Supplier Page from Thermo Fisher Scientific for Zirconium, Oil based standard solution, Specpure:r, Zr 5000µmg/g
Iron standard solution, for AAS, 1 µg/mL Fe in 2 to 5% HNO3 from Thermo Fisher Scientific
Praseodymium, plasma standard solution, Specpure:r, Pr 1000µg/mL from Thermo Fisher Scientific
Rubidium, plasma standard solution, Specpure:r, Rb 1000µg/mL from Thermo Fisher Scientific
Zinc standard solution, for AAS, 1 µg/mL Zn in 2-5% HCl from Thermo Fisher Scientific