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The Analysis of some South African essential oils by comprehensive two-dimentional gas chromatography (GCxGC)
Dissertation (MSc)--University of Pretoria, 2006.
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| Format: | Thesis |
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University of Pretoria
2013
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| _version_ | 1867613711634530304 |
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| access_status_str | Open Access |
| author2 | Rohwer, Egmont Richard |
| author_browse | Rohwer, Egmont Richard |
| author_facet | Rohwer, Egmont Richard |
| collection | Thesis |
| dc_rights_str_mv | © 2004, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc)--University of Pretoria, 2006. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/24133 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:40:29.643Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/24133 The Analysis of some South African essential oils by comprehensive two-dimentional gas chromatography (GCxGC) Rohwer, Egmont Richard upetd@ais.up.ac.za Zellelow, Amanuel Zeru Essences and essential oils south africa Essences and essential oils analysis Gas chromatography Essences and essential oils quality UCTD Dissertation (MSc)--University of Pretoria, 2006. By virtue of their fragrance and therapeutic nature, essential oils have gained great application in the cosmetic and pharmaceutical industries. These oils, as products consumed by the public for the general health and cosmetics, should be of high quality and unadulterated. In this project comprehensive two-dimensional gas chromatography (GCxGC) was used for the qualitative analysis of some South African essential oils. The main purpose of the project was to evaluate GCxGC for identification of essential oil constituents and for fingerprinting the different essential oils for quality control purposes. Essential oils of the same kind but of different origin were compared and the quantitative variation between their components was studied. Gas chromatography-time-of flight mass spectrometry (GC-TOFMS) as well as comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GCxGC-TOFMS) was used to help identify component peaks separated in the GCxGC instrument. Once certain precautions are taken and the delicate modulator is correctly optimized, the GCxGC results are reproducible and easy to interpret. Overall, the GCxGC technique utilized showed good promise for quality control of essential oils. Chemistry unrestricted 2013-09-06T16:44:31Z 2005-05-05 2013-09-06T16:44:31Z 2004-04-20 2006-05-05 2005-04-25 Dissertation Zellelow, A 2004, The Analysis of some South African essential oils by comprehensive two-dimentional gas chromatography (GCxGC), MSc dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/24133 > http://hdl.handle.net/2263/24133 http://upetd.up.ac.za/thesis/available/etd-04252005-163418/ © 2004, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf University of Pretoria |
| spellingShingle | Essences and essential oils south africa Essences and essential oils analysis Gas chromatography Essences and essential oils quality UCTD The Analysis of some South African essential oils by comprehensive two-dimentional gas chromatography (GCxGC) |
| title | The Analysis of some South African essential oils by comprehensive two-dimentional gas chromatography (GCxGC) |
| title_full | The Analysis of some South African essential oils by comprehensive two-dimentional gas chromatography (GCxGC) |
| title_fullStr | The Analysis of some South African essential oils by comprehensive two-dimentional gas chromatography (GCxGC) |
| title_full_unstemmed | The Analysis of some South African essential oils by comprehensive two-dimentional gas chromatography (GCxGC) |
| title_short | The Analysis of some South African essential oils by comprehensive two-dimentional gas chromatography (GCxGC) |
| title_sort | analysis of some south african essential oils by comprehensive two dimentional gas chromatography gcxgc |
| topic | Essences and essential oils south africa Essences and essential oils analysis Gas chromatography Essences and essential oils quality UCTD |
| url | http://hdl.handle.net/2263/24133 http://upetd.up.ac.za/thesis/available/etd-04252005-163418/ |