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Andrew Crouch
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Characterisation of volatile components of Pinotage wines using comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC× GC–TOFMS)
BT Weldegergis, A De Villiers, C McNeish, S Seethapathy, A Mostafa, ...
Food Chemistry 129 (1), 188-199, 2011
1162011
Solid phase extraction in combination with comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry for the detailed investigation of …
BT Weldegergis, AM Crouch, T Górecki, A De Villiers
Analytica Chimica Acta 701 (1), 98-111, 2011
1042011
Development of a solid-phase extraction procedure for the simultaneous determination of polyphenols, organic acids and sugars in wine
A De Villiers, F Lynen, A Crouch, P Sandra
Chromatographia 59, 403-409, 2004
982004
Classification of South African red and white wines according to grape variety based on the non-coloured phenolic content
A De Villiers, P Majek, F Lynen, A Crouch, H Lauer, P Sandra
European Food Research and Technology 221, 520-528, 2005
972005
Stir bar sorptive extraction combined with GC-MS analysis and chemometric methods for the classification of South African wines according to the volatile composition
A Tredoux, A de Villiers, P Májek, F Lynen, A Crouch, P Sandra
Journal of agricultural and food chemistry 56 (12), 4286-4296, 2008
952008
Preparation and surface characterization of Ti/SnO2–RuO2–IrO2 thin films as electrode material for the oxidation of phenol
ME Makgae, CC Theron, WJ Przybylowicz, AM Crouch
Materials Chemistry and Physics 92 (2-3), 559-564, 2005
942005
The analysis of estrone and 17β-estradiol by stir bar sorptive extraction–thermal desorption–gas chromatography/mass spectrometry: Application to urine samples after oral …
A Stopforth, BV Burger, AM Crouch, P Sandra
Journal of Chromatography B 856 (1-2), 156-164, 2007
622007
Sol–gel preparation and characterisation of mixed metal tin oxide thin films
PGL Baker, RD Sanderson, AM Crouch
Thin solid films 515 (17), 6691-6697, 2007
612007
Performance of sol–gel Titanium Mixed Metal Oxide electrodes for electro-catalytic oxidation of phenol
ME Makgae, MJ Klink, AM Crouch
Applied Catalysis B: Environmental 84 (3-4), 659-666, 2008
602008
A rapid method of diagnosing pulmonary tuberculosis using stir bar sorptive extraction–thermal desorption–gas chromatography–mass spectrometry
A Stopforth, A Tredoux, A Crouch, P van Helden, P Sandra
Journal of Chromatography A 1071 (1-2), 135-139, 2005
592005
Atmospheric mercury measurements at cape point, south africa
PGL Baker, EG Brunke, F Slemr, AM Crouch
Atmospheric Environment 36 (14), 2459-2465, 2002
582002
Chemometric investigation of the volatile content of young South African wines
BT Weldegergis, A de Villiers, AM Crouch
Food Chemistry 128 (4), 1100-1109, 2011
532011
Acrolein in wine: Importance of 3-hydroxypropionaldehyde and derivatives in production and detection
R Bauer, DA Cowan, A Crouch
Journal of agricultural and food chemistry 58 (6), 3243-3250, 2010
472010
Application of a headspace sorptive extraction method for the analysis of volatile components in South African wines
BT Weldegergis, AGJ Tredoux, AM Crouch
Journal of agricultural and food chemistry 55 (21), 8696-8702, 2007
452007
Quantification of testosterone and epitestosterone in human urine samples by stir bar sorptive extraction–thermal desorption–gas chromatography/mass spectrometry: Application …
A Stopforth, CJ Grobbelaar, AM Crouch, P Sandra
Journal of separation science 30 (2), 257-265, 2007
442007
Urinalysis of 4-hydroxynonenal, a marker of oxidative stress, using stir bar sorptive extraction–thermal desorption–gas chromatography/mass spectrometry
A Stopforth, BV Burger, AM Crouch, P Sandra
Journal of Chromatography B 834 (1-2), 134-140, 2006
432006
Analysis of volatiles in Pinotage wines by stir bar sorptive extraction and chemometric profiling
BT Weldegergis, AM Crouch
Journal of agricultural and food chemistry 56 (21), 10225-10236, 2008
412008
A robust capillary electrophoresis method for the determination of organic acids in wines
A De Villiers, F Lynen, A Crouch, P Sandra
European Food Research and Technology 217, 535-540, 2003
402003
Electrochemical study of cerium (IV) in the presence of ethylenediaminetetraacetic acid (EDTA) and diethylenetriaminepentaacetate (DTPA) ligands
P Modiba, AM Crouch
Journal of Applied Electrochemistry 38, 1293-1299, 2008
392008
The use of GC× GC with time‐of‐flight mass spectrometry to investigate dienes and Diels–Alder polymerisation products in high‐temperature Fischer–Tropsch‐based fuels
R van der Westhuizen, A Crouch, P Sandra
Journal of separation science 31 (19), 3423-3428, 2008
372008
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