A Photoinduced Electron-Transfer Reagent for Peroxyacetic Acid, 4-Ethylthioacetylamino-7- phenylsulfonyl-2,1,3-benzoxadiazole, Based on the Method for Predicting the Fluorescence Quantum Yields
作者:Maki Onoda、Seiichi Uchiyama、Tomofumi Santa、Kazuhiro Imai
DOI:10.1021/ac0201225
日期:2002.8.1
established a method for predicting the fluorescence quantum yields (phi) of the benzofurazan compounds bearing an aliphatic substituent group having an n-electron. The PET process occurred sufficiently to reduce the phi values in the benzofurazan compounds bearing an aliphatic moiety, which had a high quenching ability. The quenching ability was estimated by the molecular orbital calculation and Stern-Volmer
为了开发新的光致电子转移(PET)试剂,我们建立了一种预测带有带有n电子的脂族取代基的苯并呋喃山化合物的荧光量子产率(phi)的方法。PET过程足以降低具有高淬灭能力的带有脂肪族部分的苯并呋喃山化合物的phi值。通过分子轨道计算和斯特恩-沃尔默作图估计淬灭能力。可通过改变取代基的淬灭能力来控制苯并呋喃山化合物的phi值。我们使用已建立的预测phi值的方法成功设计了用于过氧乙酸(PAA),4-乙基硫代乙酰氨基-7-苯基磺酰基-2,1,3-苯并恶二唑(EPB)的PET试剂。通过反相HPLC分离EPB及其氧化衍生物,并在362nm激发下在479nm下进行荧光检测。PAA的检测限为105 fmol(S / N = 3),与过氧化氢的交叉反应性非常低,表明EPB是对PAA的高度敏感和选择性的试剂。