新试剂6-(2,4-二羟基苯基偶氮)-2,3-二氢-1,4酞嗪二酮的电致化学发光研究

Properties, of Electrochemiluminescence of a New Reagent 6-(2, 4-Dihydroxyphenylazo)-2, 3-dihydro-1, 4-phthalazine-1, 4-dione

本文研究了6-(2,4-二羟基苯基偶氮)-2,3-二氢-1,4酞嗪二酮(新试剂DHDHD)的电致化学发光的条件及产生电化学发光的机理。

The electrochemiluminescence of a new reagent,6-(2,4-dihydroxyphenylazo)-2,3-dihydro-1,4-phthalazine-1,4-dione(DHDHD),in a buffer medium of Na_2CO_3-NaHCO_3-KCI (pH 9.8)has been studied.A linear relationship between the concentration and intensity of light emitted is obtained in the range of 1×10^(-9)～6×10^(-7)mol/L for DHDHD.The working electrode is maintained at a positive trigonometrical wave pulse(3.2V vs.SCE).The detection limit is 1.7×10^(-10)mol/L.The mechanism of the eletrochemiluminescence of DHDHD is also discussed.