The mechanism of de-inking of photocopy waste paper with solvent treatment was investigated by Fourier transforming infraredspectrum (FT-IR), image-scanning and microscope analysis.
采用傅立叶变换红外光谱、图像扫描和显微分析等手段，研究了静电复印废纸溶剂法脱墨的机理。
2
The thermo-oxidative stability of nylon 12 is investigated by infraredspectrum(IR), and by measuring whiteness and inherent viscosity of oxidized nylon 12.
采用热失重分析、白度测定、特性粘度、红外光谱（IR）等方法对尼龙12的热氧稳定性进行了研究。
3
Then we detected the physiochemical characteristics of the MS sample through scanning electron microscopy ( SEM ) , infraredspectrum ( IR )and differential thermal analysis ( DTA ) .