示波极谱法烟丝中尼古丁含量测定及电极反应机理 |
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引用本文: | 李凤菊,王水婷,冶保献. 示波极谱法烟丝中尼古丁含量测定及电极反应机理[J]. 化学研究, 2003, 14(2): 59-62 |
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作者姓名: | 李凤菊 王水婷 冶保献 |
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作者单位: | 郑州大学化学系,河南,郑州,450052 |
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基金项目: | 河南省科委自然科学基金资助项目(编号:0211020400). |
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摘 要: | 研究了用示波极谱法直接测定烟丝中的尼古丁含量的新方法.在0.2mol/L草酸底液中(pH=4.0),于-1.22V处得到尼古丁的灵敏还原峰,峰电流与尼古丁浓度在1.5~31.5mg/L范围内呈良好的线性关系,检测下限达0.37mg/L.该方法用于烟丝中尼古丁含量的测定,简单快速,测定回收率在91%左右.
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关 键 词: | 尼古丁 示波极谱 烟丝 |
文章编号: | 1008-1011(2003)02-0059-04 |
修稿时间: | 2002-11-20 |
Determination of Nicotine by Oscillopolarography and the Electrode Reaction Mechanism |
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Abstract: | A new method for direct determination of nicotion in cigarettes is investigated by oscillopolarography. In 0.2mol/L oxalic acid, a sensitive reduction peak is obtained at -1.22 V. The peak currents are in linear relationship with nicotine concentrations in the range of 1.5 mg/L~31.5 mg/L with the detection limit of 0.37 mg/L. This method has been used for direct determination of trace nicotine in cigarette with good results. |
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Keywords: | nicotine oscillopolarography cigarettes |
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