【摘要】 采用顶空毛细管气相色谱法测定了β-胡萝卜素中4种有机溶剂乙醇、四氢呋喃、正庚烷、甲苯的残留量。色谱条件为HP-5柱(30m×0.25mm×0.25μm),氢火焰离子化检测器(FID),DMF溶剂,柱温50℃,进样口温度200℃,检测器温度250℃。4种残留有机溶剂均达到完全分离。该分析方法灵敏度、准确度均达到有机溶剂残留量的检测要求。更多还原

【Abstract】 The contents of four residual organic solvents inβ-carotene: ethanol,tetrahydrofuran,n-heptane and toluene,were determined by the headspace capillary gas chromatography which used HP-5 capillary column(30m×0.25mm×0.25μm),FID detector,N,N-dimethylformamide solvent,50℃oven temperature,200℃injector temperature,and 250℃detector temperature.The four residual organic solvents were completely separated,and the sensitivity and accuracy of this method satisfied the requirement of determining residual organic solvent amounts.更多还原