The extracts of flavonoids were analyzed and identified by the methods of ultraviolet spectrum, polyamide film chromatography and infrared spectrum.

利用紫外可见吸收光谱、聚酰胺薄层层析、红外光谱等分析手段对黄酮提取物进行分析和表征。

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Thin film oven aging behaviors of SB S modified asphalts were studied by infrared spectrum, gel permeation chromatography, dyn amic mechanical property analysis.

用红外光谱、凝胶渗透色谱、动态黏弹仪研究了苯乙烯-丁二烯嵌段共聚物（SBS）改性沥青的薄膜烘箱老化行为。

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