Determination of Trace Elements in Natural Grapestone by Inductively Coupled Plasma Atomic Emission Spectrometry
WANG Song-jun1, 2,CHANG Ping3,WANG Pu-jun1,HOU Tian-ping4,HOU Yue5
1. College of Earth Science, Jilin University, Changchun 130061, China 2. Center of Basic Experiment, University of Science and Technology of Suzhou, Suzhou 215009, China 3. College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China 4. Jilin Teachers Institute of Engineering and Technology, Changchun 130052, China 5. College of Material and Chemical Engineering, Zhejiang University, Hongzhou 310027, China
Abstract：Determination of trace elements in natural grapestone was studied by inductively coupled plasma atomic emission spectrometry (ICP-AES). Comparison was made between dry incineration and acid clearing up in terms of interference of organic component in natural grapestone. By analyzing the plant standard substance GBW 07603(National Standard Substance), the data show that HNO3-HClO4 disposed samples are better than dry incinerated ones. The accuracy is 1.06-8.82, the precision is 1.35%-8.88%. The comparative experiment of trace elements determination was carried out for grapestone and herbs. The data show that grapestone is valuable for medicine and nutrition.
Key words：Inductively coupled plasma atomic emission spectrometry;Grapestone;Trace elements
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