摘要
首先通过红外光谱法(IR)、核磁共振波谱法(NMR)对老化油中氧化产物的官能团进行了分析,再利用气相色谱和质谱联用(GC-MS)、超临界流体色谱(SFC)电喷雾质谱等4种检测方法对新#25变压器油和运行14年的#25变压器油进行检测,对比后发现:红外光谱法核磁共振法虽不能有效分离各种物质,但是可以确定油样中化学成分官能,由于油样中氧化成分含量较低,气质联用不能给出较多的信息,利用超临界流体色谱偶合电喷雾电离的方法能有效的分离变压器油中的氧化成分,特别是脂肪酸的部分,从而为变压器油老化成分的分析提供了有效可行的方法。
The samples of new #25 transformer oil and running #25 transformer oil（ 14 years） were analyzed by four measurement methods： Nuclear Magnetic Resonance Spectroscopy（ NMR）,Fourier Transform Infrared spectroscopy（ FTIR）,Gas Chromatography and Mass Spectrometry（ GC-MS） and Supercritical Fluid Chromatography（ SFC）. After comparing the results,it was found that FTIR could not distinguish effectively various components,while could be used to determine the functional groups.GC-MS results couldn＇t afford enough information on aging materials,due to the low concentration in oil.SFC using Electrospray Ionization method was efficacious in illuminating oil components,especially in fatty compounds.In this work,then SFC method was used to analyze the aging compounds of transformer oil.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2016年第4期558-563,共6页
Chemical Research and Application
基金
国网公司科技项目(1316)资助
