HABs	Harmful algal blooms
PST	Paralytic shellfish toxin
PSP	Paralytic shellfish poisoning
VGSCs	Voltage-gated sodium channels
CRMs	Certified reference materials
MBA	Mouse bioassay
HPLC-FLD	High-performance liquid chromatography with fluorescence detection
LC-MS/MS	Liquid chromatography-tandem mass spectrometry
LOD	Limit of detection
STX	Saxitoxin
eq	Equivalent
N2a	Neuro-2a
TEFs	Toxicity equivalence factors
OV	Ouabain octahydrate/Veratridine
EC50	Half-maximal effective concentration
FBS	Fetal bovine serum
DPBS	Dulbecco’s phosphate-buffered saline
O	Ouabain octahydrate
V	Veratridine
MTT	thiazolyl blue tetrazolium bromide
ESI	Electrospray ionization
MRM	Multiple reaction monitoring
QC	Quality control
RCV	Reference cell viability
COV−	Viability controls under OV−
COV+	Viability controls under OV+
QCOV−	Quality control samples under OV−
QCOV+	Quality control samples under OV+