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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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| In addition, the melting process may include the addition of trace elements to modify and manipulate the casting microstructure for improved mechanical properties. Though trace elements of her country past can still be heard, Moorer's latest album is primarily a rocking affair. Her research focuses on the study of trace elements in cord blood and association of a child's development, behavior, and health condition with the distribution of trace elements. |
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