Title: | GC-MS analysis of ethanol and other volatile compounds in micro-volume blood samples--quantifying neonatal exposure |
Author(s): | Cordell RL; Pandya H; Hubbard M; Turner MA; Monks PS; |
Address: | "Department of Chemistry, University of Leicester, Leicester, UK" |
DOI: | 10.1007/s00216-013-6809-1 |
ISSN/ISBN: | 1618-2650 (Electronic) 1618-2642 (Linking) |
Abstract: | "A static headspace gas chromatography coupled mass spectrometry (GC-MS) method was developed and fully validated for the quantitative measurement of acetaldehyde, acetone, methanol, ethanol and acetic acid in the headspace of micro-volumes of blood using n-propanol as an internal standard. The linearity of the method was established over the range 0.2-100 mg/L (R(2) > 0.99) and the limits of detection were 0.1-0.2 mg/L and lower limits quantification 0.5-1 mg/L. Precision and accuracies fell within acceptable limits (20 % for LLOQ and 15 %) for both intra- and inter-day analyses for all compounds except acetaldehyde which had inter-day variability of =25 %. The method was applied to analyse blood samples from neonatal patients receiving courses of ethanol excipient containing medications. Baseline levels of acetaldehyde, acetone, methanol and ethanol could be measured in patients before dosing commenced and an increase in levels of some volatiles were observed in several neonates after receiving ethanol-containing medications" |
Keywords: | "1-Propanol/blood Acetaldehyde/blood Acetates/blood Acetone/blood Ethanol/*blood Gas Chromatography-Mass Spectrometry/*methods Humans Infant, Newborn Limit of Detection Methanol/blood Sample Size Volatile Organic Compounds/*blood;" |
Notes: | "MedlineCordell, Rebecca L Pandya, Hitesh Hubbard, Marie Turner, Mark A Monks, Paul S eng G1100158/Medical Research Council/United Kingdom Research Support, Non-U.S. Gov't Validation Study Germany 2013/02/20 Anal Bioanal Chem. 2013 May; 405(12):4139-47. doi: 10.1007/s00216-013-6809-1. Epub 2013 Feb 19" |