DA	Dopamine
SE	Serotonin
NE	Norepinephrin
EP	Epinephrine
NTs	Neurotransmitters
GCE	Glassy carbon electrode
CPE	Carbon paste electrode
DPV	Differential pulse voltammetry
CV	Cyclic voltammetry
CAP	Chronoamperometry
GQDs	Graphene quantum dots
CQDs	Carbon quantum dots
MAO	Monoamine oxidase
CNTs	Carbon nanotubes
QDs	Quantum dots
N-CQDs	Nitrogen doped carbon quantum dots
N-GQDs	Nitrogen doped graphene quantum dots
MIPs	Molecularly imprinted polymers
AA	Amino acid
UA	Uric acid
IL	Ionic liquid
TEM	Transmission electron microscope
ITO	Indium tin oxide
CA	Citric acid
EIS	Electrochemical impedance spectroscopy
NPs	Nanoparticles
SPCE	screen printed carbon electrode
CS	Chitosan
SAM	self-enabled monolayers
eth	ethylene diamine
PANI	polyaniline
TMSPED	N-[3(trimethoxysilyl)propyl]ethylenediamine
AP	Amperometry
AuNCs	Gold nanocrystals
H-GQDs	Histidine functionalized GQDs
GMA	graphene micro aerogel
MWCNTs	Multiwalled carbon nanotubes
Cyse	Cystein
tyr	Tyrosine
trp	Tryptophan
asp	Aspartic acid
ala	Alanine
glu	Glutamic acid
his	Histidine
arg	Arginine
gly	Glycine
glc	Glucose
suc	Sucrose
fru	Fructose
SPE	screen printed electrode
LOD	Limit of detection
LDR	Linear dynamic range
DEA	diethanolamine
h-BN	Hezagonal boron nitride
OCP	obsessive compulsive disorder
PTSD	Post-traumatic stress disorder
SWSV	Square wave stripping voltammetry
ACh	Acetylcholine
HU	Human urine
HS	Human serum
LSV	Linear sweep voltammetry
PBS	Phosphate buffer saline
PCB	Phosphate-citrate buffer