▎ 摘　　要

The authors describe a method for amperometric determination of thiodiglycol (TDG), the main hydrolysis product of sulfur mustard. The electrode consists of a mixture of graphene nanosheets, silver nanoparticles and the ionic liquid octylpyridinium hexafluorophosphate. Electrochemical oxidation of TDG was performed by cyclic voltammetry at pH 4 and revealed a pair of well-defined redox peaks at potentials of 0.43 and 0.19 V (vs. Ag/AgCl). Amperometric detection was accomplished over a dynamic range that is linear in the 10-3700 mu M concentration range. The detection limit (at an S/N of 3) is 6 mu M. The electrode was applied to the determination of TDG in (spiked) waste water and gave recoveries that ranged from 98.2 to 103.3 %.