Posters & Presentations

Measuring Stability of Combined Neutral and Acid Cannabinoids for Instrument Calibration

05 Nov 2025

There are several different comprehensive analytical reference materials available on the market that target various neutral and acidic cannabinoids for the analysis of cannabis commodities. The key to a successful analysis is starting with standards that are ISO-accredited, have strict environmental controls, verified purity, and stringent mix stability testing. Our first study tested the stability of individual mixes that have been stored at 0°C, 10°C, and 25°C for 28 days in comparison to the control standards that were stored at -20°C. The second part of the study tested the combined stability of the neutral cannabinoids mixed with the acidic cannabinoid standards stored at room temperature for 20 days. Data of all test results will be shown.

Authors

  • Dan DeLurio
  • Jason Fisher

    Jason Fisher is the Senior Reference Standards Product Manager for Restek. Jason has been with the company since 2006 and has supervised the packed column, inlet liner, LC columns, and air canister operations. Additionally, he managed the reference standards production and formulation chemistry teams prior to transitioning into product management in 2011.

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  • Gary Stidsen

    Gary has over 30 years of experience in chromatography, including sample preparation techniques, air sampling, and chromatographic analysis. He specializes in gas chromatography with an emphasis on the environmental and petroleum markets. Gary has been at Restek for almost 20 years and has played an instrumental role in developing many key products and numerous applications. During this time, he has served as the innovations lab manager, product manager for both the GC Column and air sampling lines, and director of research and innovation, where he was responsible for all aspects of research and new product development. Gary is currently our business manager overseeing reference standards, air sampling, and sample preparation.

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