Validation of a Manual Headspace Gas Chromatography Method for Determining Volatile Compounds in Biological Fluids
Author(s) -
Guilherme Vannucchi Portari,
Júlio Sérgio Marchini,
Alceu Afonso Jordão
Publication year - 2007
Publication title -
laboratory medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.332
H-Index - 28
eISSN - 1943-7730
pISSN - 0007-5027
DOI - 10.1309/ea876c1pvc0uxph0
Subject(s) - acetaldehyde , chromatography , gas chromatography , acetone , biological fluids , chemistry , methanol , acetonitrile , ethanol , organic chemistry
Background: We report the validation of a method for the determination of acetaldehyde, acetone, methanol, and ethanol in biological fluids using manual headspace sample introduction and an acetonitrile internal standard. Method: This method uses a capillary column (I = 30 m, I.D. = 0.25 mm, dF = 0.25 mu m) installed in a gas chromatography-flame ionization detector (GC-FID) apparatus with a run time of 7.5 minutes. Results: Analysis of the retention times and the resolution of the analyte peaks demonstrated excellent separation without widening of the peaks. Precision and accuracy were good (interassay precision < 15% and recovery between 85% and 115%) in both blood and urine. Conclusion: The method was linear (r > 0.09) over the analytical measurement range (AMR) of each analyte
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