Supplier Page from Thermo Fisher Scientific for Ground & Waste Water Pollution Standard Solution 4, Specpure:r
Calcium standard solution, for AAS, 1 µg/mL Ca in 2 to 5% HNO3 from Thermo Fisher Scientific
Gadolinium, AAS standard solution, Specpure:r, Gd 1000µg/mL from Thermo Fisher Scientific
Silver, Oil based standard solution, Specpure:r, Ag 5000µmg/g from Thermo Fisher Scientific
Sulfur in Light Mineral Oil standard solution, Specpure:r, 1,000µmg/g (0.10%) from Thermo Fisher Scientific