摘要
用气相色谱以程序升温方式分析了石脑油 ,并将各组分程序升温保留时间转换为恒温保留指数。以各组分在OV -1和SE -54固定相上、同一柱温下的保留指数差及在各柱上的温度系数为3因素进行斜交因子分析和本征矢量旋转 ,给出了石脑油样品的族组成值 ,经色谱 -质谱仪分析验证了结果的正确性 ,为石脑油样品的族组成分析提供了一种新方法。
A new method is proposed for compound _ class analysis of naphtha by gas chromatography with temperature programming. Retention times of naphtha constituents under temperature _ programming conditions were transformed to constant _ temperature retention indices. The differences between the retention indices of the constituents on two stationary phases OV-1 and SE-54 at the same temperature, as well as their temperature coefficients on each column, were then subjected to Promax oblique rotation factor analysis and eigenvector rotation. The compound _ class value of the naphtha sample was thus obtained. The method has been verified against the conventional gas chromatograhy-mass spectrometry.
出处
《分析测试学报》
CAS
CSCD
2000年第5期20-28,共9页
Journal of Instrumental Analysis
关键词
气相色谱
保留指数
因子分析
石脑油
族组成分析
Gas chromatography
Retention index
Factor analysis
Naphtha
Compound _ class analysis
