Supplier Page from Thermo Fisher Scientific for Arsenic, Oil based standard solution, Specpure:r, As 1000µmg/g
Copper standard solution, for AAS, 1 µg/mL Cu in 2 to 5% HNO3 from Thermo Fisher Scientific
Copper, plasma standard solution, Specpure:r, Cu 10,000µg/mL from Thermo Fisher Scientific
Lithium, plasma standard solution, Specpure:r, Li 1000µg/mL from Thermo Fisher Scientific
Samarium, plasma standard solution, Specpure:r, Sm 10,000µg/mL from Thermo Fisher Scientific