The infra - redspectra of quinones present a number of interesting features.
醌类的红外光谱具有一些有趣的性质。
2
The molecular weight distributions, infra-red, ultraviolet and nuclear magnetic resonance spectra for the polysilane polymers have been described.
本文还讨论了这些聚硅烷的分子量分布以及红外、紫外、核磁共振等光谱性质。
3
The infra-redspectra showed that the main chromophoric groups (conjugated carbonyl groups) were destroyed by bleaching agents, which was the main reason of brightness incremsent.