| 微波辅助预还原-HG-ICP-AES联用技术用于三七无机硒形态分析 |
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| 引用本文： | 汪洋,孟君.微波辅助预还原-HG-ICP-AES联用技术用于三七无机硒形态分析[J].河南师范大学学报(自然科学版),2011,39(2):72-75. |
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| 作者姓名： | 汪洋 孟君 |
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| 作者单位： | 1. 河南大学化学化工学院,河南开封475000;商丘职业技术学院机电工程系,河南商丘476000
2. 郑州轻工业学院食品与生物工程学院,郑州,450002 |
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| 基金项目： | 国家自然科学基金(20876152) |
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| 摘 要： | 建立了微波预还原-氢化物发生-电感耦合等离子体原子发射光谱联用技术测定中药三七提取液中无机硒的方法,对测定条件进行了优化选择,通过直接测定Se(IV)和微波辅助定量还原后测总硒,用差减法测得Se(VI)的量.Se(IV)的检出限为0.23 μg·L-1,相对标准偏差为2.0％,回收率为82％～104％,结果较为满意.
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| 关 键 词： | 微波辅助预还原 氢化物发生 电感耦合等离子体原子发射光谱法 形态分析 三七 硒 |
Determination of Inorgannic Selenium in Extract of Panpax Notoginseng by Microwave Assisted Reduction Hydride Generation Inductively Coupled Plasma Atomic Emission Spectrometry |
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| WANG Yang,MENG Jun.Determination of Inorgannic Selenium in Extract of Panpax Notoginseng by Microwave Assisted Reduction Hydride Generation Inductively Coupled Plasma Atomic Emission Spectrometry[J].Journal of Henan Normal University(Natural Science),2011,39(2):72-75. |
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| Authors: | WANG Yang MENG Jun |
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| Institution: | 1.College of Chemistry and Chemical Engimeering,Henan University,Kaifeng 475000,China;2.Shangqiu Polytechnic Electrical Engimeering,Shangqiu 476000,China;3.School of Food and Biological Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002,China) |
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| Abstract: | A new method is proposed for simultaneous determination of inorganic selenium in pseudo-ginseng by microwave assisted reduction hydride generation inductively coupled plasma atomic emission spectrometry(MAR-HG-ICP-AES).The experiment determines directly Se(IV) and total selenium after quantitative reduction to Se(IV).The content of Se(VI) is obtained by the way of differential subtraction.The effects of operating parameters on determination performance are studied in detail.Under the optimal condition,the detection limits(3σ) of Se(IV) are 0.23 μg·L-1,the relative standard deviations are 2.0%,the recovery is between 82%～104%.The method has been applied to the determination of tinorganic Se in Chinese traditional medicine pseudo-ginseng with satisfactory results. |
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| Keywords: | microwave assisted reduction hydride generation inductively coupled plasma atomic emission spectrometry species analysis pseudo-ginseng selenium |
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