Supplier Page from Thermo Fisher Scientific for Copper, plasma standard solution, Specpure:r, Cu 10,000µg/mL
Arsenic standard solution, for AAS, 1 µg/mL As in 2% KOH from Thermo Fisher Scientific
Potassium hydrogen phthalate, ACS reagent, acidimetric standard from Thermo Fisher Scientific
Tungsten, plasma standard solution, Specpure:r, W 1000µg/mL from Thermo Fisher Scientific
Vanadium, plasma standard solution, Specpure:r, V 10,000µg/mL from Thermo Fisher Scientific