采用红外光谱仪、 核磁共振波谱仪对聚合物的合成特征基团进行了表征，并采用X射线衍射仪对不同型号蜡及降凝剂的结晶性能进行了分析测试。
The characteristic groups of polymeric pour point depressant(PPD)were analyzed by FT-IR and NMR techniques. The crystallization properties of various types of wax and PPD were measured by XRD.
本文采用色一质联用仪、傅立叶红外光谱仪、核磁共振仪对神经酸及其杂质进行定性，并作详细谱图解释。
Nervonic acid and its impurities were separated and identified by GC-MS, FTlR and NMR. The diagrams are exp1ained.
本文采用色一质联用仪、傅立叶红外光谱仪、核磁共振仪对神经酸及其杂质进行定性，并作详细谱图解释。
Nervonic acid and its impurities were separated and identified by GC-MS, FTlR and NMR. The diagrams are exp1ained.
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