▎ 摘　　要

NOVELTY - Preparing nano silver/pyridine functionalized graphene modified electrode comprises synthesizing pyridine functionalized graphene, silver nanoparticles/pyridine functionalized graphene and silver nanoparticles/pyridine functionalized graphene/glassy carbon electrode preparation, adding silver nitrate and ethylenediaminetetraacetic acid into the pyridine-graphene oxide dispersion to form mixed solution, heating in a water bath, then slowly adding sodium borohydride, heating, centrifuging and drying. USE - The electrode is useful in detecting hydroquinone and pyrocatechol (claimed). ADVANTAGE - The electrode: has high loading of silver i.e. 39.62 wt.%, uniform size of silver nanoparticles, uniformly distributed on the surface of graphene; has no agglomeration; excellent detection sensitivity for HQ and CC, and has the detection limits of 0.062 mu M and 0.097 mu M respectively; and excellent selectivity and strong anti-interference ability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for electrode useful in detecting hydroquinone and pyrocatechol.