结合X射线衍射、红外光谱、核磁共振、热重分析等多种分析手段，分析了焦炭的化学组成及焦炭在催化剂上的沉积位置。
The chemical composition and the location of coke were investigated by using various analytical techniques such as XRD, IR, NMR and TGA, etc.
本文通过扫描电镜、等离子体光谱分析、热重分析、13c核磁共振波谱分析、傅立叶红外变换光谱分析，对它进行物质结构的鉴定和元素含量分析。
The structure identification and the element content analysis were investigated with scanning electron microscope, plasma spectral analysis, TG analysis, 13c NMR and FTIR spectral analysis.
本文通过扫描电镜、等离子体光谱分析、热重分析、13c核磁共振波谱分析、傅立叶红外变换光谱分析，对它进行物质结构的鉴定和元素含量分析。
The structure identification and the element content analysis were investigated with scanning electron microscope, plasma spectral analysis, TG analysis, 13c NMR and FTIR spectral analysis.
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