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
Praseodymium, plasma standard solution, Specpure:r, Pr 1000µg/mL from Thermo Fisher Scientific
Rhenium, AAS standard solution, Specpure:r, Re 1000µg/mL from Thermo Fisher Scientific
Sulfur in Heavy Mineral Oil standard solution, Specpure:r, 1500µmg/g (0.15%) from Thermo Fisher Scientific