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毛细管柱GC/MS/ESR联用研究自由基PBN加合物
Studies of PBN Spin Adducts by the Combined Technique of Quartz Capillary Column GC/MS and ESR
【摘要】 采用硅烷化方法,并用石英毛细管柱气相色谱与双聚焦质谱仪组成的GC/MS联用系统,首次成功地分析鉴别了六种自由基的PBN加合物,总结了这些自旋加合物的断裂规律.实验结果表明,硅烷化结合GC/MS和自旋捕捉ESR联用技术是确定活泼自由基的一种有效方法.
【Abstract】 A new technique, high resolution quartz capillary column GC/MS/ESR combined with the silanization approach of free radical adduct was successfully used in the analysis and determination of 6 types of PBN spin adducts. Satisfactory mass spectra of spin adducts were obtained. The results show that it is an efficient method for separating and identifying mixed free radicals.
【关键词】 自旋捕捉;
色谱/质谱;
硅烷化;
自由基;
电子自旋共振;
【Key words】 Spin trapping; GC/MS; Silanization; Free radical; ESR;
【Key words】 Spin trapping; GC/MS; Silanization; Free radical; ESR;
【基金】 国家自然科学基金
- 【文献出处】 物理化学学报 ,Acta Physico-chimica Sinica , 编辑部邮箱 ,1994年09期
- 【分类号】O657.6
- 【被引频次】1
- 【下载频次】81