HEADSPACE TECHNIQUES IN MOUTH ODOR ANALYSIS
作者： D.A.M. Mackay , M.M. Hussein
DOI: 10.1016/B978-0-12-169050-2.50019-3
关键词: Mouth breath 、 Oral cavity 、 Flow resistance 、 Elution 、 Odor 、 Chromatography 、 Chemistry
摘要: Breath was analyzed for its sulfur-containing organic volatiles before and after ingestion of a number foods, using various headspace gas chromatographic techniques the flame photometric detector (FPD). These included direct injection, head space concentration via use short pre-columns (both porous polymer coated support types), also very long open columns low flow resistance. Elution absorbed from these into analytical column studied. Use standard pre-column, as an intermediate step to collect stripped pre-columns, permitted collection levels large volumes unimpeded “lung breath”. The pre-column used oral cavity, 40 cc “mouth
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