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Latest Solid phase microextraction Stories

2011-07-08 14:19:02

Polycyclic aromatic hydrocarbons (PAH) are organic compounds that can be highly contaminant. They are found, amongst other places, in soils occupied by metallurgical or pharmaceutical industries and in waters polluted by ships' fuel. Chemist Dani Zuazagoitia has proposed simple techniques for analysing the impact of PAHs on a number of media, based on headspace solid phase microextraction (HS-SPME). He drew up the methodology, prepared it for the pertinent circumstances and applied it in the...

2008-09-30 03:00:20

By Zeng, Zhi Zhang, Han; Zhang, Tao; Chen, Jie Yu ABSTRACT A modified headspace solid-phase microextraction (SPME) method in conjunction with gas chromatography-mass spectrometry (GC- MS) has been used for the analysis of the flavor volatiles in three rice cultivars with low levels of digestible protein during cooking. Altogether, 77 volatile compounds were identified, of which 13 components were not previously reported in rice. A total of 61, 71, and 74 peaks, respectively, were assigned...

2007-08-30 06:19:19

By Antoniou, Chrysoula V Koukouraki, Elisavet E; Diamadopoulos, Evan ABSTRACT: The aim of this work was to develop a simple and fast analytical method for the determination of a wide range of organic compounds (volatile and semivolatile compounds) in municipal wastewater. The headspace-solid-phase microextraction (HS-SPME) and gas chromatography (with mass spectroscopy) was used for determination of the organic compounds. In this study, 39 organic compounds were determined, including 3...

2007-06-07 06:00:29

By Lupe, Fernanda A; Lemes, Ana C; Augusto, Fabio; Barata, Lauro E S Abstract The volatiles found in the headspace of Aeollanthus suaveolens were analyzed by solid phase microextraction coupled with GC/MS. This led to the identification of the 23 compounds. During steam distillation of the oil of A. Suaveolens, the very fragrant lactones, massoia lactone and δ- decalactone, were concentrated in the residue from which they can easily be extracted for perfumery purposes. Key Word...


Word of the Day
monteith
  • A large punch-bowl of the eighteenth century, usually of silver and with a movable rim, and decorated with flutings and a scalloped edge. It was also used for cooling and carrying wine-glasses.
  • A kind of cotton handkerchief having white spots on a colored ground, the spots being produced by a chemical which discharges the color.
This word is possibly named after Monteith (Monteigh), 'an eccentric 17th-century Scotsman who wore a cloak scalloped at the hem.'
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