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Immobilized imidazolium-based ionic liquids in C18 for solid-phase extraction.
Analyst ( IF 3.6 ) Pub Date : 2020/02/07 , DOI: 10.1039/c9an02479d
Marieta L C Passos 1 , Emília Sousa , M Lúcia M F S Saraiva
Affiliation  

In this work, two solid-phases based on imidazolium-based ionic liquids were obtained and characterized for solid-phase extraction of fluoroquinolones. The process of immobilization was performed replacing a toxic reagent by UV-irradiation to get a harmless process. The obtained solid-phases were characterized by nuclear magnetic resonance spectroscopy and elemental analysis. Each solid-phase was packed in a cartridge and was used in solid-phase extraction processes for norfloxacin and ciprofloxacin, after the optimization of some parameters such as the elution solvent, the eluent volume and, the sample volume to be used during the loading step. The developed solid-phases with immobilized ionic liquids were successfully implemented for the studied compounds and indicate high probabilities to be useful in solid-phase extractions of other fluoroquinolones.

中文翻译:

在C18中固定化的咪唑类离子液体用于固相萃取。

在这项工作中,获得了基于咪唑基离子液体的两个固相,并进行了固相萃取氟喹诺酮的表征。通过紫外线照射代替有毒试剂进行固定化处理,得到无害的处理。通过核磁共振波谱法和元素分析对获得的固相进行表征。在优化一些参数(例如洗脱溶剂,洗脱液体积和上样步骤中使用的样品体积)后,将每种固相装在药筒中并用于诺氟沙星和环丙沙星的固相萃取工艺。
更新日期:2020-03-31
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