CLRA Alberta Chapter Lunch & Learn: AGAT Laboratories Presents a Look at Investigations Dealing with Complex Organic Mixtures

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Presentation Summary

Comprehensive two-dimensional gas chromatography with flame ionization detection (GC×GC-FID) is a powerful technique for studying complex chemical mixtures. In this presentation, we explore how GC×GC-FID can be used to identify source traits from samples rich in biogenic material, such as those containing plant or microbial components. These types of samples are often difficult to analyze because their many overlapping compounds make it hard to distinguish one source from another. Using GC×GC-FID, we can separate and visualize these compounds in much greater detail, revealing unique chemical patterns linked to specific sources. We will review some cases where the use of GC×GC-FID provides a valuable tool for environmental and analytical investigations dealing with complex organic mixtures.

About the Speaker

Desiree Hui, AGAT Laboratories

Desiree Hui, B. Sc. joined AGAT Laboratories in August 2021 as the Forensics and Specialty Chemistry Manager working out of the Forensics location in Calgary, Alberta. Desiree has 9+ years of experience as a Supervisor running a Special Chemistries Clean Lab specializing in Dioxins, PCBs, and other POPs in various matrices by HRMS. Desiree then spent 8+ years running a Fuels and Lubricants instrumentation department for the government of Alberta, the department specialized in Fuel Quality and providing analytical testing to confirm ASTM and CGSB Fuel Specifications. In addition to this Desiree was the Program Coordinator for the International Quality Assurance Exchange Program providing proficiency testing exchange samples to client’s word wide. Throughout this time, Desiree has acquired extensive experience in method development, method setup, and maintenance and troubleshooting of various types of analytical instrumentation (HRMS, GCMS, GCMSMS, LCMS, LCMSMS, HPLC, FID, ECD, etc). She is also well versed in all levels of laboratory management from quality assurance to being a technical resource for clients in a large variety of sample types and applications inclusive of both Canadian and International project.

Event Information

Date: November 17, 2025

Venue: The Bow, Mountain View Room, 500 Centre St S, Calgary, AB T2G 0E3 (View Map). This Lunch & Learn is also available virtually. Lunch to be catered by Spolumbo's.

Time: 11:45am - 1:30pm MT

Registration Fee(s):

Members (Corporate*, Individual, Retired)	$45
Non-Members	$60
Student Members	$25
Virtual	$20

*Corporate members, please log in to your corporate member account to manage employee accounts and provide access to your team members to register at the member rate. To inquire, please contact us.

Registration Deadline: November 13, 2025

For virtual attendees, the webinar access information will be sent to all registrants as soon as it becomes available. Please note that for group registration for the weblink; each individual attending must register. For in-person attendees, we will have a registration desk set up in front of security and will hand out security cards for entry.

Refund policy: No refunds may be processed on or after the registration deadline.

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CLRA Alberta Chapter Lunch & Learn: AGAT Laboratories Presents a Look at Investigations Dealing with Complex Organic Mixtures

Member Registration Non-Member Registration

Monday Nov 17 2025, 11:45 AM - 1:30 PM
The Bow
500 Centre St S
Calgary, Alberta
Canada
T2G 0E3

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