Supplier Page from Thermo Fisher Scientific for Erbium, AAS standard solution, Specpure:r, Er 1000µg/mL
Arsenic, plasma standard solution, Specpure:r, As 10,000µg/mL from Thermo Fisher Scientific
Sodium, Oil based standard solution, Specpure:r, Na 1000µmg/g from Thermo Fisher Scientific
Sulfur in Light Mineral Oil standard solution, Specpure:r, 10µmg/g (0.0010%) from Thermo Fisher Scientific
Yttrium, Oil based standard solution, Specpure:r, Y 1000µmg/g from Thermo Fisher Scientific