The structures of the above compounds were assigned by nuclear magnetic resonance, mass spectrometry, and infrared spectroscopy etc.
以上所有化合物的结构通过核磁共振、质谱、红外光谱等确证。
2
The chemical structure of dye molecule was confirmed by 1h nuclear magnetic resonance spectroscopy, 1h-1h COSY and mass spectrometry.
染料分子的化学结构通过1 H核磁共振谱，二维1 H - 1h相关谱以及质谱分析得以确定。
3
In the first study, the authors measured fasting lipid levels and examined the number and size of cholesterol particles using nuclear magnetic resonance (NMR) spectroscopy.