Utilize the frequency doubling or combined frequency of the stretching vibration of hydrogen-containing group chemical bonds to obtain the absorption spectrum in the near-infrared region through transmission or reflection, and establish automotive gasoline products through modern chemometrics methods such as principal component regression and partial least squares methods. The linear or nonlinear relationship (calibration model) between the near-infrared spectrum and its quality index can be used to realize the use of spectral information to study the octane number, motor octane number, benzene content, aromatic content, olefin content, oxygen content of the sample to be tested. Rapid analysis of methanol content and methanol content.
T/CPCIF 0184-2022 history
2022T/CPCIF 0184-2022 Rapid analysis method of motor vehicle gasoline— Near infrared spectrometry