Supplier Page from Thermo Fisher Scientific for Chromium, AAS standard solution, Specpure:r, Cr 1000µg/mL
Platinum standard solution, for AAS, 1 µg/mL Pt in 10-20% HCl from Thermo Fisher Scientific
Praseodymium, plasma standard solution, Specpure:r, Pr 1000µg/mL from Thermo Fisher Scientific
Sulfur in Crude Oil standard solution, Specpure:r, 5000µmg/g (0.50%) from Thermo Fisher Scientific
Titanium, plasma standard solution, Specpure:r, Ti 1000µg/mL from Thermo Fisher Scientific