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liutg137

木虫 (正式写手)

[求助] 苯胺蓝(水溶)吸附后吸收峰蓝移

合成了一种材料,带氨基,加入苯胺蓝后颜色变得很浅,肉眼几乎无色,但是直接紫外扫描紫外区吸收峰太强,将其与苯胺蓝原液一起稀释50倍后扫描光谱图如下:
发现紫外区吸收峰增强,可见区吸收峰减弱且蓝移,染料是被吸附了?还是发生化学反应了?如果是吸附不应该是整个光谱区吸光度整体下降么?请熟悉的人帮忙解释,谢谢!

苯胺蓝(水溶)吸附后吸收峰蓝移
苯胺蓝.jpg
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2楼2017-06-21 14:10:12
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