An Amperometric Flow Injection Analysis of Dissolved Hydrogen Molecule Using Tightly Immobilized Electrodeposited Platinum Particles on Nitrogen-containing Functional Groups Introduced Glassy Carbon Electrodes.

An amperometric sensor based on flow injection analysis (FIA) of dissolved hydrogen molecules was first developed using electrodeposited platinum particles on glassy carbon electrodes modified with nitrogen-containing functional groups (Pt-NGC) as the working electrode. A glassy carbon (GC) electrode was covalently modified by electrochemical oxidation/reduction procedures. The redox waves between hydrogen ions and hydrogen molecules at highly positive potential range in the hydrodynamic voltammogram were obtained by using a Pt-NGC electrode.