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| Studies on Pre-treatment Method of Determining Mineral Elements in Vegetables by ICP Spectrometer |
| LIU Zhong-xiao, XU Dong-hui, ZHANG Yan-guo, GAO Ping, LIU Su |
| Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China |
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Abstract ICP Spectrometric Method is a high-throughput and accuracy optical test for mineral elements determination. Cucumber, Chinese cabbage, pepper, radish and bean were chosen as materials for mineral elements determination by ICP spectrometric method. Some pre-treatment processes including selection of acid media, drawing method of standard curve, digestion method and different sample digesting state were studied. The results showed that appropriate pre-treatment method can cause some differences on the determination results because of the fresh juicy features of the vegetables. Appropriate pre-treatment method was chosen according to different traits of the samples. Thus, accurate experiment data can be acquired.
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Received: 20 January 2010
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