将顺序提取与散装和微型X射线光谱学相结合,以阐明铁处理泥炭湖沉积物的铁和物种化

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Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
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Published on: January 7, 2019

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Melanie A Münch1, Andreas Voegelin2, Luis Carlos Colocho Hurtarte3,4

  • 1Utrecht University, Princetonlaan 8A, 3584CB Utrecht, The Netherlands. m.a.munch@uu.nl.

Environmental science. Processes & impacts
|November 25, 2024
PubMed
概括

在浅湖中添加铁可以矛盾地增加沉积物中的释放量. 这项研究表明,虽然铁形成了P沉,但其反应性会在减少条件下导致重新调动,从而阻碍了育恢复.

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Extraction: Advanced Methods00:56

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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
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