研究简报
朱秀华,王炜.烃类化合物气相色谱保留指数与其分配系数关系研究[J].环境科学学报,2001,21(5):631-633
烃类化合物气相色谱保留指数与其分配系数关系研究
- The relationship between partition coefficients of hydrocarbons and their retention indices
- 基金项目：辽宁省教委项目(992921696)
- 作者
- 单位
- 朱秀华
- 大连铁道学院环境科学与工程系,大连 116028
- 王炜
- 大连铁道学院环境科学与工程系,大连 116028
- 摘要：报道了从烃类化合物气相色谱保留指数预测其正辛醇水分配系数的公式,研究了以不同极性固定相上测得的烃类化合物保留指数预测其分配系数的准确性,得出弱极性柱上测得的化合物保留指数能更准确的预测其分配系数,从而为烃类化合物分配系数的测定和预测提供了一种简便易行的新方法.
- Abstract：Using the retention indices of hydrocarbons to predict the octanol-water partition coefficients( logKow) is proposed. The influence of the polarity of the stationary phase on the degree of accuracy of the predicting value of the logk ow was studied. The retention indices that determined on the weak polar stationary phase can give more accurate predicting value of the logKow. The hydrocarbon should be classified as paraffin, olefins, naphthenes and aromatics, then the ideal result can be gotten by each type of predicting formula.
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