The Determination of a Diesel Solidifying Point by Near Infrared Spectroscopy

摘要

A total of 86 representative samples of diesel oil were selected to determine the solidifying point. These samples covered a wide range and the concentration is more evenly distributed. The near infrared spectroscopy (NIR) method to determine the diesel solidifying point was successfully designed. Multiple linear regression method was chosen to establish the calibration model. The regression coefficients, partial regression sum of squares, partial correlation coefficients, the total estimated .standard deviation, correlation coefficient, residual sum of squares, and other model parameters were calculated. The repeatability of the NIR method is better than the standard method. It can be seen that this NIR method to determine the diesel solidifying is feasible and repeatable.