Supplier Page from Thermo Fisher Scientific for 1,3-Diphenylguanidine, primary standard, 99+%
Arsenic standard solution, for AAS, 1 µg/mL As in 2% KOH from Thermo Fisher Scientific
Germanium, plasma standard solution, Specpure:r, Ge 1000µg/mL from Thermo Fisher Scientific
Lead in Isooctane standard solution, Specpure:r, 740µmg/g(2.0g/gal) from Thermo Fisher Scientific
Magnesium, plasma standard solution, Specpure:r, Mg 10,000µg/mL from Thermo Fisher Scientific