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High-Resolution Benchtop Mass Spectrometer

By using the proprietary GCMateII high-resolution GC/MS selected ion monitoring (SIM) technique to analyze stilbenes, a USDA research chemist has identified pterostilbene as a naturally occurring compound in blueberries. Pterostilbene is a strong antioxidant and cholesterol inhibitor that also has cancer chemopreventive properties. Dr. Agnes Rimando of the USDA's Agricultural Research Service in Oxford, Mississippi analyzed two microliter injection volumes of ethyl acetate extract of berries from three U.S. locations and C18 column eluate of berries from Canada using the GCMate II, a benchtop mass spectrometer capable of high-resolution SIM for highly-specific detection of target compounds. She and her colleagues have linked ptersotilbene to potential cancer-fighting properties. The compound also appears to have many of the same cholesterol-fighting properties found in the antioxidant resveratrol, known mostly through analysis of grapes and red wines. Resveratrol was also found in the blueberry extracts, along with piceatannol.
JEOL Inc.
11 Dearborn Rd.
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