Supplier Page from Thermo Fisher Scientific for Rubidium, plasma standard solution, Specpure:r, Rb 1000µg/mL
Indium, plasma standard solution, Specpure:r, In 10,000µg/mL from Thermo Fisher Scientific
Potassium chloride, 0.010M, Conductivity Standard from Thermo Fisher Scientific
Rhenium, AAS standard solution, Specpure:r, Re 1000µg/mL from Thermo Fisher Scientific
Ringer's Solution, standard, unbuffered from Thermo Fisher Scientific