Supplier Page from Thermo Fisher Scientific for Ringer's Solution, standard, unbuffered
Lithium standard solution, for AAS, 1 µg/mL Li in 2% HCl from Thermo Fisher Scientific
Ringer's Solution, standard, unbuffered from Thermo Fisher Scientific
Sulfur in Heavy Mineral Oil standard solution, Specpure:r, 15µmg/g (0.0015%) from Thermo Fisher Scientific
Sulfur in Heavy Mineral Oil standard solution, Specpure:r, 40,000µmg/g (4.00%) from Thermo Fisher Scientific