2FDCK	2-fluorodeschloroketamine
2FDCNEK	2-fluorodeschloro-n-ethyl-ketamine
2-oxo-PCE	n-ethyl-deschloroketamine
3-MeO-PCE	3-methoxyeticyclidine
3-MeO-PCP	3-methoxyphencyclidine
3-MPA	3-mercaptopropionic
3-OH-PCP	3-hydroxyphencyclidine
4-MeO-PCP	4-methoxyphencyclidine
8BA-2F	((((Hexane-1,6-diylbis(2,7-bis(4-(hydroxymethyl)-phenyl)-9H-fluorine-9,9-diyl))bis(hexane-6,1-diyl))bis-(9H-carbazole-9,3,6-triyl))tetrakis(benzene-4,1-diyl))tetramethanol
ACHs	Arylcyclohexylamines
Cal	Calcein
CD	carbon dots
CEDIA	cloned enzyme donor immunoassay
CE	18-crown-6
CNS	central nervous system
DAD	diode array detector
DBP	dibutyl phthalate
DBS	dried blood spots
DEA	Drug Enforcement Administration
DESI	desorption electrospray ionization
DHNK	Dehydronorketamine
DLLME	dispersive liquid/liquid microextraction
DME	dual mode extraction
DNA	deoxyribonucleic acid
DXE	deschloroketamine
EDC	1-ethyl-3-(3-dimethylaminoprophyl) carbodiimide
EGDMA	ethylene glycol dimethacrylate
EI/CI	ion trap electron and chemical ionization
EIA	enzyme immunoassay
EIS	electrochemical impedance spectroscopy
ELISA	enzyme-linked immunosorbent assays
EMCDDA	European Monitoring Centre for Drugs and Drug Addiction
ESI	electrospray ionization
EU	European Union
FID	flame ionization detector
GC	gas chromatography
HPLC	high pressure liquid chromatography
HRAM	high resolution accurate mass
HRMS	high resolution mass spectrometry
HS	headspace
IMS	ion mobility spectrometry
IT	ion trap
KET	ketamine
KTpClPB	potassium tetrakis(p-chlorophenyl)borate
LC	liquid chromatography
LLE	liquid/liquid extraction
LOD	limit of detection
Lu	luminol
MAA	methacrylic acid
MEPS	microextraction by packed sorbent
MIP	molecularly imprinted polymer
MOFs@G	metal-organic framework/graphene nanocomposite
MS/MS	tandem mass spectrometry
MXE	methoxetamine
MXPr	methoxpropamine
Na-TPB	lipophilic anionic additive
NBS	n-bromosuccinimide
NENK	n-ethyl-norketamine
NHS	n-hydroxysulfsuccinimide
NKET	norketamine
NMDAr	N-methyl-D-aspartate receptor
NMR	nuclear magnetic resonance
NP	nanoparticles
N.S.	non-specified
N.A.	non-applicable
PANI-rGO	polyaniline-reduced graphene oxide
PBI-CB	o-carborane derivative of perylene bisimide
PCE	eticyclidine
PCP	phencyclidine
PCF	photonic crystal fibres
PDMS	polydimethylsiloxane
PGE	pencil graphite electrode
PLE	pressurized liquid extraction
PM-CE	a-keggin polyoxomolybdophosphate:18-crown-6
PM-KT	phosphomolybdic–ketamine
PPT	protein precipitation
PTY	polytyramine
Q8	cucurbit[8]uril
QTOF	quantitative time-of-flight
sd-GC-FTIR	solid deposition gas chromatography Fourier transform infrared spectrometry
SMART	Global Synthetics Monitoring: Analyses, Reporting and Trends
SPE	solid-phase extraction
SPR	surface plasmonic resonance
TA-Ag NCs	thiosalicylic acid-stabilized silver nanoclusters
THz	terahertz
TMSPMA	3-(trimethoxysilyl)propyl methacrylate
TOF	time-of-flight
UHPLC	Ultra-high pressure liquid chromatography
UNODC	United Nations Office on Drugs and Crime
UV	ultra-violet
Zeo–GO	zeolites nanoflakes and graphene-oxide nanocrystal