摘要
目的:建立原子荧光光谱法测定中药材中镉的含量。方法:利用高氯酸-硝酸湿法消解,对中药材中的镉进行原子荧光测定。结果:镉在0.1～2.0ng.mL-1范围内线性关系良好,相关系数为0.9998,最低检出浓度为0.0063ng.mL-1,回收率均在90%以上。结论:该方法简便、快捷,有较高的灵敏度、准确度、精密度和较低的检出限,适用于中药材中镉含量的测定。
Objective：To establish a method for the determination of cadmium in traditional Chinese medicines by atomic fluorescence spectrometry using wet digestion.Methods：Through atomic fluorescence spectrometry with the way of clearing up of wet method,we studied the conditions that can affect the result of experiment.Results：The good linear relation was determined as 0.1-2.0 ng·mL-1 by atomic fluorescence spectrometry with a regession coefficient of 0.9998.The detection lim it was 0.0063 ng·mL-1,the recovery rate of spiked samples ranged above 90%.Conclusion：This method is simple,rapid,high sensitivity,accurate,precision and low detection limits.And it suits the purpose of the determination for cadmicim in traditional Chinese medicines.
出处
《药物分析杂志》
CAS
CSCD
北大核心
2010年第10期1918-1920,共3页
Chinese Journal of Pharmaceutical Analysis
关键词
原子荧光光谱法
中药材
镉
atomice fluorescence spectrometry
traditional Chinese medicines
cadmium
