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2010•Unpublished venueRequires access

GC-MS analysis of volatile oils of Tibetan medicine Rhododendron primulaeflorum Bur. et Franch

Zhou Xian-li

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Abstract

Objectives:To analyze the chemical constituents of the volatile oils of Rhododendron primulaeflorum Bur.et Franch.and provide a scientific evidence for the deep exploration and usage of it.Methods:The volatile oils of Rhododendron primulaeflorum Bur.et Franch.were extracted by water steam distillation and its chemical constituents were separated and identified by GC-MS.The content of each constituent was determined by area normalizetion method.Results:Sixty five peaks were separated and fifty nine components were identified,which constituted about 97.50% of the total volatile oils.Conclusions:The main compounds are β-pipene(13.81%),α-pipene(12.86%),limonene(8.18%),β-caryoph-yllene(7.55%),myrcene(6.36%),naphthalene(4.63%),(+)-ledol(4.44%),γ-terpipene (4.23%),(+)-aromadendr-ene(3.94%) and α-terpineol(2.74%).

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What this paper is about

Objectives:To analyze the chemical constituents of the volatile oils of Rhododendron primulaeflorum Bur.et Franch.and provide a scientific evidence for the deep exploration and usage of it.Methods:The volatile oils of Rhododendron primulaeflorum Bur.et Franch.were extracted by water steam distillation and its chemical constituents were separated and identified by GC-MS.The content of each constituent was determined by area normalizetion method.Results:Sixty five peaks were separated and fifty nine components were identified,which constituted about 97.50% of the total volatile oils.Conclusions:The main compounds are β-pipene(13.81%),α-pipene(12.86%),limonene(8.18%),β-caryoph-yllene(7.55%),myrcene(6.36%),naphthalene(4.63%),(+)-ledol(4.44%),γ-terpipene (4.23%),(+)-aromadendr-ene(3.94%) and α-terpineol(2.74%).

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Available abstract

Objectives:To analyze the chemical constituents of the volatile oils of Rhododendron primulaeflorum Bur.et Franch.and provide a scientific evidence for the deep exploration and usage of it.Methods:The volatile oils of Rhododendron primulaeflorum Bur.et Franch.were extracted by water steam distillation and its chemical constituents were separated and identified by GC-MS.The content of each constituent was determined by area normalizetion method.Results:Sixty five peaks were separated and fifty nine components were identified,which constituted about 97.50% of the total volatile oils.Conclusions:The main compounds are β-pipene(13.81%),α-pipene(12.86%),limonene(8.18%),β-caryoph-yllene(7.55%),myrcene(6.36%),naphthalene(4.63%),(+)-ledol(4.44%),γ-terpipene (4.23%),(+)-aromadendr-ene(3.94%) and α-terpineol(2.74%).

Key concepts: Chemistry, Steam distillation, Limonene, Gas chromatography–mass spectrometry, Chemical constituents, Chromatography, Myrcene, Traditional medicine

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