[Prediction the octane number of gasoline by near infrared spectra analysis].
The feasibility of predicting the octane number by the near infrared spectra analysis technique in the quantitative analysis was investigated. 12 calibration gasoline samples and 4 prediction samples were collected and their absorption spectra were measured with a high precision model Lambda 19 scanning spectrophotometer. Based on the multivariate statistic model, stagewise regression and partial least squares were selected. A model of the correlation behavior between the spectra and octane number was established and calibrated, and then the prediction of octane number is made. The prediction error is +/-1.0 octane number in the best analysis results.
Cao
D
D
Department of Applied Physics, National University of Defense Technology, 410073 Changsha.
Tan
J
J
Chen
Z
Z
Hu
Y
Y
Han
S
S
D005742:Gasoline / Q000032:analysis*; D009795:Octanes / Q000737:chemistry*; D011786:Quality Control; D013055:Spectrophotometry, Infrared / Q000379:methods*
D005742:Gasoline; D009795:Octanes; C026728:octane