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chelation

the use of this process to remove metal ions from solution, especially to counter poisoning by heavy metals

Chemical weathering process that involves the extraction or metallic cations from rocks and minerals by chelates

therapy to remove excess iron which builds up in the blood of frequent transfusion recipients

A chemical complexing (forming or joining together) of metallic cations (such as copper) with certain organic compounds, such as EDTA (ethylene diamine tetracetic acid) Chelation is used to prevent the precipitation of metals (copper) Also see sequestration

{i} (Chemistry) creation of chelates (compound made of metallic and nonmetallic ions)

the process by which both naturally occurring and artificial agents can be used as sequestering agents, thereby making radionuclides and other chemicals in a particular media available for transfer to another environment Artificial chelating agents such as EDTA have a wide variety of industrial uses, and are often used to remove radioactive contamination Unfortunately, natural chelating agents and chelating processes make plutonium oxide from stratospheric fallout and nuclear accidents which is usually in a biologically unreactive state in soils and sediment much more biologically available for uptake in pathways to human consumption Almost no information is available about the long-term mobilization of plutonium isotopes by naturally occurring chelating agents (See Hanson, 1980, Section 10)

the process of forming a ring by forming one or more hydrogen bonds (medicine) the process of removing a heavy metal from the bloodstream by means of a chelate as in treating lead or mercury poisoning

the formation of a polydentate chelate compound from a metal salt

Treatment of heart and other circulatory conditions through EDTA, Vitamins and Minerals, which carry out from the body, heavy metals like lead, and arsenic, as well as other foreign substances It is a clinically proven therapy for metal poisoning

Therapy is the intravenous administration of the amino acid EDTA which latches onto and helps remove excess heavy metals from the body It is often used to treat arteriosclerosis and dangerously high amounts of lead, mercury, nickel and copper in the body It also provides an alternative to bypass surgery and angioplasty

the process of forming a closely associated complex with a metal in which the meatl is surrounded by and multiply bound to part of an organic structure, thereby usually altering both the chemical reactivity and transport properties of the metal

A reaction between a metallic ion and an organic compound that removes the metallic ion from solution Chelation is a natural reaction in most soils and is enhanced by organic matter, especially humus Chelation is similar to cation exchange, except that it usually is more stable in holding ions Most of the trace cation nutrients are held in soil by chelation (copper, iron, manganese)

The process of binding and removing metal ions from the body Chelation is used to treat metal poisoning, such as lead poisoning

- A process that combines a mineral with an amino acid Our bodies have a difficult time absorbing minerals and chelation provides for better absorption

(medicine) the process of removing a heavy metal from the bloodstream by means of a chelate as in treating lead or mercury poisoning

The act or process of causing a metal ion to react with another molecule to form a chemical compound, which is unusually excreted from the body Usually refers to heavy metals, which are drawn out of the cells in the method to be excreted at a later time

the process of forming a ring by forming one or more hydrogen bonds

The solubilisation of a metal salt by forming a chemical complex or sequestering

Process of binding a metal to another substance Of ten done with calcium to enhance absorption Although chelation helps, it is not as bioavailable as the natural organic form in which calcium is found in coral

In chemistry, this describes the combination of a metallic ion with heterocyclic ring structures in such a way that the ion is held by bonds from each of the rings

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