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Article: New agricultural and food chemistry study findings have been published by scientists at Cornell University.
- Article from:
- Agriculture Week
- Article date:
- October 15, 2009
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According to recent research from the United States, "We describe an optimized protocol for analysis of the herbaceous smelling 3-alkyl-2-methoxypyrazines (MPs) in whole berries that predicts MPs in resultant red wines. Berries are homogenized by bead-milling with a deuterated standard prior to headspace solid phase microextraction (HS-SPME) and quantification by two-dimensional gas Chromatography time-of-flight-mass-spectrometry (GC x GC-TOF-MS)."
"In the case of 3-isopropyl-2-methoxypyrazine (IPMP), GC x GC-TOF-MS successfully resolved interferences that coeluted with the analyte in the first dimension. HS-SPME parameters (pH, queue time, incubation time, ...
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