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研究人体组织和体液中的微量元素,首先要考虑所选样品能否反应出与正常值的偏差,其次是元素分析技术的精密度和准确度是否合乎要求。活体样品的分析有很大的生物学意义,但是活体取样必须有充分的临床依据。所以研究者把注意力集中到那些从人体容易获得的样品,即全血及其组成成分、尿、乳汁、粪便、头发、指甲,有时还选用唾液、胎盘、羊水作为样品。应注意,选择一个有意义的指标或若干指标以及随后对数据的评价、解释、需要生理学专门知识。本文旨在讨论代谢对微量元素水平的影
To study trace elements in human tissues and body fluids, it is necessary to consider whether the selected sample can reflect deviations from the normal value, and secondly, whether the precision and accuracy of elemental analysis techniques are satisfactory. Analysis of living samples is of great biological significance, but live samples must have adequate clinical evidence. So the researchers focused their attention on samples that were readily available from the body, namely whole blood and its components, urine, milk, manure, hair, nails, and sometimes saliva, placenta and amniotic fluid. It should be noted that the selection of a meaningful indicator or indicators, and subsequent evaluation of the data, explains that physiological expertise is required. This article aims to discuss the effect of metabolism on trace element levels