Quality control method of compound platycodon grandiflorus ephedrine syrup (II)

The invention discloses a quality control method of compound platycodon grandiflorus ephedrine syrup (II). The problems of an existing quality detection method of related reagents of the compound platycodon grandiflorus ephedrine syrup (II) are improved, thin-layer identification of ephedrine hydrochloride and platycodon grandiflorus are mainly added, a headspace capillary gas chromatographic method is adopted for content measurement of menthol and ethyl alcohol, an HPLC method is adopted for content measurement of the ephedrine hydrochloride, and a nitrogen determination method is adopted forcontent measurement of ammonium chloride. The quality control method is reasonable in design, accurate, reliable, high in specificity and easy to operate, a novel quality control standard of the compound platycodon grandiflorus ephedrine syrup (II) is built according to the quality control method and can help to effectively control the medicine quality and improve the quality level of medicine inthe steps such as product