Methods: 1148 children's venous blood lead was detected by the method of graphite furnace atom absorbance spectrum.
2
方法：对铅防门诊和部分幼儿园的市区3~6岁学前儿童抽样检测血铅，并进行问卷调查与统计分析。
Methods: Choise the 3~6 years old children from outpatient of lead prevention and some kindergarten to test their blood lead and question investigation, then statistics and analysis on the results.
3
方法：采用电感耦合高频等离子体原子发射光谱法对66例哮喘患儿及60例健康儿童进行了血铅含量检测。
Methods: The content of blood lead was determined by ICP AES for 66 infants suffering from asthma and 60 healthy infants.
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