HPLC is a form of column chromatography. It utilizes a column that holds chromatographic packing material (stationary phase), a pump that moves the mobile phase through the column, and a detector that shows the retention times of the molecules. Components to be analyzed are first dissolved in a solvent, and then forced to flow through a chromatographic column under high pressure. The mixture that resolved into its components is detected by UV spectrometer. Sample result of furan measurement by HPLC is shown as follows. The time at which the peak occurs in the corresponding chromatograms indicates the existence of the particular furan derivatives available in the oil sample.