Method for quickly identifying oil product type
2015
The invention discloses a method for quickly identifying an oil product type, and the method includes the following steps: (1) an oil product is directly dissolved in a selected solvent and directly injected for chromatographic analysis; and (2) at least two chromatographic peaks corresponding to different selected components of a chromatographic separation group are selected from a chromatogram obtained by the step (1), and the ratio of the peak area of the at least two chromatographic peaks is calculated for determination of the type of the oil product. Preferably, the chromatographic peaks corresponding to the selected components in the chromatogram at least meet the requirements of obvious peak and good reproducibility. Sample pretreatment operation is not needed, a sample analysis procedure is simplified, sample detection efficiency is improved, and changes in sample composition may not caused, so that the method is helpful to improve the detection accuracy, and the method has high efficiency, high throughput, strong practicability and good reproducibility and other advantages. For example, the method can be used for accurately judging the type of edible oil in 1 hour.
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