Supplier Page from Thermo Fisher Scientific for Tellurium, plasma standard solution, Specpure:r, Te 10,000µg/mL
Ammonium, Ion chromatography standard solution, Specpure:r, NH{4}:+ 1000µg/mL from Thermo Fisher Scientific
Iron standard solution, for AAS, 1 µg/mL Fe in 2 to 5% HNO3 from Thermo Fisher Scientific
Sulfur in Diesel Fuel standard solution, Specpure:r, 10,000µmg/g (1.00%) from Thermo Fisher Scientific
Sulfur in Isooctane standard solution, Specpure:r, 1000µmg/g (0.100%) from Thermo Fisher Scientific