GC (Gas Chromatography)/MS (Mass Spectrometry) measuring method of humectants in cigarette cut tobacco

The invention discloses a GC (Gas Chromatography)/MS (Mass Spectrometry) measuring method of humectants in cigarette cut tobacco, wherein the humectants comprise 1,2-propylene glycol, glycerin and triglycol. The GC/MS measuring method is characterized by comprising the following steps of: drying, crushing and sieving a cut tobacco sample; respectively treating the extract liquor through a dispersive solid-phase extraction (SPE) centrifuge tube and purifying the extract liquor through a filter membrane, quantitatively detecting the contents of the three humectants in the cut tobacco through a gas chromatography and mass spectrometry detector (GC/MS) by utilizing an internal standard method. The detecting method provided by the invention is capable of improving the repeatability of the measuring method, the purification method of the extract liquor is simple and effective, the pollution of a sample solution on a chromatographic column and an ion source can be reduced, the sensitivity is good, and the recovery is good.