Cg. Nana et al., The enhanced electrogenerated chemiluminescence of Ru(bpy)(3)(2+) by glutathione on a glassy carbon electrode modified with some porphine compounds, ANALYST, 125(12), 2000, pp. 2294-2298
It has been found that the electrochemical activity of glutathione was incr
eased greatly at the glassy carbon electrodes modified with 5,10,15,20-tetr
aphenylporphine ruthenium(ii) carbenyl (RuTPP), meso-tetraphenylporphine co
pper(ii) complex (CuTTP) and hemin. It has been also found that glutathione
would enhance the electrogenerated chemiluminescence (ECL) of Ru(bpy)(3)(2
+) at a hemin glassy carbon electrode; the enhanced ECL intensity was linea
r with the concentration of glutathione in the range of 1 x 10(-7) similar
to 1 x 10(-4) mol l(-1), based on which method for determination of glutath
ione has been developed. The detection limit of glutathione was 2 x 10(-8)
mol l(-1), and the relative standard deviation for 1 x 10(-6) mol l(-1) glu
tathione was 2.7%. The mechanism for this ECL system has been proposed.