Wednesday, January 22, 2014

Seminar: "Volatiles sampling and detection using SPME-GC-MS and PSPME-IMS" by Anna Raeva 1.24.14/ 2:00pm-3:00pm/ CREOL 102

Seminar: "Volatiles sampling and detection using SPME-GC-MS and PSPME-IMS" by Anna Raeva
Friday, January 24, 2014 2:00 PM to 3:00 PM
CREOL Room 102

Anna Raeva
 Florida International University

Solid phase microextraction (SPME) is a widely used technique for headspace sampling of volatiles. Its advantages include fast extraction times and high sensitivity. It can be easily coupled to a commercially available gas chromatograph – mass spectrometer (GC-MS). In this presentation, the application of SPME-GC-MS to sampling and detection of volatile compounds from the headspace of explosives and honey will be described. In addition to SPME-GC-MS, planar solid phase microextraction (PSPME) coupled to an ion mobility spectrometer (IMS) and its application to non-contact sampling and extraction of volatiles from explosives will be covered. PSPME is a sampling method that has been previously developed in our research group. Compared to SPME, PSPME offers an increased surface area and phase volume as well as the possibility of dynamic sampling. The performance of PSPME coupled to a bench-top IMS and portable IMS as well as SPME coupled to a bench-top GC-MS for sampling and detection of volatiles from explosives will be compared. Smokeless powders will be used as a model system of explosives.

Anna Raeva graduated with a BS and MS in Analytical Chemistry from Moscow State University. She graduated with a PhD in Analytical and Physical Chemsitry at the University of North Dakota in 2011, working on trace element partitioning during coal combustion using a new in situ/direct method, under the direction of Dr. Evguenii Kozliak and Dr. David Pierce. Since 2012, she has been a postdoctoral fellow in Dr. Jose Almirall's research group at Florida International University. During her appointment she worked on multiple projects: explosives detection using PSPME-IMS, manuka honey analysis using SPME-GC-MS and analysis and discrimination of printing inks using DART-MS, MALDI-MS, Py-GC-MS and FTIR. She is a member of ACS and ASMS.

For additional information:
Dr. Matthieu Baudelet
Research Assistant Professor of Optics
baudelet @ creol . ucf . edu

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