Sigma-Aldrich
Platinum Wire Auxiliary Electrode
Platinum-iridium alloy, Pt70Ir30
Platinum-iridium alloy, Pt75Ir25
Platinum-rhodium alloy, Pt70Rh30
Platinum-rhodium alloy, Pt90Rh10
Platinum-tungsten alloy, Pt92W8
Platinum/Iridium