在列上进行修改,以创建温度响应的静止相
Adriaan Ampe1, Elena Bandini1, Ken Broeckhoven2
1Separation Science Group, Department of Organic and Macromolecular Chemistry, Krijgslaan 281, Ghent, Belgium.
Analytica chimica acta
|November 17, 2023
概括
一种新的流通方法允许对温度响应液态染色学 (TRLC) 列进行列内修改. 这种绿色染色学技术绕过了专用包装,保持了效率,并提高了优化HPLC分离的保留率.
科学领域:
- 染色体学 染色体学 是一种染色学.
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 温度敏感液体染色学 (TRLC) 为优化高性能液体染色学 (HPLC) 的保留和选择性提供了一个替代方案.
- 在响应刺激的静止相上,TRLC利用温度梯度,消除了对溶剂梯度的需求,并使水性移动相成为可能.
- 这使得TRLC成为传统逆相分离的潜在绿色替代品,但目前的方法需要专门的柱子包装.
研究的目的:
- 开发一种流通式修改程序,用于对氨基二氧化柱的柱上修改,以方便创建温度响应阶段.
- 为了证明这种新的方法可以绕过专门的包装过程,而不会影响柱子的效率.
- 通过这种柱上修改技术制造的柱子的保留行为和静止相特性.
主要方法:
- 开发了一种流通修改程序,并应用于aminopropyl柱,用于在柱上创建温度响应的静止相.
- 使用这种方法制造了三个柱子,并将它们的效率与现有的TRLC柱子进行了比较.
- 进行了保留实验,以研究碳负载和静止相梯度的影响,包括在逆流条件下运行.
主要成果:
- 通过流量生产的TRLC柱实现了与传统包装柱相同的效率.
- 这些柱子在高温下表现出更高的保留力,尽管碳负载减少.
- 调查显示了静止相梯度,保留变化取决于聚合物修饰的程度;反向流量增强了明显的板号.
结论:
- 开发的柱上修改程序成功地在现有包装的柱上创建了温度响应阶段,而不会损失效率或保留.
- 这种方法通过消除对专门的包装优化需求,显著提高了TRLC技术的可访问性.
- 这些发现促进了下一代温度响应相的开发,并为研究不均静止相提供了新的实验设置.
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