Supplier Page from Thermo Fisher Scientific for Silver, plasma standard solution, Specpure:r, Ag 1000µg/mL
Copper standard solution, for AAS, 1 µg/mL Cu in 2 to 5% HNO3 from Thermo Fisher Scientific
Gallium, plasma standard solution, Specpure:r, Ga 10,000µg/mL from Thermo Fisher Scientific
Lithium, AAS standard solution, Specpure:r, Li 1000µg/mL from Thermo Fisher Scientific
Multi-Element Plasma Standard Solution 2, Specpure® from Thermo Fisher Scientific