Now showing items 11-20 of 30
The removal of copper and iron from wine using a chelating resin
(South African Society for Enology and Viticulture, 1986)
An insoluble polymer-supported absorbant, developed for the selective removal of excess copper and iron from wine was tested. Tests conducted on dry white wine with excessive copper and iron showed effective removal of 98% ...
Giant molecules : the marriage of the university with the community
(Stellenbosch : University of Stellenbosch, 1997)
Inaugural address delivered by Prof Ron Sanderson during 1997, Stellenbosch University.
The effect of iodo alkyl chain transfer agents on the seeded emulsion homo- and co-polimerisation of styrene and butyl acrylate
(Stellenbosch : Stellenbosch University, 1999)
ENGLISH ABSTRACT: A free-radical polymerisation process, which has characteristics of a living polymerisation system, as it is capable of producing polymers of pre-determined molecular masses with a narrow molecular ...
Mammalian exocrine secretions XI. Constituents of the preorbital secretion of klipspringer, Oreotragus oreotragus
(Springer Verlag, 1997-10)
The ketones 3-pentanone, 4-methyl-2-pentanone, 5-methyl-3-hexanone, 4-methyl-3-hexanone, and the esters ethyl propaneate, 2-methylpropyl acetate, ethyl 3-methylbutanoate, and 2-methylpropyl propanoate were identified as ...
Mammalian exocrine secretions. XII: Constituents of interdigital secretions of bontebok, Damaliscus dorcas dorcas, and blesbok, D. d. phillipsi
(Springer Verlag, 1999-09)
In addition to the nine compounds identified in the interdigital secretion of the bontebok, Damaliscus dorcas dorcas, in a previous study, 76 compounds belonging to different compound types, were identified in the interdigital ...
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 ...
Mammalian exocrine secretions IX : constituents of preorbital secretion of oribi, Ourebia ourebi
(Springer Verlag, 1995-08)
Using gas chromatography-mass spectrometry in conjunction with ancillary techniques such as chemical ionization with different reactant gases, determination of the position of double bonds by means of dimethyl disulfide ...
The separation of ethanol-hexane mixtures by pervaporation
(Stellenbosch : Stellenbosch University, 1900)
ENGLISH ABSTRACT: Pervaporation experiments, using polyvinyl alcohol (PVA) and modified PVA membranes cast on permeable polyether sulfone substrates, were performed with ethanol-hexane mixtures. The modified PVA membranes ...
Desensitering van hoe-energie materiale : HMX-gebaseerde PBX-formulerings vir toepassing in missielplofkoppe
(Stellenbosch : Stellenbosch University, 1990)
ENGLISH ABSTRACT: A range of fourteen pressable, polymer-bonded explosives <PBX's) were evaluated for application in a missile warhead. HMX (cyclotetramethylenetetranitramine) was identified as the most suitable high ...