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Pitfalls in drug testing by hyphenated low‐ and high‐resolution mass spectrometry
Author(s) -
Maurer Hans H.
Publication year - 2020
Publication title -
drug testing and analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.065
H-Index - 54
eISSN - 1942-7611
pISSN - 1942-7603
DOI - 10.1002/dta.2744
Subject(s) - analyte , chromatography , derivatization , mass spectrometry , sample preparation , chemistry , electrospray ionization , forensic toxicology , high resolution , remote sensing , geology
This paper reviews various pitfalls observed during developing, validation, application, and interpretation of drug testing approaches using GC–MS and low‐ and high‐resolution LC–MS. They include sampling and storage of body samples, sample adulteration and contamination, analyte stability, sample preparation without or with cleavage of conjugates, extraction, derivatization, internal standardization, false negative and positive results by GC–MS or LC–MS screening and/or confirmation procedures including artifact formation, ion suppression or enhancement by electrospray ionization, and finally pitfalls in data interpretation. Conclusions and prospects close the Tutorial.