面积校正归一法定量分析枞酸、长叶烯和碳酸二甲酯

Quantitative analysis of abietic acid, longifolene and dimethyl carbonate by area correction normalization method

摘要: 采用GC-1102型气相色谱仪,以长叶烯为基准物,运用修正面积归一法对枞酸、长叶烯和碳酸二甲酯进行了定量分析。结果表明,枞酸、碳酸二甲酯对于长叶烯的相对质量校正因子分别为2.6349和3.8827;考察了方法的精密度并进行了回收率实验,三种成分的最大相对标准偏差（RSD）为1.90%;枞酸、长叶烯和碳酸二甲酯的回收率分别为105.35%、93.09%和99.90%;比较了面积归一法与修正面积归一法分析结果与标样的相对偏差,二者的测定结果与实际含量的最大相对偏差分别为213.48%和1.64%。

Abstract: Area correction normalization method was used for quantitative analysis of abietic acid, longifolene and dimethyl carbonate by GC-1102 gas chromatography, longifolene as standard material.The results showed that the relative mass correction factors of abietic acid and dimethyl carbonate compared with longifolene were 2.6349 and 3.8827, respectively.The accuracy and recovery of this method were tested, and the maximum relative standard deviation (RSD) of three components was 1.90%, the recovery of abietic acid, longifolene and dimethyl carbonate were:105.35%, 93.09% and 99.09%.Area normalization method and area correction normalization method was compared through the relative deviation, the maximum relative deviation of two methods comparing the actual value were 213.48% and 1.64%.