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单词 chelate
释义

Definition of chelate in English:

chelate

noun ˈkiːleɪtˈkileɪt
Chemistry
  • A compound containing a ligand (typically organic) bonded to a central metal atom at two or more points.

    〔化〕螯合物

    Example sentencesExamples
    • Organic acids have been shown to increase the solubility of minerals and form strongly bound complexes and chelates with many metal cations.
    • Stability constants of organic chelates on mineral or metal surfaces are thought to approximate levels measured by solution chemistry.
    • Magnesium chelates, another supplement option, are easily absorbed.
    • This can be managed with timely applications of iron chelates formulated for such purposes.
    • Iron chelates also can be used for foliar application.
adjective ˈkiːleɪtˈkileɪt
Zoology
  • (of an appendage) bearing chelae.

    〔动〕(附肢)具螯的,螯状的

    Example sentencesExamples
    • The specimen bears three chelate pereiopods, with the first much larger than the others.
    • The first chelate pereiopods of galatheoids are long and often much longer than the remainder of the pereiopods.
verbˈkiːleɪtˈkileɪt
[with object]Chemistry
  • Form a chelate with.

    〔化〕与…生成螯合物

    Example sentencesExamples
    • It chemically captures, or chelates, excess iron but must be given intravenously or by injection.
    • However, quinolones chelate with cations such as aluminum, magnesium, calcium, iron, and zinc.
    • ALA not only may help chelate heavy metals but is important for replenishing GSH levels.
    • When EDTA chelates the ions, the solution changes to the blue color of the indicator in alkaline solution.
    • EDTA chelates divalent cations and thus prevents the formation of the inactive complex.

Derivatives

  • chelation

  • nounkiːˈleɪʃ(ə)n
    • EDTA chelation was performed to remove the superficial calcium.
      Example sentencesExamples
      • They can act directly by entering the redox reactions, and indirectly by chelation of iron.
      • Product manufacturers have attempted to mimic this process by combining minerals with amino acids in the process of chelation.
      • Metal chelation is not expensive, but it is a lengthy process.
      • This results in the release of acidic pectins and methanol as well as increased cell wall rigidity and calcium chelation.
  • chelator

  • noun
    • Studies with these ions and chelators confirm the predictions.
      Example sentencesExamples
      • After the second blood sample had been collected, all patients had their iron chelation therapy switched to the other chelator.
      • Organic chelators that are thought to be of recent biological origin control copper speciation in seawater.
      • Studies looking at the effects of antioxidants used in conjunction with chelating agents have investigated their role as potential aids to chelators.
      • However, this difference disappears upon addition of heavy metal chelators in the extracellular bath.

Definition of chelate in US English:

chelate

nounˈkileɪtˈkēlāt
Chemistry
  • A compound containing a ligand (typically organic) bonded to a central metal atom at two or more points.

    〔化〕螯合物

    Example sentencesExamples
    • Magnesium chelates, another supplement option, are easily absorbed.
    • Iron chelates also can be used for foliar application.
    • Organic acids have been shown to increase the solubility of minerals and form strongly bound complexes and chelates with many metal cations.
    • This can be managed with timely applications of iron chelates formulated for such purposes.
    • Stability constants of organic chelates on mineral or metal surfaces are thought to approximate levels measured by solution chemistry.
adjectiveˈkileɪtˈkēlāt
Zoology
  • (of an appendage) bearing chelae.

    〔动〕(附肢)具螯的,螯状的

    Example sentencesExamples
    • The specimen bears three chelate pereiopods, with the first much larger than the others.
    • The first chelate pereiopods of galatheoids are long and often much longer than the remainder of the pereiopods.
verbˈkileɪtˈkēlāt
[with object]Chemistry
  • Form a chelate with.

    〔化〕与…生成螯合物

    Example sentencesExamples
    • However, quinolones chelate with cations such as aluminum, magnesium, calcium, iron, and zinc.
    • ALA not only may help chelate heavy metals but is important for replenishing GSH levels.
    • It chemically captures, or chelates, excess iron but must be given intravenously or by injection.
    • EDTA chelates divalent cations and thus prevents the formation of the inactive complex.
    • When EDTA chelates the ions, the solution changes to the blue color of the indicator in alkaline solution.
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更新时间:2024/9/21 13:18:20