What is it about?
Caffeine can be thermally extracted from beverage samples (white coffee, Energy drinks, Coca Cola, Pepsi Max) and separated and measured by GC/MS.
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Why is it important?
The concentration of caffeine in beverages can be very variable and it measurement is therefore important management for sport, religious reasons and health. Other methods of determining the concentration of caffeine require some from of off-line extraction step which time consuming.
Perspectives
The research was partly funded by the Royal Society of Chemistry's Analytical Chemistry Trust Fund.
Dr. Kevin Honeychurch
University of the West of England
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This page is a summary of: Extraction-Free, Direct Determination of Caffeine in Microliter Volumes of Beverages by Thermal Desorption-Gas Chromatography Mass Spectrometry, International Journal of Analytical Chemistry, April 2020, Hindawi Publishing Corporation,
DOI: 10.1155/2020/5405184.
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