The Determination of Hydroquinone on the Poly p-aminobenzene Salfonie Acid Modified Electrode

A polyp-aminobenzene salfonie acid modified electrode has been prepared,the electrochemical behavior of hydroquinone has been studied on the modified electrode.At the same time,The dectrocatslytical mechanism was also studied.The catalytic current of hydroquinone vs its concentration has a good linear relation in the range of 1.0×10-6～8.0×10-5 mol/L,with the correlation coefficient of 0.9894,Detection limit is 5.0×10-7 mol/L.The modified dectrode was applied to the determination of hydroquinone in photographic imaging agent with satisfactory results.