面积校正归一法定量分析松节油主要成分

Quantitative analysis of main components of turpentine by area correction normalization method

采用GC-1102型气相色谱仪、FID检测器、SIMPLCITY-5石英玻璃毛细管柱(30m×0.32mm×0.25μm)和面积校正归一法对松节油中的4种主要组分α-蒎烯、β-蒎烯、对伞花烃和长叶烯进行了定量分析。结果表明,α-蒎烯、β-蒎烯和长叶烯相对于对伞花烃的相对质量校正因子分别为1.0891、1.0879、1.0798;比较了面积校正归一法和面积归一法分析结果与标样值的相对偏差,两者的分析结果与标样值的最大相对偏差分别为1.59%和4.43%;考察了方法的精密度和回收率,4种组分的相对标准偏差(RSD)分别为0.78%、0.59%、1.04%、2.62%;加标回收率分别为99.52%、101.91%、100.97%、100.70%。

α-Pinene, β-Pinene, p-Cymene and Iongifolene were determined using area correction normalization method by GC-1102 gas chromatography with FID detector and SIMPLCITY-5 capillary column（30 m× 0.32 mm×0.25 um）. The results showed that the relative mass correction factors compared with p-Cymene were： 1.0891, 1.0879, and 1.0798, respectively. The relative deviation of area correction normalization method and area normalization method was compared, the maximum relative error of two methods analysis value comparing standard were 1.59% and 4.43%. The accuracy and recovery were tested, and the relative standard deviation （RSD） of the four components were 0.78%, 0.59%, 1.04%, 2.62%, the recovery of standard addition were： 99.52%, 101.91%, 100.97%, 100.70%, separately.