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以DMA作为内标物,用气相色谱内标定量法测定车用甲醇汽油中甲醇含量,并确定了最佳实验条件,用此方法测定标准曲线回归方程相关系数r=0.99919,RSD在0.17~0.58%之间,回收率在98.0%~101.8%之间。
Using DMA as internal standard, the content of methanol in car gasoline was determined by gas chromatography internal standard method and the best experimental conditions were determined. The correlation coefficient of standard curve regression equation was 0.99919 and RSD was 0.17 ~ 0.58 %, The recovery rate between 98.0% ~ 101.8%.