trace element


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trace element

any of various chemical elements, such as iron, manganese, zinc, copper, and iodine, that occur in very small amounts in organisms and are essential for many physiological and biochemical processes

trace element

[′trās ‚el·ə·mənt]
(analytical chemistry)
An element in a sample that has an average concentration of less than 100 parts per million atoms or less than 100 micrograms per gram.
(biochemistry)
A chemical element that is needed in minute quantities for the proper growth, development, and physiology of the organism. Also known as micronutrient.
(geochemistry)
An element found in small quantities (usually less than 1.0%) in a mineral. Also known as accessory element; guest element.
References in periodicals archive ?
Table 6: Pearson correlation coefficients between soil properties and trace element in corn farms
Calcium and phosphate are the major components (hydroxyapatite) in addition to some trace elements which have a profound effect on enamel.
Esfahani EN, Faridbod F, Larijani B, Ganjali MR, Norouzi P: Trace element analysis of hair, nail, serum and urine of diabetes mellitus patients by inductively coupled plasma atomic emission spectroscopy.
However, soil samples were found rich in major and trace elements except Cd, which was low in comparison to world average of agriculture soil.
The brick makers and brick furnaces owners burn the coals as such, without knowing their qualities, thus putting the public in great trouble, dwelling in the vicinity of that furnaces, for being effected from coal dust as well as from the harmful health hazard effects of environment being polluted with harmful health hazardous trace elements.
Wheat also supplies certain inorganic micro nutrients that are life for general growing and maintaining of health while unbalance of these trace elements in different organs and body fluids can cause a wide variety of diseases.
The order uses the company's proprietary VE Technology sampling system to provide a fast and uniquely accurate method of detecting trace elements, such as mercury in the LNG liquification process.
Survey of 13 trace elements of toxic and nutritional significance in rice from Brazil and exposure assessment.
Rare earth elements (REEs) are trace elements which carry important information about the origin, source, evolution and original environment of rock.
The interpretationof trace element analysis in body fluids.
In general Al2O3 and trace element concentrations increase as grain size and SiO2 content decreases.
How these trace elements affect our general health is still unclear at this time.