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通过反相和混合模式液态色谱法确定未经化非离子和硫化胺基树脂中的自由胺含量

Blaž Zdovc¹, Ema Žagar¹

¹National Institute of Chemistry, Department of Polymer Chemistry and Technology, Hajdrihova 19, Ljubljana SI-1000, Slovenia.

Journal of chromatography. A

|August 16, 2025

概括

两种新的高性能液态色谱法准确量化了树脂中的自由胺. 这对于工业安全至关重要,因为胺是一种令人非常担忧的有毒物质.

科学领域:

分析化学分析化学
聚合物科学聚合物科学

背景情况:

胺-甲基甲树脂在工业上广泛使用.
胺是一种有毒化合物,是一个非常令人担忧的物质,需要对其在树脂中的含量进行控制.

研究的目的:

开发和介绍两种高性能液态色谱 (HPLC) 方法,用于确定未经固化胺基树脂中的自由胺含量.
为了确保工业安全和监管合规性,精确量化胺.

主要方法:

一种梯度逆相HPLC方法,用于非离子树脂使用C18列.
使用Primesep 100列为硫化 (负电荷) 树脂的异位混合模式HPLC方法.
这两种方法都采用紫外线检测.

主要成果:

在非离子和硫化胺基树脂中量化自由胺.
达到量化界限约为10−3%的重量.
在各种度的胺中表现出良好的重复性和线性.

结论:

开发的HPLC方法适用于准确确定各种未经固化胺基树脂中的自由胺含量.
这些方法提供了可靠的量化,对于管理工业树脂中有毒胺含量相关的风险至关重要.

关键词:

梯度逆相液态染色学梯度逆相液态染色学异态混合模式液体色谱学异态混合模式液体色谱学胺含量胺含量非离子胺-甲树脂的非离子胺-甲树脂.硫化胺-甲基甲树脂的硫化胺-甲基甲树脂.

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