
Gas chromatography-mass spectrometry (GC-MS) coupled with headspace solid-phase microextraction )HS-SPME) links cocoa variety to chocolate aroma and flavor profiles.
Anthony Gravell of Natural Resources Wales discusses the principles of passive sampling and the advantages of the technique over spot sampling when screening water samples for environmental contaminants. He also gives an overview of the challenges and considerations that have to be made when performing LC–MS on passive sampling extracts.






