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[求助] 55%乙醇提取树脂纯化后紫外扫描求助

某植物中55%乙醇提取(想提取多酚类物质),过滤,浓缩,过树脂,先用蒸馏水洗脱3个除杂至无组分流出,然后用60%乙醇洗脱收集主组分后,浓缩,冻干,在200-800nm范围内(0.1mg/mL)紫外扫描所得图如下,最大吸收在206nm左右,请问该物质是什么,进一步如何处理(想确定具体是哪类物质)。

55%乙醇提取树脂纯化后紫外扫描求助@lifeliuyan
附上粗略的红外图谱
55%乙醇提取树脂纯化后紫外扫描求助-1
3DVT5RL@AJF_Z(~F@WLT@@P.png
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