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An improved method for extraction of thinner components in human whole blood and urine samples by headspace solid-phase microextraction (SPME) with a Carboxen/polydimethylsiloxane-coated fiber is presented. The body fluid samples, containing ethyl acetate, benzene, 1-butanol, toluene, butyl acetate, isoamyl acetate and ethylbenzene as internal standard (IS), were heated at 70 o C in a silicone-rubber...
Ethanol can be extracted from human whole blood and urine by headspace solid-phase microextraction (SPME) with a Carboxen-polydimethylsiloxane-coated fiber. Whole-blood containing ethanol, with isobutanol as internal standard (IS), is heated at 60 o C in the presence of (NH 4 ) 2 SO 4 and sodium dithionite. A Carboxen-polydimethylsiloxane-coated SPME fiber is then...
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