Analysis of Pb concentrations in blood was performed by graphite furnaceatomic absorption spectrometry (type AA700, Perkin Elmer, USA), and the standardized samples were friendly provided by the Center for Disease Control, USA.
英
美
释义
美国 Perkin Elmer公司生产的AA700型原子吸收仪,血铅标准品出 美国疾病控制中心(CDC)提供。
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