目的采用石墨炉原子吸收光谱法测定全血中铅。方法采用0.2%硝酸+0.3%TritonX-100稀释血样,0.1%硝酸钯为基改,通过优化仪器条件,直接进样测定全血中铅。结果血铅浓度在0～500μmol/L范围内呈线性关系,相关系数r=0.9998,相对标准偏差3.24%,回收率在98.4%～102.4%之间。结论该方法简便,快速,灵敏度高,精密度好,结果准确,适用于血中铅的批量测定。 Objective To determine lead in whole blood by graphite furnace atomic absorption spectrometry. Methods Blood samples were diluted with 0.2% nitric acid + 0.3% TritonX-100 and 0.1% palladium nitrate was used as a reference. The whole blood samples were directly injected to determine lead by optimizing the instrument conditions. Results The blood lead concentration showed a linear relationship in the range of 0-500 μmol / L with a correlation coefficient of 0.9998 and a relative standard deviation of 3.24%. The recoveries ranged from 98.4% to 102.4%. Conclusion The method is simple, rapid, sensitive, accurate, accurate and suitable for the determination of lead in blood.