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Structure elucidation of and synthetic approaches to monatin, a metabolite from Schlerochiton ilicifolius
(Stellenbosch : Stellenbosch University, 1990-12)
ENGLISH ABSTRACT: Monatin, or 4-hydroxy-4-(3-indolylmethyl) glutamic acid is a high-intensity sweet tasting
amino acid found in the root bark of the indigenous plant Schlerochiton ilicifolius. In the
thesis the isolation, ...
Electrochemical purification of hazardous organic compounds from wastewater by means of novel electrode materials and a solid-polymer-electrolyte-reactor system
(Stellenbosch : Stellenbosch University, 1999-12)
ENGLISH ABSTRACT: A novel sol-gel Ti/Sn02/Sb205 electrode material for the electro catalytic oxidation
(combustion) of hazardous organic compounds in water has been designed and characterised.
Kinetic studies revealed ...
Selective separation of elements and radioisotopes by ion exchange chromatography
(Stellenbosch : Stellenbosch University, 2002-12)
ENGLISH ABSTRACT: The equilibrium distribution coefficients of 32 metal ions [Al(llI), As(V), CdïIl),
Ce(III), Ce(IV), Co(n), Cr(III), Cu(II), Fe(III), Ga(III), Ge(IV), !n(III), La(III), Mn(II),
Mo(VI), Nb(V), Ni(II), ...
Stir bar sorptive extraction for the analysis of beverages and foodstuffs
(Stellenbosch : University of Stellenbosch, 2008-03)
The main goal of this study was the development of new technologies based on modern
analytical techniques for analysis of volatiles in wines. Due to the exponential growth of
the wine industry and consumer demands for ...
Novel methods of chemical speciation of Pt(IV/II) complexes in acid halide-rich solutions by ion-pair RP-HPLC coupled to ICP-OES/MS in conjunction with 195Pt NMR
(Stellenbosch : Stellenbosch University, 2013-03)
ENGLISH ABSTRACT: In this work a robust reversed phase ion-pairing high performance liquid chromatographic
(RP-HPLC) method has been developed for the separation, characterization and quantification of
all possible ...
Panaceas and pitfalls in electrodriven chromatographic techniques
(Stellenbosch : University of Stellenbosch, 2007-12)
In this thesis the main capillary electrodriven chromatographic techniques (i.e.
Capillary Electrochromatography CEC, Micellar Electrokinetic Chromatography
MEKC and Microemulsion Electrokinetic Chromatography MEEKC) ...
Chemical speciation of RhIII complexes in acidic, halide-rich media by means of 103Rh NMR spectroscopy : the importance of speciation in the selective separation and recovery of rhodium
(Stellenbosch : Stellenbosch University, 2013-12)
ENGLISH ABSTRACT: In this thesis, the recovery of RhIII from both synthetically prepared and authentic
industrial PGM-containing solutions was systematically investigated via organic precipitation
methods using several ...
Analysis of vegetable oils, seeds and beans by TGA and NMR spectroscopy
(Stellenbosch : University of Stellenbosch, 2011-03)
ENGLISH ABSTRACT: Due to the commercial, nutritional and health value of vegetable oils, seeds and beans, the
analysis of their components is of much interest. In this dissertation oil-containing food
products, specifically ...
The synthesis of selective immobilized ligands for the extraction of toxic metal ions from water doped with these contaminants
(Stellenbosch : Stellenbosch University, 2014-12)
ENGLISH ABSTRACT: In this study, two novel ligands were synthesized and separately two crown ether derivatives were all immobilized onto four different silica substrates. These immobilized ligand systems were used to extract ...