Title page for ETD etd-11172006-094708


Document Type Master's Dissertation
Author Van der Merwe, Thomas Arnoldus
URN etd-11172006-094708
Document Title Sequential injection analysis of selected components in liquid fertilizers
Degree MSc (Chemistry)
Department Chemistry
Supervisor
Advisor Name Title
Prof J F van Staden
Keywords
  • liquid fertilizers
  • chemistry analytic
Date 1999-12-01
Availability unrestricted
Abstract
Sequential injection has, over the past eight years, developed into a viable alternative to flow-injection, but its full potential has not yet been fully realized. It developed out of existing flow-injection methods when a need for mechanically simple and robust flow-injection methodology arose. In this study the development of this method is discussed with its numerous advantages and disadvantages over existing flow-injection methods.

The theoretical basis on which this technique is based is outlined as well as parameters that influence the design of the manifold. With the manifold design principles established, the manifold is evaluated using real sample analysis, with liquid fertilizer as the source of selected elements. Adjustments made to existing flow-injection methods, for the determination of nitrite with sequential injection analysis, are discussed, while a new method is proposed for nitrate determination. The viability of solid-phase reductors and in situ preparation of reagents, combined with sequential injection analysis, is also studied.

1999, 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.

Please cite as follows:

Van der Merwe 1999, Sequential injection analysis of selected components in liquid fertilizers, MSc dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://upetd.up.ac.za/thesis/available/etd-11172006-094708/ >

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