摘要
目的:建立快速准确"浙八味"中微量砷元素测定方法。方法:采用MK-Ⅲ型微波消解仪消解"浙八味"药材,并结合原子荧光光谱法(AFS)测定砷元素含量。结果:在混合酸体系HNO3—HCl中,当混合酸摩尔比为10∶2、微波功率300 W、消解时间5 min、固液比为1∶14的条件下,消解结果最佳。在此条件下进行精密度实验和回收率实验,所得结果的相对标准偏差在0.595%~3.016%之间,回收率在98.59%~104.1%之间。结论:微波消解法处理"浙八味"药材,具有快速、简便、节省试剂、消解完全等特点,测定结果的精密度和准确度令人满意。
Objective: To establish a kind of the Microwave-Digestion Atomic Absorption Spectrometry method for determination of As in "Eight famous kinds of traditional Chinese medicine in Zhejiang province".Method:A microwave digestion procedure was developed for the determination of trace As by using the MK-Ⅲ microwave digestion system,and the amounts of As elements were determined by atomic fluorescence spectrometry after microwave digestion.Result: The optimized conditions of microwave digestion procedure were as ...
出处
《微量元素与健康研究》
CAS
2009年第2期44-47,共4页
Studies of Trace Elements and Health
基金
2007年度浙江省大型科学仪器设备协作共用平台科研计划项目资助(No.2007F70005)
2008年度浙江省新苗人才计划项目资助(2008R40G2120039)
关键词
微波消解
“浙八味”
原子荧光光谱法
砷
microwave digestion
"Eight famous kinds of traditional Chinese medicine in Zhejiang province"
Atomic Fluorescence Spectrometric
As
