Study on Pit Mud Lixivium from Different Years Pits by Gas Chromatography Mass Spectrometry

This thesis analyzed pit mud lixivium of 20 years, 100 years, 200 years, and 300 years pit age by gas chromatography-mass spectrometry technology. Through analyzing experimental results, 20 kinds of substances were obtained, and 10 kinds of substances were mutual in all pit mud samples. After carefully analyzing many substances in every pit age, the conclusion was obtained that the longer the pit mud had been stored, the more substances it had, the more complicated components were in pit mud, the higher metabolize diversity microorganism had, and the better quality the liquor had.