| 双柱气相色谱法测定有机物的正辛醇/水分配系数 |
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| 引用本文： | 刘凤萍,曹晨忠.双柱气相色谱法测定有机物的正辛醇/水分配系数[J].分析测试技术与仪器,2002,8(1):40-44. |
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| 作者姓名： | 刘凤萍 曹晨忠 |
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| 作者单位： | 湘潭师范学院化学系,湖南,湘潭,411201 |
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| 摘 要： | 通过对烷烃，醇类等有机物在五种不同极性固定相上的气相色谱保留值的测定，提出了从有机物气相色谱保留值测定其正辛醇/分配系数的公式，研究了从不同极性固定相上测得的保留值来测定其分配系数的准确性，得出烷烃类在所有柱上测得的保留值与其分配系数间均具有很好的关联，烷烃醇类在极性相异柱上的保留值之比值与其分配系数间也有很好的相关性，从而为烷烃及醇类等有机物分配系数的测定提供了一种简单、可靠，易行的新方法。
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| 关 键 词： | 双柱气相色谱法 测定 有机物 正辛醇／水 分配系数 保留值 |
| 收稿时间： | 2001/11/28 0:00:00 |
| 修稿时间： | 2002/1/16 0:00:00 |
Measuerment of Partition Coefficient by Double Column Gas Chromatography |
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| LIU Feng-ping and CAO Chen-zhong.Measuerment of Partition Coefficient by Double Column Gas Chromatography[J].Analysis and Testing Technology and Instruments,2002,8(1):40-44. |
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| Authors: | LIU Feng-ping and CAO Chen-zhong |
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| Institution: | Department of Chemistry, Xiangitan Normal University, Xiangtan 411201, China;Department of Chemistry, Xiangitan Normal University, Xiangtan 411201, China |
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| Abstract: | A simple reliable method for measuring the partition coefficient of organic compounds was established by double column gas chromatography. It was based on the linearity of retention time( t \-R) and the logarithmic of partition coefficient(log p) or the linearity of the t \- Rm / t \- Rn and log p on the different polar stationary phase. The partition coefficient of alkane and alcohol were measured with satisfactory results. |
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| Keywords: | gas chromatography retention time partition coefficient |
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