Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) combined with different ionization techniques provides a powerful means to characterize dissolved organic matter (DOM) at the molecular level. Solid-phase extraction (SPE) is currently the most widely utilized method for extracting the DOM, but one-step elution using methanol does not provide a comprehensive picture of DOM. The development of efficient extraction and enrichment methods as well as characterization techniques from water samples remains a priority for DOM research, which is investigated in this study.

中文翻译：

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溶解有机物的分馏和表征使用固相萃取，然后是傅里叶变换离子回旋共振质谱与电喷雾、大气压光电离和激光解吸电离

傅里叶变换离子回旋共振质谱 (FT-ICR MS) 与不同的电离技术相结合，提供了一种在分子水平上表征溶解有机物 (DOM) 的强大手段。固相萃取 (SPE) 是目前提取 DOM 最广泛使用的方法，但使用甲醇的一步洗脱不能提供 DOM 的全面情况。开发有效的水样提取和富集方法以及表征技术仍然是 DOM 研究的重点，本研究对此进行了研究。