The compound structure is verified by melting point, IR, NMR, element analysis, mass spectrum and optical rotation.
所得最终产品经熔点、核磁、红外、元素分析、质谱和旋光度分析，证明与预期结构相符。
The surface defect on medium and heavy plate Q235B was investigated by means of the optical microscopy, scanning electron microscopy and energy spectrum analysis in this paper.
对Q 235 B中厚板表面缺陷处的显微组织、非金属夹杂物等进行了金相组织和扫描电镜观察及能谱分析。
The CCD detector was used to take place of the photomultiplier which was widely used as the optical-electrical converter, and the fast analysis of the spectrum was realized by incorporating a grating.
用CCD检测仪取代了常用的光电转换器件——光电倍增管，通过与光栅结合实现了光谱的快速分析。
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