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首页> 外文会议>International Mass Spectrometry Conference >DIRECT MASS SPECTROMETRY ANALYSIS USING IN-CAPILLARY IONIC LIQUIDS-BASED DISPERSIVE LIQUID-LIQUID MICROEXTRACTION AND SONIC-SPRAY IONIZATION
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DIRECT MASS SPECTROMETRY ANALYSIS USING IN-CAPILLARY IONIC LIQUIDS-BASED DISPERSIVE LIQUID-LIQUID MICROEXTRACTION AND SONIC-SPRAY IONIZATION

机译：使用毛细管内离子液体的分散液 - 液微萃取和声波喷射电离的直接质谱分析

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Public concern on the environmental and human impact of chemical approaches has encouraged analytical chemists to introduce safer and cleaner alternatives. Ionic liquids (ILs) are showing increasingly promising perspectives as green solvents in a diversity of fields. The unique physicochemical properties make ILs favorable alternative media to replace organic solvents for extraction, separation and detection techniques. In this study, a novel ILs-based dispersive liquid-liquid microextraction (DLLME) method coupled with sonic-spray ionization (SSI) has been developed for direct mass spectrometry analysis of environmental water samples. An in-situ formed dicationic IL was introduced to not only act as an effective extraction medium, but also create a positively charged complex with target analytes, allowing a significant increase in sensitivity.
机译：公众关注化学方法的环境和人为影响，鼓励分析化学家引入更安全和更清洁的替代品。离子液体（ILS）显示出在多样性的田间中作为绿色溶剂的前景越来越有前景。独特的物理化学特性使ILS有利的替代介质更换有机溶剂来提取，分离和检测技术。在该研究中，已经开发了一种与声波喷射电离（SSI）偶联的新型ILS的分散液 - 液体微萃取（DLLME）方法用于环境水样的直接质谱分析。引入原位形成的DICTIXIC IL，不仅用作有效的提取介质，还引入有效的提取介质，而且还与靶分析物产生带正电荷的复合物，允许显着增加灵敏度。

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