摘要
利用毛细管气相色谱测定葡萄酒中的高级醇,色谱条件为:载气流速1.4mL/min、柱温为程序升温65℃(Omin)-15℃/min-200℃(2min)、分流比50:1、进样量3μL;分析时间短,9min即可完成.以峰面积外标法定量,测得相对标准偏差为0.0120%～1.0707%,回收率在95.18%～102.25%之间,具有操作简便快捷、精密度好、准确度高的特点.
GC(gas chromatography) was applied to determine the higher alcohols in grape wine. The optimal separation condition were as follows: flow rate as 1.4mL/min, column temperature as temperature program: 65℃(0min)-15℃/min-200℃(2min), split rate as 50∶1 and sample size as 3μL; The time of determination was as short as 9 min.The quantitative determination was super area-external standard method. The RSD was 0.0120%~1.0707% and the recovery rate was 95.18%~102.25%. The determination results demonstrated that the method had the surperiorities of rapid, simple operation, good selectiveity and high accuracy.
出处
《食品科技》
CAS
北大核心
2005年第4期74-76,共3页
Food Science and Technology
关键词
葡萄酒
高级醇
气相色谱
外标法
grape wine
higher alcohols
gas chromatography
super area-external standard method
