Supplier Page from Thermo Fisher Scientific for Niobium, plasma standard solution, Specpure:r, Nb 10,000µg/mL
2(2-Ethoxyethoxy)ethanol, 98+% from Thermo Fisher Scientific
2-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Ethyl 2-mercaptoacetate, 99% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, tetrasodium salt hydrate, 98%, pure from Thermo Fisher Scientific