title: A multi-wall carbon nanotubes-dicetyl phosphate electrode for the determination of hypoxanthine in fish.
abstract: An enzymeless sensor based on a multi-walled carbon nanotubes-dicetyl phosphate (MWCNT-DCP) film modified vitreous carbon electrode was developed for the determination of hypoxanthine. The MWCNT-DCP film modified electrode showed a remarkable enhancement effect on the oxidation peak current of hypoxanthine. Under the optimized conditions, the oxidation peak current is proportional to the concentration of hypoxanthine over the range from 5.0 x 10(-7) to 2.0 x 10(-4) mol L(-1) with a detection limit (S/N = 3) of 2.0 x 10(-7) mol L(-1). The MWCNT-DCP film modified electrode has been successfully used to detect hypoxanthine in fish samples.
mesh_terms: D000818:Animals; D004563:Electrochemistry; D004566:Electrodes; D005399:Fishes; D005504:Food Analysis / Q000379:methods*; D019271:Hypoxanthine / Q000032:analysis*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010755:Organophosphates / Q000737:chemistry*
chemical_list: D037742:Nanotubes, Carbon; D010755:Organophosphates; D019271:Hypoxanthine; C002290:dicetylphosphate