| abstract |
[PROBLEMS] To use a nanocarbon material such as a carbon nanotube with high catalytic activity, which is excellent in selectivity to a measurement interfering substance and suitable for an electrode forming material of a biosensor having excellent productivity, economy, and convenience. Ink used in the present invention is provided. SOLUTION: (A) Carbon nanotube, carbon nanohorn, cocoon, carbon nanocoil, derivatives or mixtures thereof, (B) at least one of carbon black and graphite, (C) binder resin, (D) solvent and preferably Is an ink with iron powder added. [Selection figure] None |