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Redox Chemistry and Natural Organic Matter (NOM): Geochemists' Dream, Analytical Chemists' Nightmare

机译：氧化还原化学和天然有机物（NOM）：地球化学家的梦想，分析化学家的噩梦

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Natural organic matter (NOM) is an inherently complex mixture of polyfunctional organic molecules. Because of their universality and chemical reversibility, oxidation/reductions (redox) reactions of NOM have an especially interesting and important role in geochemistry. Variabilities in NOM composition and chemistry make studies of its redox chemistry particularly challenging, and details of NOM-mediatcd redox reactions are only partially understood. This is in large part due to the analytical difficulties associated with NOM characterization and the wide range of reagents and experimental systems used to study NOM redox reactions. This chapter provides a summary of the ongoing efforts to provide a coherent comprehension of aqueous redox chemistry involving NOM and of techniques for chemical characterization of NOM. It also describes some attempts to confirm the roles of different structural moieties in redox reactions. In addition, we discuss some of the operational parameters used to describe NOM redox capacities and redox states, and describe nomenclature of NOM redox chemistry. Several relatively facile experimental methods applicable to predictions of the NOM redox activity and redox states of NOM samples are discussed, with special attention to the proposed use of fluorescence spectroscopy to predict relevant redox characteristics of NOM samples.

机译：天然有机物（NOM）是多官能有机分子固有的复杂混合物。由于它们的通用性和化学可逆性，NOM的氧化/还原（氧化还原）反应在地球化学中具有特别有趣和重要的作用。 NOM组成和化学的变化使得对其氧化还原化学的研究特别具有挑战性，并且仅部分了解了NOM介导的氧化还原反应的细节。这在很大程度上是由于与NOM表征相关的分析困难以及用于研究NOM氧化还原反应的试剂和实验系统范围广泛。本章总结了正在进行的工作，以提供对包括NOM的水性氧化还原化学和NOM的化学表征技术的连贯理解。它还描述了一些尝试，以确认不同结构部分在氧化还原反应中的作用。此外，我们讨论了一些用于描述NOM氧化还原容量和氧化还原状态的操作参数，并描述了NOM氧化还原化学的命名法。讨论了几种适用于NOM样品的NOM氧化还原活性和氧化还原状态预测的相对简便的实验方法，并特别注意了使用荧光光谱法预测NOM样品的相关氧化还原特性的建议。

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《Aquatic redox chemistry》|2010年|p.85-111|共27页
会议地点 San Francisco CA(US);San Francisco CA(US)
作者
Donald L. Macalady; Katherine Walton-Day;
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作者单位

Department of Chemistry and Geochemistry, Colorado School of Mines,Golden, CO 80401;

U.S. Geological Survey, Colorado Water Science Center, Denver Federal Center, Box 25046, MS 415, Denver, CO 80225;

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正文语种 eng
中图分类环境化学;
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2. Bank filtration in a coastal lake in South Brazil: water quality, natural organic matter (NOM) and redox conditions study [J] . Romero-Esquivel L. G., Grischek T., Pizzolatti B. S., Clean technologies and environmental policy . 2017,第8期

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3. New light on a dark subject: On the use of fluorescence data to deduce redox states of natural organic matter (NOM) [J] . Donald L. Macalady, Katherine Walton-Day Permafrost and periglacial processes . 2009,第2期

机译：暗物体上的新光：利用荧光数据推论天然有机物（NOM）的氧化还原状态
4. Redox Chemistry and Natural Organic Matter (NOM): Geochemists' Dream, Analytical Chemists' Nightmare [C] . Donald L. Macalady, Katherine Walton-Day Symposium on aquatic redox chemistry . 2011

机译：氧化还原化学和天然有机物（NOM）：地球社梦想，分析化学家的梦魇
5. The use of analytical techniques for the characterization of natural organic matter (NOM) and the assessment of NOM's transformations, interactions, and removal during drinking water treatment. [D] . Crosson, Kenya Michelle. 2005

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Redox Chemistry and Natural Organic Matter (NOM): Geochemists' Dream, Analytical Chemists' Nightmare

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