Supplier Page from Thermo Fisher Scientific for Vanadium rod, 6.35mm (0.25in) dia, 99.5% (metals basis)
Ethyl carbazate, 97% from Thermo Fisher Scientific
Ethyl picolinate, 99% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, tetrasodium salt hydrate, 98%, pure from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific