7岁以下健康儿童2003例全血六种矿物质含量调查

Survey on mineral content in whole blood of healthy children under 7-year old

[目的]在尽可能减少采样污染和检验误差的前提下了解儿童全血中六种矿物质的含量,为儿童营养改善和铅中毒的防治做好基础工作。 [方法]在全市城乡随机抽样2 003例0-6岁儿童作为调查样本,采集静脉血用原子吸收光谱法（AAS）检测儿童全血中六种矿物质的含量。 [结果]7岁以下不同性别、不同年龄组儿童全血中六种矿物质含量差别不大;锌、钙、铁的缺乏常见,儿童铅中毒的发生率为7.44%,其中轻度铅中毒占97.98%。 [结论]与前几年调查资料比较,儿童铅中毒的患病率已有明显下降,但锌、钙、铁的缺乏仍然常见。儿童和成人全血中六种营养素的正常值大致相同,没有必要另外制订儿童标准。

[Objective] In order to prevent lead poisoning and improve the nutrition of children,blood lead,calcium and other main trace elements level of the children were detected. [Methods] 2 003 healthy children aged 0～6 years were selected randomly from the whole city and rural.Lead,Calcium and other main trace elements of the blood samples were analyzed with Atomic Absorption Spectrum（AAS）. [Results] There was no significant difference in the mineral levels of blood among different age groups.The incidence of lead-poisoned was 7.44%（mild lead-poisoned,97.98%）. [Conclusions] Incidence of lead poisoning is decreasing.Normal reference values of mineral level in children can adopt adult＇s standard.But there had large limitation in the mineral level detection of whole blood sample of children in local general hospitals currently.