(Chemistry) chem a coordination compound in which a metal atom or ion is bound to a ligand at two or more points on the ligand, so as to form a heterocyclic ring containing a metal atom
1. of or noting a heterocyclic compound having a central metallic ion attached by covalent bonds to two or more nonmetallic atoms in the same molecule.
2. having a chela or chelae.
n.
3. a chelate compound.
v.i.
4. (of a heterocyclic compound) to form a chelate in a reaction.
v.t.
5. to combine (an organic compound) with a metallic ion to form a chelate.
form, constitute, make - to compose or represent:"This wall forms the background of the stage setting"; "The branches made a roof"; "This makes a fine introduction"
Adj.
1.
chelate - relating to or characterized by chelation
Concern over the effects of oral succimer on GI lead absorption is justified because succimer exhibits high Pb-binding affinity [Pb-DMSA chelate formation constant = 2.9 x [10.sup.17] (12)].
Holden, plant physiologists, are trying to understand how the root "turns on" an enzyme - called an iron chelate reductase - in response to the stress of iron deficiency.
The electronic spectral results showed the existence of pp (phenyl ring) and np(C=N) of the ligands and suggested the geometrical structures of the chelates. Meanwhile the mass spectral data revealed the fragmentations of the Schiff base anthranilic acid and their Ni(II) mixed ligand chelate has been preformed the only chelate conducted for justification.
* The US Environmental Protection Agency (EPA) has given AkzoNobel's Dissolvine GL biodegradable and bio-based chelate its Design for the Environment (DIE) label.
Because I have long scars on either side of my spine, in spite of neural therapy, whenever I chelate metal without a sufficient binding aid, it sets up a battery feeling on my spine from unbound toxic metal that goes to the scars.
It is concluded that iron-methionine chelate is more efficient than iron sulfate and 200 ppm iron supplementation as Fe-Met is recommended for maximum iron enrichment in broiler meat.
Albion pioneered the use of Fast-Fourier Transforming Infrared spectroscopy (FT-IR) to identify bonds between the ligand and mineral, and to verify the molecular structure is that of a true chelate.
The most vital parameters influencing chelator efficiency to chelate ions from aqueous solutions; pH, loading capacity, and kinetic of sorption were estimated using batch method reported in the literature [28, 29].
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