A static headspace method of sampling coupled to a conventional instrumental analytical probe, gas chromatography mass spectrometry (GCMS), has been applied examine the volatile fraction above leaf tissue from Palicourea marcgravii, toxic Brazilian plant that causes sudden death in livestock, and two other surrogate species (Lippia alba Plectranthus spp.). 
 The unusual total ion chromatog...

AIM headspace centres comprise a significant innovation in community-based youth mental health service delivery in Australia. This paper examines the service activity of the first headspace centres to determine common and unique practice characteristics across headspace centres in this new approach to mental health service delivery. METHODS Data come from quarterly progress reports provided b...

Relative retention, volatility, and temporal release of volatile compounds taken from aldehyde, ester, and alcohol chemical classes were studied at 70 degrees C in model systems using equilibrium static headspace analysis and real time dynamic headspace analysis. These systems were medium-chain triglycerides (MCT), sunflower oil, and two structured systems, i.e., water-in-oil emulsion and L2 ph...

A sensitive static headspace gas chromatographic method was developed and validated for the determination of residual epichlorohydrin (ECH) in sevelamer hydrochloride (SVH) drug substance. This method utilized a Phenomenex Zebron ZB-WAX GC column, helium as carrier gas with flame ionization detection. The critical experimental parameters, such as, headspace vial incubation time and incubation t...

Equilibration time and temperature were the factors studied to choose the best conditions for analyzing volatiles in roasted ground Arabica coffee by a static headspace sampling extraction method. Three temperatures of equilibration were studied: 60, 80, and 90 degrees C. A larger quantity of volatile compounds was extracted at 90 degrees C than at 80 or 60 degrees C, although the same qualitat...