GC was established to determine the content of dially trisulfide (DATS) in Garlic oil. Garlic oil was refined by the column chromatography under the decompression.

• 建立了大蒜油的气相色谱(GC)方法测定大蒜油中二烯丙基三硫化物(DATS)的含量，并采用吸附剂减压柱层析法，用有机溶剂提取精制大蒜油，设计正交实验，优化提取精制工艺。