Identification of next-generation International Humic Substances Society reference materials for advancing the understanding of the role of natural organic matter in the Anthropocene
Identification of next-generation International Humic Substances Society reference materials for advancing the understanding of the role of natural organic matter in the Anthropocene
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DOI：
10.1007/s00027-022-00923-x
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发表时间：
2023-01
期刊：
影响因子：
2.4
通讯作者：
Y. Chin;D. McKnight;J. D’Andrilli;Nicole Brooks;K. Cawley;J. Guerard;E. Perdue;C. Stedmon;Paul G Tratnyek;P. Westerhoff;A. Wozniak;P. Bloom;C. Foreman;R. Gabor;Jumanah Hamdi;Blair Hanson;R. Hozalski;A. Kellerman;G. McKay;Victoria Silverman;R. Spencer;C. Ward;Danhui Xin;F. Rosario‐Ortiz;Christina K. Remucal;D. Reckhow
中科院分区：
文献类型：
--
作者：
Y. Chin;D. McKnight;J. D’Andrilli;Nicole Brooks;K. Cawley;J. Guerard;E. Perdue;C. Stedmon;Paul G Tratnyek;P. Westerhoff;A. Wozniak;P. Bloom;C. Foreman;R. Gabor;Jumanah Hamdi;Blair Hanson;R. Hozalski;A. Kellerman;G. McKay;Victoria Silverman;R. Spencer;C. Ward;Danhui Xin;F. Rosario‐Ortiz;Christina K. Remucal;D. Reckhow
在我们能够充分了解天然有机质（NOM）在土壤和水生系统中所起的多方面作用之前，还有许多挑战。尽管使用最新的分析技术在了解NOM的性质和反应性方面取得了相当大的进展，但这些挑战仍然存在。近40年来，国际腐殖质学会（IHSS，一个非营利性的科学学会）已经分发了标准物质，这些标准物质遵循严格的分离协议和参考材料，这些标准物质是批量收集的，来自明确定义的地点。这些NOM标准样品和参考样品为设计实验和开发新的分析方法提供了相对统一的材料。分离NOM、腐植酸和黄腐酸部分的方案利用成熟的制备规模柱层析和反渗透方法。这些标准和参考NOM样本被国际科学界用于研究从工程系统到自然系统的一系列学科的NOM，从而播种跨研究领域的知识转移。最近，用于表征NOM的强大的新分析技术揭示了其组成的复杂性，超越了“微生物”与“陆地”前体范式。为了继续推进人类世时期的NOM研究，召开了一次研讨会，以确定NOM样品的潜在新地点，这些地点将包括一系列来源和前体材料，并将与研究NOM在介导环境和生物地球化学过程中的作用有关。我们预计，扩大对研究界可用的IHSS参考和标准NOM样本的组合，将使这一多样化的科学家和工程师群体更好地了解在人为介导变化的影响下，NOM在全球发挥的作用。
Many challenges remain before we can fully understand the multifaceted role that natural organic matter (NOM) plays in soil and aquatic systems. These challenges remain despite the considerable progress that has been made in understanding NOM’s properties and reactivity using the latest analytical techniques. For nearly 4 decades, the International Humic Substances Society (IHSS, which is a non-profit scientific society) has distributedstandardsubstances that adhere to strict isolation protocols andreferencematerials that are collected in bulk and originate from clearly defined sites. These NOM standard and reference samples offer relatively uniform materials for designing experiments and developing new analytical methods. The protocols for isolating NOM, and humic and fulvic acid fractions of NOM utilize well-established preparative scale column chromatography and reverse osmosis methods. These standard and reference NOM samples are used by the international scientific community to study NOM across a range of disciplines from engineered to natural systems, thereby seeding the transfer of knowledge across research fields. Recently, powerful new analytical techniques used to characterize NOM have revealed complexities in its composition that transcend the “microbial” vs. “terrestrial” precursor paradigm. To continue to advance NOM research in the Anthropocene epoch, a workshop was convened to identify potential new sites for NOM samples that would encompass a range of sources and precursor materials and would be relevant for studying NOM’s role in mediating environmental and biogeochemical processes. We anticipate that expanding the portfolio of IHSS reference and standard NOM samples available to the research community will enable this diverse group of scientists and engineers to better understand the role that NOM plays globally under the influence of anthropogenic mediated changes.