Supplier Page from Thermo Fisher Scientific for Ringer's Solution, standard, unbuffered
Cerium, plasma standard solution, Specpure:r, Ce 1000µg/mL from Thermo Fisher Scientific
Germanium, plasma standard solution, Specpure:r, Ge 1000µg/mL from Thermo Fisher Scientific
Potassium standard solution, for AAS, 1 µg/mL K in 2-5% HNO3 from Thermo Fisher Scientific
Praseodymium, plasma standard solution, Specpure:r, Pr 1000µg/mL from Thermo Fisher Scientific