云南民族大学学报（自然科学版）Issue(6)：468-471,475,5.DOI:12.3969/j.issn.1672-8513.2015.06.007
气相色谱法测定白酒中甲醇含量条件优化
Optimization of the determination conditions for the methanol content in liquor by gas chromatography
摘要
Abstract
This research uses the capillary -column gas chromatograph to optimize the determination conditions for the methanol content in liquor.The experimental results show that the optimal chromatographic condition for the carrier gas flow rate is 1.00 mL/min.,the column temperature 6 ℃ /min,the gasification temperature 300 ℃,the hydrogen flow 28 mL/min,and the detector′s temperature 300 ℃.The linear equation is y =66.209x +1.712 5, r =0.999 6,the minimum detection limit is 0.41 mg/L,the within -day precision is 2.07%,the day -to -day precision is 2.40%,the recoveries of the spiked samples are 83.88%—94.53%,and the average recovery is 89.38%.The methanol contents of ten samples are between 4.18 mg/L and 66.97 mg/L.关键词
气相色谱法/毛细管柱/甲醇Key words
gas chromatography/capillary column/methanol分类
医药卫生引用本文复制引用
许原..气相色谱法测定白酒中甲醇含量条件优化[J].云南民族大学学报（自然科学版）,2015,(6):468-471,475,5.基金项目
福建省科技计划重点项目（2010N0029）；南平市科技计划项目（N2013X01－2）． （）
