## Abstract The usefulness and ease of utilizing supercritical fluid extraction (SFE) directly coupled to capillary gas chromatography (GC) as quantitative or qualitative analytical problemβsolving tools will be demonstrated. As an alternative to conventional liquid solvent extractions, SFE present
Supercritical fluid extraction and capillary gas chromatography of the rhizomes of Z. zerumbet
β Scribed by Umi K. Ahmad; Hasnah M. Sirat; M. Marsin Sanagi; Roger M. Smith
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 425 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1040-7685
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Supercritical carbon dioxide at 60Β°C and 200 bar has been used to extract the nonpolar components of the dried rhizomes of Zingiber zerumbet. The extract could be fractionated by placing an onβline silica column before the pressure relief valve. The extracts were analyzed using capillary GC and GCβMS. This technique provides an effective means of sample preparation and a relatively fast way of determining the constituents of plant materials.
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## Abstract A key feature differentiating analytical supercritical fluid extraction (SFE) from conventional liquid extraction is the possibility of varying the solvent strength of a supercritical fluid to achieve selective extractions of specific target compounds, or functional classes of compound,
## Abstract Capillary supercritical fluid chromatography (SFC) with carbon dioxide as the mobile phase has been used to separate a mixture of limonoid standards. Chromatographic conditions were optimized to enable analysis of plant extracts. The seed of __Aphanamixis polystacha__ (Meliaceae) and th