| 土壤中铬元素在中草药中的生物迁移 |
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| 引用本文： | 鲁勇齐,李生彬,郭效军,王强.土壤中铬元素在中草药中的生物迁移[J].光谱实验室,2009,26(2). |
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| 作者姓名： | 鲁勇齐 李生彬 郭效军 王强 |
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| 作者单位： | 1. 西北师范大学化学化工学院研究生公寓
2. 兰州交通大学环境与市政工程学院,兰州市,730070 |
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| 摘 要： | 对甘肃定西地区成熟期的5种中草药药用部分的Cr元素含量及这5种中草药根系部分土壤中Cr元素的含量用火焰原子吸收光谱进行了分析,比较了微波消解和高温灰化两种样品预处理方法,选定了微波消解法.实验结果发现,除了黄芪外,中草药中的铬含量明显高于土壤中铬的含量,表明5种中草药对土壤中Cr元素都有生物迁移作用,其迁移作用由强到弱依次是柴胡、甘草、当归、板蓝根和黄芪.原子吸收光谱对这5种中草药及其土壤中的铬的检测结果的相对平均标准偏差分别是0.06%、0.50%,对所有样品的回收率都在94%-105%之间.
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| 关 键 词： | 中草药 火焰原子吸收光谱 铬 生物迁移 |
Biological Mobility of Cr from Soil to Chinese Herbal Medicines |
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| LU Yong-Qi,LI Sheng-Bin,Guo Xiao-Jun,WANG Qiang.Biological Mobility of Cr from Soil to Chinese Herbal Medicines[J].Chinese Journal of Spectroscopy Laboratory,2009,26(2). |
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| Authors: | LU Yong-Qi LI Sheng-Bin Guo Xiao-Jun WANG Qiang |
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| Institution: | College of Chemistry and Chemical Engineering;Northwest Normal University;Lanzhou 730070;P.R.China;School of Environmental and Municipal Engineering;Lanzhou Jiaotong University;P.R.China |
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| Abstract: | The content of Cr in 5 kinds of mature Chinese herbal medicines and the soil from their roots were detected by flame atomic absorption spectrophotometry with microwave digestion and compared with high-temperature ashing for sample treatment. The Cr content in Chinese herbal medicines were significantly higher than that of Cr content in soil except for radix glycyrrhiza. Biological mobility exists in the transfer of Cr from soil to Chinese herbal medicines and biological mobility from strong to weak is radix... |
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| Keywords: | Chinese Herbal Medicine FAAS Cr Biological Mobility |
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