Redox reaction of [Fe(CN)6 ]3/4- on thin film Au in the
presence of specifically adsorbing Cl-
38 nm thick Au film on SF-10 glass (with 1.7
nm binder layer of Cr).  Linear voltage scan
0.0 ® -0.5 ®0.5 ®0.0 V at 5 mV/s in 0.05 M
NaCl+ X mM K3Fe(CN)6