锌是人体中重要必需微量元素之一,它通过参与许多酶的构成而发挥生理功能,缺锌可导致小儿食欲减退,生长发育迟缓,智力低下,易于感染等。目前对人体内锌营养状况测定方法主要采用测定血清锌含量或发锌含量。二者各有其优缺点,发锌测定法时标本采集方便,易为家长和小儿接受,且发样不易变质,因此用发样作为生物学样 Zinc is one of the essential trace elements in the human body. It plays a physiological role by participating in the constitution of many enzymes. Zinc deficiency can lead to loss of appetite, growth retardation, mental retardation and susceptibility in children. At present, the determination of zinc nutrition in human body mainly uses the determination of serum zinc content or hair zinc content. Both have their own advantages and disadvantages, hair zinc assay when the specimen collection convenience, easy for parents and children to accept, and the hair is not easy to degenerate, so hair sample as a biological sample