Supplier Page from Thermo Fisher Scientific for Iron, plasma standard solution, Specpure:r, Fe 1000µg/mL
Copper, plasma standard solution, Specpure:r, Cu 10µg/mL from Thermo Fisher Scientific
Holmium, plasma standard solution, Specpure:r, Ho 10,000µg/mL from Thermo Fisher Scientific
Silicon standard solution, for AAS, 1 µg/mL Si in 2% NaOH from Thermo Fisher Scientific
Tungsten, plasma standard solution, Specpure:r, W 1000µg/mL from Thermo Fisher Scientific