用质谱法、核磁共振波谱法、红外光谱法等，确定了未知氮杂环季铵盐型阳离子表面活性剂的结构。
Structute of nitrogen heterocyclic ring quaternary ammonium salt cationic surfactants was identi fied by mass spectrography, nuclear magnetic resonance spectra, infrared spectra and etc.
对近年来三氮烯类试剂在测定阴离子表面活性剂、阳离子表面活性剂光度分析中的应用进行了综述，引用文献25篇。
A review on the application of triazenes reagents to the determination of anionic surfactants and cationic surfactants in recent years was presented in this paper with 25 references cited.
对于相同的含氮官能团，碳链越长离子液体的催化活性越高。
The longer carbon chain the higher catalytic activity with the same nitrogen functional groups.
应用推荐