Supplier Page from Thermo Fisher Scientific for Erbium, AAS standard solution, Specpure:r, Er 1000µg/mL
Cobalt, plasma standard solution, Specpure:r, Co 10,000µg/mL from Thermo Fisher Scientific
Germanium, plasma standard solution, Specpure:r, Ge 1000µg/mL from Thermo Fisher Scientific
Sulfur in Heavy Mineral Oil standard solution, Specpure:r, 30,000µmg/g (3.00%) from Thermo Fisher Scientific
Sulfur in Light Mineral Oil standard solution, Specpure:r, 1,000µmg/g (0.10%) from Thermo Fisher Scientific