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Forensic Sci Int. 1997 Aug 4;88(2):125-31.

Rapid analysis of malathion in blood using head space-solid phase microextraction and selected ion monitoring.

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1
Department of Legal Medicine, Hiroshima University School of Medicine, Japan.

Abstract

A simple and rapid method for analysis of malathion in blood was developed using head space-solid phase microextraction (HS-SPME) and gas chromatography mass spectrometry/ electron impact ionization-selected ion monitoring (GC-MS/EI-SIM). A vial containing a blood sample, ammonium sulphate, sulphuric acid and fenitrothion as an internal standard, was heated at 90 degrees C for 15 min. The extraction fiber of the SPME was exposed for 5 min in the head space of the vial. The compounds absorbed on the fiber were detached by exposing the fibre in the injection port of GC-MS. A straight calibration curve was obtained between malathion concentrations of 2.5 to 50.0 micrograms g-1 in blood. No interfering substances were found, and the time for analysis was 40 min for one sample.

PMID:
9251231
[Indexed for MEDLINE]
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