高等学校化学学报

高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (12): 2004.

• 论文 • 上一篇    下一篇

Vitamin K脉冲辐解与激光光解的研究(Ⅰ)──VK3水溶液脉冲辐解还原反应时间分辨的研究

陈家富1, 姚思德2, 储高升1, 张志成1, 张曼维1, 王文锋2, 林念芸2   

  1. 1. 中国科学技术大学应用化学系, 合肥 230026;
    2. 中国科学院上海原子核研究所辐射化学开放实验室, 上海 200433
  • 收稿日期:1996-10-06 出版日期:1997-12-24 发布日期:1997-12-24
  • 通讯作者: 陈家富, 男, 33岁, 博士, 讲师.
  • 作者简介:陈家富, 男, 33岁, 博士, 讲师.
  • 基金资助:

    中国科学院辐射化学开放实验室基金

Series of Studies of Vitamin K by Pulse Radiolysis and Laser Photolysis(Ⅰ)─A Pulse Radiolysis Studies of the Reduction Reaction of VK3 in Aqueous Solution

CHEN Jia-Fu1, YAO Shi-De2, CHU Gao-Sheng1, ZHANG Zhi-Cheng1, ZHANG Man-Wei1, WANG Wen-Feng2, LIN Nian-Yun2   

  1. 1. Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026;
    2. Laboratory of Radiation Chemistry, Shanghai Institute of Nuclear Research Academia Sinica, Shanghai 200243
  • Received:1996-10-06 Online:1997-12-24 Published:1997-12-24

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摘要： 研究了VK3水溶液经脉冲辐解后VK3阴离子自由基的形成机理及其次级反应,观察到VK3阴离子自由基的最大吸收波长位于约340nm处,这与VK3阴离子自由基最大吸收波长在390nm附近的观点有所不同,并初步分析了这种差异的原因．初步探讨了VK3对Thymine-和Adenine-的修复作用,显示VK3本身是很好的辐射保护剂．

关键词: VitaminK, 电子转移, 碱基, 辐射保护, 脉冲辐解

Abstract: The formation mechanism and subsequent reaction of anion radical of VK3, hasbeen investigated using pulse radiolysis technique.It has been observed that the anion radicalof VK3, with the maximum absorption peak round 340 nm is different from that with the max-imum absorption at 390 nm observed by others, the reasons of this difference has been ini-tially analysed.This paper also explores the protection action of VK3, to some bases of DNA,showing that VK3, itself is a good radiation protector.

Key words: Vitamin K, Electron transfer, Base, Radiation protection, Pulse radiolysis

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