Sodium arsenate dibasic heptahydrate (As)

Acrylamide-1-13C, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 287399-24-0

Niobium (Nb)

Carbofuran-d3 (N-methyl-d3), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1007459-98-4