RESUMO
AIM: To establish the fingerprint chromatography of Yujin Injection (Herba Houttuyniae, Flos Lonicerae) by GC. In the paper the authors examine the similarity among standard and sample chromatogra-phies. METHODS: GC was used to analyze the volatile ingredients, SGE 30QC3 colume (30m? 0.32mm? 0.5?m) was used with column temperature from 100℃ to 170℃ with 2℃?min -1 below 150℃ and 5℃?min -1 above 150℃, flow rate at 1.0mL?min -1 and detector temperature at 200℃. RESULTS: Standard fingerprint consisted of 17 marker peaks, the comparison of similarity's RSD to the injection of different batch had no more than 2%. CONCLUSION: According to the selected chromatographic conditions, a good fingerprint of the injection has been described. The method is simple, accurate with good reproducibility. It may be practical for the quality control of Yujin Injection.