| 高压消解-紫外分光光度法测定红花中的重金属 |
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| 引用本文： | 李可,李书静,姚新建.高压消解-紫外分光光度法测定红花中的重金属[J].光谱实验室,2012,29(2):737-740. |
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| 作者姓名： | 李可 李书静 姚新建 |
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| 作者单位： | 周口师范学院化学系,河南省周口市文昌大道东段,466001 |
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| 基金项目： | 河南省科技攻关计划(112102310562);河南省教育厅自然科学研究计划项目(2011B150040);周口师范学院青年基金(zknuqn201129B) |
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| 摘 要： | 采用高压消解-紫外分光光度法,建立了测定淮红花中的重金属含量的方法。结果表明:此法铅含量在0—40μg范围内,与吸光度线性关系良好,r=0.9989。淮红花中重金属含量为18.71μg/g,符合国家标准,平均加标回收率为97.82%,RSD=2.93%(n=5)。高压消解法的使用,进一步提高了测定方法的准确性和便捷性,此法可用于中药中重金属含量的检测。
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| 关 键 词： | 高压消解 紫外分光光度法 红花 重金属 |
Determination of Heavy Metal in Flowers Carthami by UV Spectrophotometry with High Pressure Digestion |
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| LI Ke
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LI Shu-Jing
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YAO Xin-Jian.Determination of Heavy Metal in Flowers Carthami by UV Spectrophotometry with High Pressure Digestion[J].Chinese Journal of Spectroscopy Laboratory,2012,29(2):737-740. |
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| Authors: | LI Ke LI Shu-Jing YAO Xin-Jian |
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| Institution: | LI Ke LI Shu-Jing YAO Xin-Jian(Department of Chemistry,Zhoukou Normal University,Zhoukou,Henan 466001,P.R.China) |
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| Abstract: | A method for the determination of the content of heavy metal in flowers carthami by UV spectrophotometry with high pressure digestion was established.There was a good linear relationship between the concentration of lead and absorption in the range of 0—40μg with correlation coefficient of 0.9989.The content of heavy metal was 18.71μg/g in flowers carthami,that conformed to the national standard,and the average standard recovery was 97.82% with RSD of 2.93%(n=5).The accuracy and simplicity of the determination method were further improved by high pressure digestion.The method can be applied to the contents detection of heavy metals in traditional Chinese medicine. |
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| Keywords: | High Pressure Digestion UV Spectrophotometry Flowers Carthami Heavy Metal |
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