高效液相色谱法测定高分子受阻胺光稳定剂
以对硝基苯甲酰氯为酰基化试剂,通过与含胺基的高分子受阻胺光稳定剂944在四氢呋喃中发生酰胺化反应形成沉淀,改变反应配比确定对硝基苯甲酰氯与高分子受阻胺光稳定剂944反应比例为5:1.利用傅立叶红外光谱分析反应沉淀来实现高分子受阻胺光稳定剂944的定性分析,利用高效液相色谱分析反应上层清液,实现定量分析,紫外可见检测器检测波长为360 nm,反应测试结果回收率可达到90%以上.
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