Abstract
Recent advances in analytical techniques have enabled the detection of drugs and drug metabolites in oral fluid specimens. Although GC–MS is still commonly used in practice, many laboratories have developed and successfully validated methods for LC–MS(–MS) that can detect a large number of compounds in the limited sample volume available. In addition, several enzyme immunoassays have been commercialized for the detection of drugs of abuse in oral fluid samples, enabling the fast screening and selection of presumably positive samples. A number of concerns are discussed, such as the variability in the volume of sample collected and its implications in terms of quantitative measurements, and the drug recoveries of the many different specimen collection systems on the market. Additional considerations that also receive attention are the importance of providing complete validation data with respect to analyte stability, matrix effect, and the choice of collection method.


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- 6-AM:
-
6-Acetylmorphine
- AGP:
-
α1-Acid glycoprotein
- AEME:
-
anhydroecgonine methyl ester
- APCI:
-
atmospheric pressure chemical ionization
- BDB:
-
3,4-(Methylenedioxyphenyl)-2-butanamine
- BE:
-
benzoylecgonine
- BSTFA:
-
N,O-Bis(trimethylsilyl)-trifluoroacetamide
- DMSO:
-
dimethyl sulfoxide
- DUID:
-
driving under the influence of drugs
- ECCI:
-
electron capture chemical ionization
- ECD:
-
electron capture detection
- EDDP:
-
2-Ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine
- EEE:
-
ecgonine ethyl ester
- EI:
-
electron impact
- EIA:
-
enzyme immunoassay
- EME:
-
ecgonine methyl ester
- ESI:
-
electrospray ionization
- FA:
-
formic acid
- GC-MS:
-
gas chromatography–mass spectrometry
- GC-GC-MS:
-
two-dimensional gas chromatography–mass spectrometry
- GC-MS-MS:
-
gas chromatography–tandem mass spectrometry
- HFBA:
-
heptafluorobutyric acid anhydride
- HFIP:
-
1,1,1,3,3,3-Hexafluoro-2-propanol
- HMA:
-
3-Hydroxy-4-methoxyamphetamine
- HMMA:
-
4-Hydroxy-3-methoxymethamphetamine
- HPLC:
-
high-pressure liquid chromatography
- LC-MS:
-
liquid chromatography–mass spectrometry
- LC-MS-MS:
-
liquid chromatography–tandem mass spectrometry
- LLE:
-
liquid–liquid extraction
- LOD:
-
limit of detection
- LOQ:
-
limit of quantification
- LSD:
-
lysergic acid diethylamide
- MBDB:
-
N-Methyl-1-(3,4-methylenedioxyphenyl)-2-butanamine
- MBTFA:
-
N-Methyl-bis(trifluoramide)
- MDA:
-
3,4-Methylenedioxyamphetamine
- MDEA:
-
3,4-Methylenedioxyethylamphetamine
- MDMA:
-
3,4-Methylenedioxymethamphetamine
- MSTFA:
-
N-Methyl-N-trimethylsilyl-trifluoroacetamide
- MTBSTFA:
-
N-Methyl-N-tert-butyldimethylsilyl-trifluoroacetamide
- NCI:
-
negative chemical ionization
- NPD:
-
nitrogen–phosphorus detection
- PCI:
-
positive chemical ionization
- PFPA:
-
pentafluoropropionic anhydride
- PFBPI:
-
N-Pentafluorobenzoyl-S-(−)-prolyl-1-imidazolide
- QTOF:
-
quadrupole-time-of-flight
- ROC:
-
receiver operating curves
- SPE:
-
solid-phase extraction
- SPME:
-
solid-phase microextraction
- TBAH:
-
Tetrabutyl-ammonium hydroxide
- TBDMCS:
-
tert-Butyldimethylchlorosilane
- TFAA:
-
trifluoroacetic anhydride
- THC:
-
delta9-tetrahydrocannabinol
- THC-COOH:
-
11-Nor-delta9-tetrahydrocannabinol-9-carboxylic acid
- TMAH:
-
tetrabutylammonium hydroxide
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Samyn, N., Laloup, M. & De Boeck, G. Bioanalytical procedures for determination of drugs of abuse in oral fluid. Anal Bioanal Chem 388, 1437–1453 (2007). https://doi.org/10.1007/s00216-007-1245-8
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DOI: https://doi.org/10.1007/s00216-007-1245-8

