Analysis of Essential Oils from Hypericum sampsonii Hance by GC/MS

Objective To study the chemical constituents of essential oils in Hypericum sampsonii Hance.Methods Steam distillation was used to extract the essential oils. The chemical constituents were analyzed by GCMS. Results Seventy-three compounds were isolated and fifty-six were identified representing 81. 7% of the total essential oils from Hypericum sampsonii. The main constituents were ethyl palmitate( 7. 49%),benzaldehyde( 6. 32%),naphthalene( 5. 17%),n-nonane( 4. 70%),n-undecane( 4. 63%),and acetophenone( 4. 56%).Conclusion The analysis of constituents of essential oils from Hypericum sampsonii Hance can contribute to quality control and further development of Hypericum sampsonii Hance.