研究了中红外光谱用于车用汽油组成快速分析的方法,建立了多种汽油标号通用的苯、芳烃、烯烃和 MTBE 含量的校正模型,相关系数分别为0.9939、0.9942、0.9793、0.9987,对车用汽油中苯、芳烃、烯烃和MTBE含量的预测标准偏差为0.0179、0.354、0.695、0.0345,实验证明中红外光谱测定值和色谱法测定值之间具有较好的相关性,该方法能为生产和储运销环节的质量控制快速提供分析数据.%The rapid determination of benzene、hydrocarbon types and methyl tert-butyl ether (MTBE) in gasoline by infrared spectroscopy was studied. The calibration models of benzene、aromatics、olefins and MTBE were established with the correlation coefficients 0.9939, 0.9942, 0.9793, 0.9987, and the root mean square errors of cross validation (RMSECV) was 0.0179, 0.354, 0.695, 0.0345, respectively. It was found that the prediction accuracy of the results obtained was high enough to meet the demand of the process control of gasoline.
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