Medizinische Universität Graz - Research portal
Selected Publication:
SHR Neuro Cancer Cardio Lipid Metab Microb
Tellez, MR; Khan, IA; Schaneberg, BT; Crockett, SL; Rimando, AM; Kobaisy, M.
Steam distillation-solid-phase microextraction for the detection of Ephedra sinica in herbal preparations.
J Chromatogr A. 2004; 1025(1):51-56
Doi: 10.1016/S0021-9673(03)01035-5
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- Co-authors Med Uni Graz
- Crockett Sara
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- Abstract:
- A new method involving concurrent solid-phase microextraction combined with continuous hydrodistillation of essential oil was developed. This new methodology allowed for the detection by GC-MS of very small amounts of a diagnostic peak for the authentication of Ephedra sinica, in a short period of time and using only small sample sizes. This diagnostic peak was identified as 4-vinylanisole, and elucidated from the chromatographic profile allowed for the identification of a sample as E. sinica among other species investigated in this study. To the best of our knowledge this is the first report on using continuous solid-phase microextraction coupled to hydrodistillation for the investigation of essential oil components, and the first report of 4-vinylanisole as a marker compound for E. sinica. A total of 46 collections representing 21 species of Ephedra were studied.
- Find related publications in this database (using NLM MeSH Indexing)
- Automation -
- Ephedra sinica -
- Herbal Medicine -
- Oils, Volatile - isolation and purification
- Water -
- Find related publications in this database (Keywords)
- Ephedra sinica
- steam distillation
- extraction methods
- essential oils
- pharmaceutical analysis
- plant materials
- vinylanisole