Supplier Page from Thermo Fisher Scientific for Vanadium, plasma standard solution, Specpure:r, V 10,000µg/mL
Copper standard solution, for AAS, 1 µg/mL Cu in 2 to 5% HNO3 from Thermo Fisher Scientific
JM-21 Multi-element Oil Based Standard, Specpure:r, 100µmg/g from Thermo Fisher Scientific
Potassium standard solution, for AAS, 1 µg/mL K in 2-5% HNO3 from Thermo Fisher Scientific
Tin, plasma standard solution, Specpure:r, Sn 10,000µg/mL from Thermo Fisher Scientific