively,and the contents of Rhizoma chuanxiong and Pheretima were on the high side（47.38 and 50.56 μg.g^-1 respectively）.Conclusion：The UV spectrophotometry can be used for the determination of heavy metals in traditional Chinese drugs.
出处
《现代医药卫生》
2010年第16期2423-2425,共3页
Journal of Modern Medicine & Health
关键词
重金属
紫外分光光度法
含量测定
中药材
Heavy metal
UV spectrophotometry
Content analysis
Chinese herbal medicines
