多元醇酯冷冻机油基础油组成的快速定性分析
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摘要
采用红外(IR)、核磁共振(NMR)、液相色谱-质谱(LC-HRMS)联用等现代仪器分析技术对二种(1号和2号)多元醇酯冷冻机油基础油的化学组成及结构进行剖析。综合几种分析结果表明1号样品是新戊二醇二异辛酸酯和季戊四醇四异辛酸酯的混合物,2号样品是季戊四醇异辛酸酯和季戊四醇异壬酸酯的混合物。
The compositions of two polyol ester refrigeration oils were determined by Infraed spectrum(IR),Nuclear magnetic resonance(NMR)and Liquid chromatogram-high resolution mass spectrum(LCHRMS).The results show that sample 1 is a mixture of neopentyl glycol diisooctanoate and pentaerythritol tetraisooctanoate with a proportion of 6∶1 and sample 2 is a mixture of pentaerythritol tetraisooctanoate and pentaerythritol tetraisononanoate.
The compositions of two polyol ester refrigeration oils were determined by Infraed spectrum(IR),Nuclear magnetic resonance(NMR)and Liquid chromatogram-high resolution mass spectrum(LCHRMS).The results show that sample 1 is a mixture of neopentyl glycol diisooctanoate and pentaerythritol tetraisooctanoate with a proportion of 6∶1 and sample 2 is a mixture of pentaerythritol tetraisooctanoate and pentaerythritol tetraisononanoate.
引文
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[5]Cheng W,Li J,Liu C X.NMR and LC-MS Analysis of Structure and Composition of Dipentaerythritol Ester Synthetic Lubricants[J].Lubes Fuels,2012,22(1):31-34.(程伟,李进,刘翠香。双季戊四醇酯类合成润滑油结构组成的NMR和LC-MS分析[J].润滑油与燃料,2012,22(1):31-34.)
[6]Yang Z X,Yu S K,Liu Q,et al.Analysis of a POERefrigeration Oil for Its Chemical Composition and Molecular Structures[J].Phys Testing Chem Anal Part B:Chem Anals,2014,50(9):1 076-1 080(in Chinese).(杨忠学,余树楷,刘强,等.多元醇酯冷冻机油的化学组成及其分子结构鉴定[J].理化检验-化学分册,2014,50(9):1 076-1 080.)
[2]Freas R B,Campana J E.Fast-atom Bombard-ment and Chemical Ionization/Fast-atom Bombardment Mass Spectrometry of Lubrivants[J].Anal Chem,1986,58:2 434-2 488.
[3]Freas R B,Campana J E.Chemical Ionization/Fastatom Bombardment Mass Spectrometry:Ion/Molecule Reactionst[J].J Am Chem Soc,1985,107:6 195-6 201.
[4]Yang H W,Wei X Y,Wu C,et al.Applications of Modern Analytical and Testing Techniques on Performances Analysis of Lubricants[J].Synth Lubricants,2010,37(4):34-37(in Chinese).(杨宏伟,魏贤勇,吴超,等.现代分析测试技术在润滑油性能分析中的应用[J].合成润滑材料,2010,37(4):34-37.)
[5]Cheng W,Li J,Liu C X.NMR and LC-MS Analysis of Structure and Composition of Dipentaerythritol Ester Synthetic Lubricants[J].Lubes Fuels,2012,22(1):31-34.(程伟,李进,刘翠香。双季戊四醇酯类合成润滑油结构组成的NMR和LC-MS分析[J].润滑油与燃料,2012,22(1):31-34.)
[6]Yang Z X,Yu S K,Liu Q,et al.Analysis of a POERefrigeration Oil for Its Chemical Composition and Molecular Structures[J].Phys Testing Chem Anal Part B:Chem Anals,2014,50(9):1 076-1 080(in Chinese).(杨忠学,余树楷,刘强,等.多元醇酯冷冻机油的化学组成及其分子结构鉴定[J].理化检验-化学分册,2014,50(9):1 076-1 080.)