The specimen was heated and burnt in oxygen fluid in high-frequency induction furnace. Carbon in specimen was transformed into carbon dioxide, and then determined by infraredabsorptionmethod.
试样于高频感应炉的氧气流中加热燃烧。使样品中的碳全部转化为二氧化碳，红外检测。
2
The results show that the infraredabsorption spectra contains much information of carbon nanotubes, and is an effective method of studying the lattice dynamics of carbon nanotubes.
结果表明，红外吸收光谱包含有碳纳米管的许多信息，是研究其晶格动力学的有效方法。
3
Based on the infrared spectrum absorption characterization of methane gas, the long optical distance differential absorption method for methane detection is studied.