BiFE	bismuth film electrode
SbFE	antimony film electrode
SnFE	tin film electrode
MFE	mercury film electrode
HDME	hanging mercury drop electrode
DPASV	differential pulse anodic stripping voltammetry
SWASV	square wave anodic stripping voltammetry
DCASV	direct current anodic stripping voltammetry
DCAdSV	direct current adsorptive stripping voltammetry.
DPAdSV	differential pulse adsorptive stripping voltammetry
SWAdSV	square wave adsorptive stripping voltammetry
CV	cyclic voltammetry
UPD	underpotential deposition
SPE	screen-printed electrode
PAD	paper-based analytical device
RGO	reduced graphene oxide
AuNPs	gold nanoparticles
FIA	flow injection analysis
SIA	sequential injection analysis
PSA	potentiometric stripping analysis
GO	graphene oxide
DMG	dimethylglyoxime
ePAD	electrochemical paper-based analytical devices
QDs	quantum dots