Determination of α-pinene,α-pinene oxide and verbenol by gas chromatography
In order to quantitatively analyze α-pinene oxidation products,α-pinane,α-pinene oxide and verbenol were detected by gas chromatography.The results show that the separation of the three com-pounds in the gas chromatographic column is good.The standard curve equations of α-pinene,α-pinene oxide and verbenol were as follows:Y1=6×108X1-253 848,Y2=5×108X2-174 421,Y3=6×108 X3-171 424,correlation coefficient R2>0.999.And there was a good linear in the range of 1.996～19.964 mg/mL,1.007～10.072 mg/mL and 0.987～9.868 mg/mL,respectively.The recoveries were 97.76%～103.80%.The relative standard deviations(RSD)ranged from 0.40%to 3.04%.RSD of α-pinene,α-pinene oxide and verbenol in the samples ranged from 0.63%to 3.43%.Gas chromatography provides a convenient and accurate method for the analysis of α-pinene oxidation by direct sampling and detection of α-pinene oxidation products.
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