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应用交叉极化、魔角旋转、边带金抑制和偶极相移技术,可以从固体~(13)C核磁共振谱中区分出非质子碳的信号。本方法为复杂的天然高分子聚合物,如煤、生油岩干酪根等的结构分析提供了有效的手段。
The signals of aprotic carbon can be distinguished from the solid ~ (13) C nuclear magnetic resonance spectrum by using the techniques of cross polarization, magic angle rotation, sideband suppression and dipole phase shift. The method provides an effective method for the structural analysis of complex natural polymers such as coal and kerogen.