nuclear magnetic resonance spectroscopy

基本解释

The structure was determined by infrared spectroscopy(FT-IR), nuclear magnetic resonance spectroscopy(1H-NMR) and element analysis(EA).
采用红外光谱（FT-IR）、核磁共振波谱（1H-NMR）、元素分析（EA）确定了物质的结构。
RESULTS A compound was isolated and its structure was identified by nuclear magnetic resonance spectroscopy and mass spectrometry as 4-hydroxy-3-methoxy benzaldehyde.
根中分离得到一个化合物，经核磁、质谱、紫外和红外光谱法鉴定为4-羟基-3-甲氧基苯甲醛。
The finish oil content of PET staple fiber was determined by extraction weight method, extraction light refraction method, instant test method and nuclear magnetic resonance spectroscopy.
采用了萃取称重法、萃取折射率法、快速法、核磁共振法测定了对涤纶短纤维的含油率进行了比较。