Vp. Benov et Bp. Atanasov, SULFITE DETERMINATION WITH GOLD ELECTRODE PROMOTED BY BIS(4-PYRIDYL)DISULPHIDE CYTOCHROME-C, Analytical letters, 26(10), 1993, pp. 2061-2069
A biosensor was developed using Oxidized cytochrome C - sulfite reacti
on by following the electrochemical reaction between reduced cytochrom
e C and gold electrode. The change in the current at the fixed potenti
al equal to anodic peak potential of cytochrome C was proportional to
sulfite concentration in the range of 0.4x10(-4) to 4.0x10(-4) M.