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The use of flow-injection in hydride-generation atomic-absorption spectrophotometry
Dissertation (MSc)--University of Pretoria, 1989.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2022
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| _version_ | 1867613488302522368 |
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| access_status_str | Open Access |
| author2 | Van Staden, J.F. |
| author_browse | Van Staden, J.F. |
| author_facet | Van Staden, J.F. |
| collection | Thesis |
| dc_rights_str_mv | © 2021 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, 1989. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/83261 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:36:56.516Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| 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:2263/83261 The use of flow-injection in hydride-generation atomic-absorption spectrophotometry Van Staden, J.F. Marshall, Graham Dean UCTD Flow-injection hydride-generation atomic-absorption spectrophotometry Dissertation (MSc)--University of Pretoria, 1989. The method of analysis, where the generation of the gaseous hydrides of certain elements is used, has been thoroughly researched since its introduction in 1969. This technique is however, plagued with many interferences which necessitate cumbersome sample manipulation before accurate results are obtained. This has resulted in this technique being used only if all other options have failed. Three methods of in-line sample manipulation were studied in an attempt to change the status quo. The first method investigated was the simple in-line addition of reagents. Potassium iodide was added in this manner in order to overcome the interference resulting from the analyte being present in more than one oxidation state before generation of the hydride. Tellurium (IV) was used in the same manifold to extend the tolerance of noble metals in the determination of arsenic, selenium, and bismuth. Secondly, a small column packed with ion exchange resin was included in a new manifold which enabled the base metal interferences and certain interhydride forming element interferences to be overcome. Finally, the method of standard additions was automated in a flow-injection manifold which enabled the practice of this versatile approach without the usual sample preparation steps. Chemistry MSc Unrestricted 2022-01-12T06:00:56Z 2022-01-12T06:00:56Z 19/8/2021 1989 Dissertation * http://hdl.handle.net/2263/83261 en © 2021 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 University of Pretoria |
| spellingShingle | UCTD Flow-injection hydride-generation atomic-absorption spectrophotometry The use of flow-injection in hydride-generation atomic-absorption spectrophotometry |
| title | The use of flow-injection in hydride-generation atomic-absorption spectrophotometry |
| title_full | The use of flow-injection in hydride-generation atomic-absorption spectrophotometry |
| title_fullStr | The use of flow-injection in hydride-generation atomic-absorption spectrophotometry |
| title_full_unstemmed | The use of flow-injection in hydride-generation atomic-absorption spectrophotometry |
| title_short | The use of flow-injection in hydride-generation atomic-absorption spectrophotometry |
| title_sort | use of flow injection in hydride generation atomic absorption spectrophotometry |
| topic | UCTD Flow-injection hydride-generation atomic-absorption spectrophotometry |
| url | http://hdl.handle.net/2263/83261 |