摘要
目的:建立原子荧光光谱法测定红花中重金属的含量。方法:采用干灰化法消解红花样品后,用原子荧光光谱法测定其中的砷、汞、铅,镉的含量,并对测定方法进行了方法学考察。结果:对于所测元素,校准曲线的相关系数r>0.9993,回收率为84.2%～104.9%,RSD<5%。结论:该方法快速、简便、准确且灵敏度高,为中药材中重金属含量测定提供了较好的方法。
Objective： To establish a method for the determination the contents of heavy metals in Safflower by atomic fluorescence spectrometry.Methods：Digestion of sample by dry Asking method,using atomic fluorescence spectrometry determination of Safflower in As、Hg、Pd、Cd contents,we studied the conditions that can affect the result of experiment.Results：The measuring element,a correlation coefficient r〉0.9993,the recovery rate of 84.2%-104.9%,RSD〈5%.Conclusion：This method is simple,rapid,high sensitivity,accurate,precision and low detection limits,and provides a better method for determination of the heavy metals content in Chinese medicines.
出处
《农垦医学》
2012年第1期20-22,共3页
Journal of Nongken Medicine
基金
国家科技支撑计划(2011BAI05B05)
关键词
原子荧光法
红花
重金属
Atomic fluorescence spectrometry
Safflower
Heavy metals
