title: High-resolution mass spectrometry: basic principles for using exact mass and mass defect for discovery analysis of organic molecules in blood, breath, urine and environmental media.
authors.affiliation: Exposure Methods and Measurements Division, National Exposure Research Laboratory, US Environmental Protection Agency, Research Triangle Park, NC, USA.
authors.forename: Joachim D
authors.initials: JD
authors.lastname: Pleil
authors.forename: Kristin K
authors.initials: KK
authors.lastname: Isaacs