Determination of Peppermint Camphor,Borneol and Methy1 Salicylate in Tezhi Goupi Plaster by GC

Objective:The purpose is to develop GC method for the assay of Peppermint camphor,Borneol and Methyl Saliylate in Tezhi Goupi Plaster.Method:GC was applied to do quantitative analysis.Chromatographic conditions included resilience capillary of quartz with HP-INNOWAX.Flameionization detector(FID)was used for determination.Results:Peppermint camphor,Borneol and Methyl Saliylate were separated completely.The linear range of Peppermint camphor was 14.64~366.0 ng/mL.The average recovery of Peppermint camphor was 98.49% with RSD=2.86%(n=5).The linear range of Borneol was 28.48~712.0 ng/mL.The average recovery of Borneol was 98.50% with RSD=1.47%(n=5).The linear range of Methyl Salilylate was 42.912~1072.8 ng/mL.The average recovery of Methy1 Salicylate was 97.44% with RSD=2.68%(n=5).Conclusion:The established method is accurate and it can be applied to control quality of Tezhi Goupi Plaster.