Supplier Page from Thermo Fisher Scientific for Norfloxacin, 98%, analytical standard
Germanium, plasma standard solution, Specpure:r, Ge 1000µg/mL from Thermo Fisher Scientific
Sulfur in Heavy Mineral Oil standard solution, Specpure:r, 40,000µmg/g (4.00%) from Thermo Fisher Scientific
Tellurium, plasma standard solution, Specpure:r, Te 1000µg/mL from Thermo Fisher Scientific
Tungsten, plasma standard solution, Specpure:r, W 1000µg/mL from Thermo Fisher Scientific