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从营养学和毒物学角度了解体内必需微量元素的动态正在受到重视。头发和指甲易采样,样品预处理简单,又因为生长迟缓有不受血中元素暂时性过高或过低影响的优点,所以是探索体内元素代谢的理想样品。对于头发微量元素的分析已经有许多研究,关于指甲元素的分析研究还多半是从疾病方面即所谓临床诊断应用方面的报道,而从营养学和预防医学方面分析元素浓度则甚少。
Understanding the dynamics of essential trace elements in the body from the point of view of nutrition and toxicology is receiving much attention. Easy to sample hair and nails, sample pretreatment is simple, and because of the growth retardation is not affected by temporary high or low blood elements of the advantages, it is to explore the ideal elemental metabolism of the sample. Much research has been done on the analysis of trace elements in the hair, and the analysis of nail elements has mostly been reported in the area of disease, the so-called clinical diagnostic application, while the analysis of elemental concentrations in terms of nutrition and preventive medicine is scarce.