Simultaneous Gas Chromatographic Analysis of Ethanol and Acetic Acid in Vinegar

식초의 에탄올 및 초산 함량의 동시분석

  • 윤희남 (제일제당(주) 건강식품연구소)
  • Published : 1998.12.01


A method is developed for simultaneously determining ethanol and acetic acid in vinegars by quantitative packed-column gas chromatography. Vinegars were filtrated and directly chromatographed on a $2\;m{\times}2\;mm$ stainless steel column packed with Tenax-GC, 80/100. Ethanol, isopropy alcohol as an internal standard, and acetic acid were completely separated within 20 min of running time without any interfering peaks. The accuracy of packed column gas solid chromatography (PCGSC) was discussed compared to the analytical data by titration, high performance liquid chromatography and capillary column gas liquid chromatography (CCGLC).


Tenax-GC;packed column;gas chromatography;ethanol;acetic acid