| 涂钼石墨管-电热原子吸收法测定药品中微量钯 |
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| 引用本文： | 林琳,韩华云,陈克.涂钼石墨管-电热原子吸收法测定药品中微量钯[J].光谱学与光谱分析,2002,22(3):476-477. |
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| 作者姓名： | 林琳 韩华云 陈克 |
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| 作者单位： | 郑州大学化学系,河南,郑州,450052,广州化学研究所,广东,广州,510650 |
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| 摘 要： | 本文采涂钼热解石墨管 ,EDTA为基体改进剂 ,石墨炉原子吸收法测定了出口药品盐酸多西环素中残留催化剂钯的含量。方法的检出限为 4 6× 10 - 1 0 g ,对于 30ng·mL- 1 钯的测定表明 ,方法的相对标准偏差为 4 3%。
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| 关 键 词： | 涂钼石墨管 电热原子吸收法 钯 盐酸多西环素 药物分析 |
| 文章编号： | 1000-0593(2002)03-0476-02 |
| 修稿时间： | 2000年6月19日 |
Determination of Trace Palladium in Medicament by Electric-heated AAS with Molybdenum-coated Graphite Tube |
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| LIN Lin,HAN Hua yun,CHEN Ke.Determination of Trace Palladium in Medicament by Electric-heated AAS with Molybdenum-coated Graphite Tube[J].Spectroscopy and Spectral Analysis,2002,22(3):476-477. |
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| Authors: | LIN Lin HAN Hua yun CHEN Ke |
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| Institution: | Department of Chemistry, Zhengzhou University, Zhengzhou 450052, China. |
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| Abstract: | This paper reports a new method for the determination of palladium in exported medicament doxycycline hydrochloride by graphite furnace atomic absorption spectrometry. The optimum conditions for the determination of trace Pd were investigated in details. When the graphite tube was coated with molybdenum, the sensitivity was enhanced and when EDTA was used as the matrix modifier the matrix interference was eliminated efficiently. The result indicates that the detection limit for Pd is 4.6 x 10(-10) g and the relative standard deviation is 4.3%. The method is accurate and rapid and can be used successfully to determine actual samples. The recovery rate of palladium is in the range of 97.1% to 103.3%. |
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| Keywords: | Palladium Molybdenum coated graphite tube Electric heated AAS Doxycycline hydrochloride |
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