| 烟草中氨、钾组分的离子色谱法快速分析 |
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| 引用本文： | 夏炳乐,郑一新,时亮,刘清亮.烟草中氨、钾组分的离子色谱法快速分析[J].色谱,2001,19(4):378-379. |
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| 作者姓名： | 夏炳乐 郑一新 时亮 刘清亮 |
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| 作者单位： | 1. 中国科学技术大学食品科学系,
2. 中国科学技术大学化学系, |
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| 基金项目： | 国家烟草专卖局科研基金资助项目(97-145) |
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| 摘 要： | 采用稀硝酸浸提、离子色谱法 (IC)快速分析烟草中的钾及游离态氨。该法制样简便、测定快速 ,两种物质的标准曲线线性关系良好。方法的最低检测浓度 :K+,0 0 5mg/L ;NH3,0 0 3mg/L。回收率 :K+,92 7%～10 6 7% ;NH3,96 5 %～ 10 9 0 %。整个分析过程仅需 5min ,样品测试结果令人满意。
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| 关 键 词： | 离子色谱 氨 钾 烟草 |
| 文章编号： | 1000-8713(2001)04-0378-02 |
| 修稿时间： | 2000年10月17 |
Determination of Ammonia and Potassium in Tobacco by Ion Chromatography |
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| XIA Bing le ,ZHENG Yi xin ,SHI Liang ,LIU Qing liang.Determination of Ammonia and Potassium in Tobacco by Ion Chromatography[J].Chinese Journal of Chromatography,2001,19(4):378-379. |
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| Authors: | XIA Bing le ZHENG Yi xin SHI Liang LIU Qing liang |
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| Institution: | Department of Food Science, University of Science and Technology of China, Hefei 230052, China. xbllml@china.com |
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| Abstract: | A new ion chromatographic method was developed for the quantitative determination of ammonia and potassium in tobacco The tobacco samples were treated with dilute nitric acid and K , NH 4 were extracted The method is fast and convenient. The relationships between peak heights and initial concentrations of K and NH 4 were linear. The detection limits were 0 05 mg/L for K and 0 03 mg/L for NH 4 . Recoveries of K and NH 4 were 96 7% 106 7% and 96 5% 109 1% respectively. The whole procedure of determination can be completed within 5 min |
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| Keywords: | ion chromatography ammonia potassium tobacco |
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