Determination of moisture content in rapeseed oil by near-infrared spectroscopy

Rapeseed oil was used as a raw material,and the moisture in the rapeseed oil was extracted by dry acetonitrile,then Fourier transform near-infrared spectroscopy(FT-NIRS) combining partial least squares method(PLS)was used to develop the moisture quantitative analysis model.The results showed that the SEC,SEP and coefficient of determination(R2) were 0.014 6,0.039,and 0.921 6,respectively.The model had high predictive ability to forecast the moisture content of rapeseed oil,and FT-NIRS could replace the conventional analysis methods.