Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, CH-8092, Zurich, Switzerland.
Environ Sci Process Impacts. 2015 Dec;17(12):2002-5. doi: 10.1039/c5em90046h.
Dissolved organic matter (DOM) is a critical component of natural waters, providing an important nutrient source for the microbial community, binding and interacting with metals and pollutants, and serving as a major reservoir of carbon in the global carbon cycle. Differences in organic material origin as well as biotic and abiotic transformation processes produce DOM of varying composition. These highly complex mixtures are difficult to characterize due to the diversity of compounds found in DOM. This Highlight examines three recent publications that study the methods used to characterize DOM and how storage and handling of DOM samples may affect its composition. Collectively, these publications underscore the challenges that researchers face when working with natural organic matter and offer important considerations for natural organic matter handling and analysis.
溶解有机质 (DOM) 是自然水体的重要组成部分，为微生物群落提供了重要的营养来源，与金属和污染物结合并相互作用，同时也是全球碳循环中碳的主要储存库。有机物质来源以及生物和非生物转化过程的差异会产生组成不同的 DOM。由于 DOM 中存在多种化合物，因此这些高度复杂的混合物很难进行特征描述。本亮点介绍了三篇最近的研究出版物，这些出版物研究了用于描述 DOM 的方法，以及 DOM 样品的储存和处理方式如何影响其组成。这些出版物共同强调了研究人员在处理天然有机物时所面临的挑战，并为天然有机物的处理和分析提供了重要的考虑因素。
