| 光谱学与光谱分析 |
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| Determination of Cadmium, Chromium and Lead in Lycoris Radiata with Microwave Digestion Technique by Graphite Furnace Atomic Absorption Spectrometry |
| FAN Hua-jun1，2，LI Gong-ke1*，LUAN Wei1，CAI Pei-xiang1 |
1. School of Chemistry and Chemical Engineering，Sun Yat-Sen University，Guangzhou 510275，China
2. Department of Pharmacy, Guangdong College of Pharmacy，Guangzhou 510224，China |
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Abstract A new method using microwave digestion technique was developed for the determination of cadmium，chromium and lead in Lycoris radiata by graphite furnace atomic absorption spectrometry (GFAAS). Digestion solvents were discussed for sample preparation by microwave digestion technique. The optimum condition of determination by GFAAS was studied in the presence of NH4H2PO4 matrix modifier. The detection limits of Cd, Cr and Pb are 0.066 7, 1.22 and 0.810 μg·L-1，respectively. The method was applied to the determination of Cd, Cr and Pb in Lycoris radiata samples with satisfactory results. The RSD of determination were lower than 3.1%. The recoveries were from 83.8% to 118 %.
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Received: 2004-03-10
Accepted: 2004-07-26
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Corresponding Authors:
LI Gong-ke
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| Cite this article: |
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FAN Hua-jun,LI Gong-ke,LUAN Wei, et al. Determination of Cadmium, Chromium and Lead in Lycoris Radiata with Microwave Digestion Technique by Graphite Furnace Atomic Absorption Spectrometry [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(09): 1503-1506.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2005/V25/I09/1503 |
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