A mixture of an aqueous dispersion of poly (ester sulfonic acid) or Eastman AQ38 (AQ) and a solution of cytochrome c (Cyt c) is cast on the surface of pyrolytic graphite (PG) electrodes, and Cyt c AQ films are formed after being dried.

• 将聚磺酸酯EastmanAQ38(AQ)与细胞色素c (Cytc)的混合水分散系涂布于热解石墨电极表面 ；晾干后可形成Cytc AQ薄膜 .