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采用气相色谱法测定温中理气胶囊中丁香酸和桂皮醛的含量，并进行了回收率试验．此法准确、稳定、可靠．试验获得满意的效果。
The content of syringic acid and cinnamaldehyde in Wenzhong Liqi capsules was determined by gas chromatography and the recovery test was carried out. This method is accurate, stable and reliable. The test achieved satisfactory results.