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Department of Chemistry
Dr Yvette Naudé
 

Tel: + 27 12 420 2517
Email: yvette.naude@up.ac.za
Office: Natural Sciences 1, Room 2.19
Position: Manager - Separation Science
Academic qualifications: PhD (Chemistry)

 

Research interests: Environmental Forensics, DDT, Persistent Organic Pollutants, Endocrine Disrupting Chemicals, Fairy circles of Namibia, Aroma compounds and Olfactometry – especially the study of synergistic odour effects, Multi-dimensional chromatography. Development of samplers.

Publications over the past five years:

Journal articles:

Naudé, Y. and Rohwer, E.R., 2013. Investigating the coffee flavour in South African Pinotage wine using novel offline olfactometry and comprehensive gas chromatography with time of flight mass spectrometry. Journal of Chromatography A 1271, 176-180. http://ac.els-cdn.com/S0021967312017499/dx.doi.org/10.1016/j.chroma.2012.11.019

L. van der Wat, M. Dovey, Y. Naudé and P.B.C. Forbes. Investigation into the Aroma of Rosemary using Multi-Channel Silicone Rubber Traps, Off-line Olfactometry and Comprehensive Two-dimensional Gas Chromatography-Mass Spectrometry, S. Afr. J. Chem., 2013, 66, 21–26

Naudé, Y. and Rohwer, E.R., 2012. Novel method for determining DDT in vapour and particulate phases within contaminated indoor air in a malaria area of South Africa. Analytica Chimica Acta 730, 112–119. DOI: 10.1016/j.aca.2012.02.054

Naudé, Y. and Rohwer, E.R., 2012.   Two multidimensional chromatographic methods for enantiomeric analysis of o,p’-DDT and o,p’-DDD in contaminated soil and air in a malaria area of South Africa. Analytica Chimica Acta 730, 120– 126. DOI:10.1016/j.aca.2012.03.028

Naudé, Y., Van Rooyen, M.W., Rohwer, E.R., 2011.  Evidence for a geochemical origin of the mysterious circles in the Pro-Namib desert.  Journal of Arid Environments 75, 446-456. doi:10.1016/j.jaridenv.2010.12.018

Naudé, Y., Van Aardt, M., Rohwer, E.R., 2009.  Multi-channel open tubular traps for headspace sampling, gas chromatographic fraction collection and olfactory assessment of milk volatiles. Journal of Chromatography A, 2798–2804. doi:10.1016/j.chroma.2008.09.065

Sivakumar, D., Naudé, Y., Rohwer, E.R., Korsten, L., 2008.  Volatile compounds, quality attributes, mineral composition and pericarp structure of South Africa litchi export cvs. Mauritius and McClean’s Red.  Journal of the Science of Food and Agriculture 88, 1074–1081. DOI: 10.1002/jsfa.3201

Technical magazines

GERSTEL Solutions Worldwide Magazine (2012): Ghost hunters in the Desert Uncovering mysterious natural phenomena using Thermal Desorption GC/MS.

GERSTEL Aktuell (2012): Geisterjäger in der Wüste Mit Thermodesorptions-GC/MS auf der Spuren rätselhafter Naturphänomene.

Books and/or chapters in books:

Naudé, Y. and Rohwer, E.R., 2011. The olfactometric analysis of milk volatiles with a novel gas chromatography based method – a case study in synergistic perception of aroma compounds.  In: Marsili, R. (Ed.), Flavor, Fragrance, and Odor Analysis, Second Edition.  Taylor & Francis Group LLC, Chapter 5. In press.

Conference proceedings:

12th International Chemistry Conference Africa 2013, Pretoria, South Africa. Determination of DDT in contaminated indoor air and outdoor soil in a malaria area of South Africa – a new environmental forensics tool. Yvette Naudé and Egmont Rohwer.

The 36th International Symposium on Capillary Chromatography 2012, Riva del Garda, Italy and ChromSAAMS 2012, Dikhololo, South Africa. Investigating the coffee flavour in South African pinotage wine using novel offline olfactometry and TDS-GCXGC-TOFMS. Yvette Naudé and Egmont Rohwer.

ChromSAAMS 2012, Dikhololo, South Africa. Investigating the origin of the enigmatic fairy circles of Namibia by using a simple silicone rubber sampling device and GCXGC-TOFMS. Yvette Naudé, Gretel van Rooyen and Egmont Rohwer.

IUFOST 2010, Cape Town, South Africa
Naudé, Y. and Rohwer E.R.  The analysis of pinotage wine aromas by a novel fractionating olfactometric method combined with comprehensive two dimensional gas chromatography – mass spectrometry

International Symposium Analitika, Stellenbosch, South Africa 2010
Versatile silicone rubber traps for trace organic analysis in a Chromatography and Mass Spectrometry laboratory. E Rohwer, Y Naudé and P Forbes. Analitika 2010 symposium 5-9 December 2010, Stellenbosch.

SACI 2011
Silicone rubber sampling of trace environmental pollutants for analysis by Gas Chromatography - Mass Spectrometry (GC-MS). E Rohwer, Y Naudé and P Forbes. SACI 2011, the 40th South African Chemical Institute (SACI) and Federation of African Societies (FACS) meeting: a prelude event to the international year of chemistry; 17-21 January 2011, Johannesburg. Abstract KN 11 in the Proceedings page 46

The 34th International Symposium on Capillary Chromatography, Riva del Garda, Italy 2010
Naudé, Y. and Rohwer, E.R. New multidimensional chromatographic methods for enantiomeric analysis of o,p’-DDT/D in soil.

International Symposium Analitika 2010, Stellenbosch, South Africa
Naudé, Y. and Rohwer, E.R. New multidimensional chromatographic methods for enantiomeric analysis of o,p’-DDT/D in soil.

International Mass Spectrometry Conference (IMSC 2009), Bremen, Germany
A new method for quantitative determination of free molecular and particle bound DDT in contaminated indoor air by GC-MS Yvette Naudé, Riana Bornman and Egmont R. Rohwer 

ChromSAAMS conference, Bela Bela, South Africa, 2008
A new sampling method for the detection of DDT in contaminated indoor air Yvette Naudé, Riana Bornman and Egmont Rohwer.

ChromSAAMS conference, Bela Bela, South Africa, 2008
The olfactory assessment of milk volatiles by a new method of capturing and releasing gas chromatographic fractions Yvette Naudé, Marleen van Aardt, Elna M. Buys, Riëtte de Kock and Egmont R. Rohwer.
 
The 32nd International Symposium on Capillary Chromatography, Riva del Garda, Italy 2008
The olfactory assessment of milk volatiles by a new method of capturing and releasing gas chromatographic fractions Yvette Naudé, Marleen van Aardt, Elna M. Buys, Riëtte de Kock and Egmont R. Rohwer.

Media:


Fairy circles of Namibia: 

Radio 702 interview for the Midday Report - 3 April 2013

Business Day (2013), Livescience.com (New York) (2013), Der Spiegel (Germany) (2013) 

Televised appearance in National Geographic Wild – Wild Case Files 2: Fairy Circles of Namibia (Alien Road Kill).