1. Analysis and Testing Center, Inner Mongolia University for Nationalities, Tongliao 028042, China 2. Department of State-Owned Assets, Inner Mongolia University for Nationalities, Tongliao 028042, China
摘要： 通过对仪器参数进行优化，经过样品消解剂筛选，建立了测定蒙成药中Na, Zn, Cu, Fe, Mn, Ca, Mg七种元素的微波消解-火焰原子吸收光度法。方法的回收率在95.8%～104.3%之间，RSD值在1.9%～4.2%之间。为验证方法的可靠性，用该方法对国家标准物质灌木枝叶GSV-1进行了测试，测定值较好地吻合标准值。在样品前处理中采用微波消解技术，比传统的湿法具有操作简便、节约试剂、消解时间短、环境污染少等优点，是值得推广应用的样品处理方法之一。
关键词：微波消解;火焰原子吸收光度法;蒙成药;金属元素
Abstract：A microwave digestion-flame atomic absorption spectroscopy (FAAS) method was developed for the determination of metal elements Na, Zn, Cu, Fe, Mn, Ca and Mg in Mongolian patents. The instrument parameters for the determination were optimized, and the appropriate digestion solvent was selected. The recovery of the method was between 95.8% and 104.3%, and the RSD was between 1.6% and 4.2%. The accuracy and precision of the method was tested by comparing the values obtained from the determination of the standard sample, bush twigs and leaves (GSV-1) by this method with the reference values of GSV-1. The determination results were found to be basically consistent with the reference values. The microwave digestion technique was applied to process the samples, and the experimental results showed that compared to the traditional wet method, the present method has the merits of simplicity, saving agents, rapidness, and non-polluting. The method was accurate and reliable, and could be used to determine the contents of seven kinds of metal elements in mongolian patents.
Key words：Microwave digestion;FAAS method;Mongolian patents;Metal element
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