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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.
The formation mechanism and secondary reaction of VK3 anion radical after VK3 aqueous solution was studied. The maximum absorption wavelength of VK3 anion radical was found to be at about 340 nm, which was in agreement with the maximum absorption wavelength of VK3 anion near 390 nm Different, and preliminary analysis of the reasons for this difference. The repair effect of VK3 on Thymine- and Adenine- was initially discussed, showing that VK3 itself is a good radiation protectant.