| 光谱学与光谱分析 |
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| Determination of Lead and Cadmium in Rapeseed and Rapeseed Meal with Microwave Digestion by Graphite Furnace Atomic Absorption Spectrometry |
| HE Xiao-min1,WANG Min2,WANG Xiao-dong1,XUE Ai-fang1,LI Sheng-qing1,CHEN Hao1* |
1. College of Sciences, Huazhong Agricultural University, Wuhan 430070, China
2. College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China |
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Abstract Comprehensive utilization of rapeseed and rapeseed meal has been increasingly emphasized, and contaminative problems of heavy metal have been attracting great attention, so it is of quite important significance to determine the contents of Pb and Cd. An effective method was developed for the rapid determination of Pb and Cd in rapeseed and rapeseed meal. Digestive dissolvent, time and pressure were discussed for sample preparation by microwave digestion technique, and the optimum condition of determination by GFAAS was studied. The determination limits were 2.172 and 0.243 μg·L-1,and the linear arranges were 0-100 μg·L-1 and 0-8 μg·L-1 for Pb and Cd, respectively. The recoveries were from 80.8% to 110.7%. The RSD of determination was lower than 5.3%. The method offers traits of low detection limit, high sensitivity, speediness and exactness, and was applied to the determination of Pb and Cd in samples with satisfactory results.
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Received: 2006-08-16
Accepted: 2006-11-16
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Corresponding Authors:
CHEN Hao
E-mail: hchenhao@mail.hzau.edu.cn
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| Cite this article: |
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HE Xiao-min,WANG Min,WANG Xiao-dong, et al. Determination of Lead and Cadmium in Rapeseed and Rapeseed Meal with Microwave Digestion by Graphite Furnace Atomic Absorption Spectrometry[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(11): 2353-2356.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I11/2353 |
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