Fig. 3From: Determination of volatile alkylpyrazines in microbial samples using gas chromatography-mass spectrometry coupled with head space-solid phase microextractionThe chromatograms of VAPs in the standard mixture analyzed on the DB-5MS (a) and DB-WAX (b) columns. Peak identities as follows: 1. MP, 2. DMP, 3. EP, 4. EDMP, 5. IPMP, 6. EEPBack to article page