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近年来,生物样品中痕量金属的测定已成为优先的课题,特别是注意到积蓄在人的组织中有毒金属的测定和研究金属对人体健康所起的作用。某些金属对人来说既是有害的,也可以是有益的,这决定于它们的浓度大小和化学结构,而只有极少数金属不论在任何浓度都是没有毒性的。某些金属的不足和过剩都和各种疾病相关。例如,白血病或威尔逊病都与铜量的增高或不足有关。癌症和心脏病与诸如镉、锌、砷、
In recent years, the determination of trace metals in biological samples has become a priority issue. In particular, attention has been paid to the determination of toxic metals accumulated in human tissues and to the role of metals in human health. Some metals are both harmful and beneficial to humans, depending on their concentration and chemical structure, and very few metals are non-toxic at any concentration. Some metal deficiency and excess are associated with various diseases. For example, leukemia or Wilson’s disease are related to the increase or deficiency of the amount of copper. Cancer and heart diseases such as cadmium, zinc, arsenic,