Article: New agricultural and food chemistry study findings have been published by scientists at Cornell University.

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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