| 光谱学与光谱分析 |
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| Digestion—Flame Atomic Absorption Spectroscopy |
| XU Liang1,HU Jian-guo2,LIU Rui-ping1*,WANG Zhi-min1,Narenhua1 |
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 |
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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.
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Received: 2006-09-02
Accepted: 2006-12-08
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Corresponding Authors:
LIU Rui-ping
E-mail: nmgxl66@163.com
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