用气相色谱法测定玉清安液中冰片含量。以乙酸乙酯为提取液，正十四烷为内标，分别用10％OV-17和10％PEG-20M2种填充柱，可以产生不同峰形的分析结果。

Borneol in Yuqingan liquid was determined quantitatively by GC. The sample was first extracted by ethyl acetate and component determined by two types of column packed with 10%OV-17 and 10% PEG-20M/chromosorb WHP respectively. N-tetradecane was used as an internal standard. The method isparticularly advantageous for the determination of Borneol.