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Updated: Jun 4, 2025

Quantification of the Potential Impact of Glyphosate-Based Products on Microbiomes
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Quantification of the Potential Impact of Glyphosate-Based Products on Microbiomes

Published on: January 10, 2022

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甘酸盐结合和物种化在水-甲基石界面:与红外光谱学和MO/DFT相一致的表面复合模型

Bram Geysels1, Tjisse Hiemstra2, Jan E Groenenberg2

  • 1Soil Chemistry and Chemical Soil Quality Group, Wageningen University & Research, PO BOX 47, Wageningen 6700 AA, the Netherlands; INVITE GmbH, Otto-Bayer-Straße 32, D-51061 Cologne, Germany.

Water research
|December 31, 2024
PubMed
概括

甘酸盐 (PMG) 与石结合涉及单酸盐和双酸盐复合体,这对于了解其环境命运和优化废水排放至关重要. 这项研究量化了PMG在金属氧化物上的吸附机制.

关键词:
B3LYPYP 在线播放在CD-MUSIC建模中.草甘是一种天然的草甘.哥斯提人 哥斯提人是一个哥斯提人.MO/DFTT 的时间.表面的特异化是表面的特异化在 ωB97M-V 的情况下,在 ωB97X-D 中.

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Speciation and Bioavailability Measurements of Environmental Plutonium Using Diffusion in Thin Films12:22

Speciation and Bioavailability Measurements of Environmental Plutonium Using Diffusion in Thin Films

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Complexometric Titration: Ligands

Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...
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Complexation Equilibria: The Chelate Effect

In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
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Factors Affecting Solubility

Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
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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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Complexation Equilibria: Overview01:23

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Complexation reactions take place when dative or coordinate covalent bonds form between metal ions and ligands. The compounds formed in these reactions are called coordination compounds. The number of bonds formed between the metal ion and the ligands is called its coordination number. Generally, most metal ions in an aqueous solution are solvated by water molecules and thus exist as aqua complexes.
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