摘要
研究了气相色谱法分析燃料乙醇中的水分。色谱柱为Porapak Q填充柱(2m×!3mm),载气为氢气,最佳工作条件:柱温150℃,检测器温度150℃,进样器温度160℃,桥流100mA,载气流速为36mL/min,进样量为0.5μL;并利用外标法建立了标准曲线。结果表明,该法用于燃料乙醇中水分的测定,有较好的准确度和精密度;样品峰形对称,重现性好,方法简便,适合大量样品的测定。
The determination of water content in fuel ethanol by gas chromatography was introduced. A 2m×Ф3mm mm column packed with Porpak Q and hydrogen carrier gas was used and the optimal working conditions were as follows： colurnn temperature at 150℃,detector temperature at 150℃, sampling chamber temperature at 160℃,range as 100mA ,carry gas velocity as 36 mL/min ,and sampling quantity as 0.5μL .The content of water was detected by standard curve. The results suggested that it was a satisfactory method with high precision and accuracy, good reproductivity and symetrical peak shape of samoles. This method could be used in the determination of large amount of samoles.
出处
《酿酒科技》
北大核心
2007年第3期103-104,共2页
Liquor-Making Science & Technology
基金
河南省重大科技攻关项目"车用燃料乙醇生产的关键技术及开发应用研究"(0122032200)
关键词
分析检测
气相色谱
燃料乙醇
水分
analysis and determination
gas chromatograph
fuel ethanol
water
