快速标准加入无火焰原子吸收光谱法测定人血和动物血中铅和镉
Determination of Lead and Cadmium in Human and Animal Blood Samples by Flameless Atomic Absorption Spectrometry with Rapid Standard Addition
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摘要: 用快速简便的标准加入无火焰原子吸收光谱法测定人血和动物血中有害元素铅和镉.与普通的标准加入法相比,此法在样品前处理、标准曲线绘制及样品结果计算上都有了很大的简化.方法检出限为铅2.00μg/L,镉0.30μg/L;回收率为铅99.5%～101.2%,镉99.7%～101.3%;精密度为铅0.95%,镉2.18%.方法灵敏度高,精密度好,适用于特定人群血液中铅和镉含量的普查.Abstract: A method for the determination of harmful elements of lead and cadmium in the human and animal blood samples by flameless atomic absorption spectrometry with rapid standard addition is reported in this paper. The detection limits of the method are 2.00 μg/L for Pb and 0.30 μg/L for Cd. The recovery of the method are 99.5%～101.2% for Pb and 99.7%～101.3% for Cd with the precision of 0.95%RSD for Pb and 2.18%RSD for Cd. The method provides the advantages of high sensitivity and precision, simple sample preparation, calibration and result calculation. The method is suitable for general survey of Pb and Cd in human blood.
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