摘要
目的:建立测定中成药中铅、镉、砷、铜4种有害元素的原子吸收光谱法,进而对中成药中的有害元素进行限量控制。方法:样品经电热板或微波消解,铅、镉采用石墨炉法,砷采用氢化物法,铜采用火焰法进行测定。结果:标准曲线线性良好,相关系数r大于0.999 8,加样回收率在93%～119%之间。结论:该法能满足微量分析的要求,可用于中成药中有害元素的限量控制。
Objective： To establish a method to determine and control effectively 4 hazard elements including Pb, Cd, As, Cu in Chinese traditional medicine by Atomic Absorbance Spectrometry（AAS）. Methods： The samples were prepared through digesting on a heat board with electric energy or in a microwave oven, then Pb and Cd determined by Graphite Furnace AAS, As determined by Hydride Generation AAS, Cu determined by Flame AAS. Results： Good linearity of calibration curve was obtained, the correlative coefficients was above 0. 999 8. The standard addition recovery was 93 % -119 %. Conclusion： The method can satisfy the microanalysis request, and be used to control the content of the 4 hazard elements in Chinese traditional medicine.
出处
《中国现代中药》
CAS
2008年第9期23-26,共4页
Modern Chinese Medicine
基金
广东省科技计划项目--中成药中重金属及有害元素检测方法与限度的研究(2005B36001031)
