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Citation: GAO Jun, XU Yong-Ye, YAO Cheng. Determination of Olefin Hydrocarbons in Gasoline by Near-infrared Spectroscopy[J]. Chinese Journal of Applied Chemistry, ;2005, 22(12): 1390-1392. shu

Determination of Olefin Hydrocarbons in Gasoline by Near-infrared Spectroscopy

GAO Jun ^a,b ,
XU Yong-Ye ^a,c ,
YAO Cheng ^a,,

1.
a College of Sciences, Nanjing University of Technology, Nanjing 210009;
2.
b Nanjing University of Information Science & Technology, Nanjing;
3.
c Yangtze Research Institute of Petroleum Processing, Nanjing

Corresponding author: YAO Cheng,
Received Date: 26 January 2005
Available Online: 8 April 2005

A method for determination of olefin hydrocarbons in gasoline products by nearinfrared spectroscopy is presented.The alkene content in the gasoline samples,which were used as the training set for building the calibration model,was determined by detailed hydrocarbon analysis.The spectral data of 1 000~2 000 nm were optimized by using Fourier transform near-infrared spectrometry together with cross validated partial least-squares regression.The mean error between the determined values by detailed hydrocarbon analysis and the predicted values for the training set samples was 0.2%,and an excellent correlation was obtained (R²=0.988 1).The mean error for unknown samples determined by detailed hydrocarbon analysis and NIR was 0.39%.
- gasoline,
- olefin hydrocarbons,
- near-infrared spectrum,
- partial least-squares regression
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