目的 建立芩连抗病毒合剂中铅含量测定的原子吸收分光光度法。方法 采用石墨炉原子吸收法，检测波长为283.3 nm，灯电流为9 mA，狭缝宽度为0.5 nm。结果 铅的质量浓度在0～0.20 μg/mL与吸光度线性关系良好r＝0.999 5，回收率为98.7%，RSD＝2.1%（n＝3）。结论 所建方法能够简便、快速、准确的测定芩连抗病毒合剂中铅的含量。

Objective To establish an atomic absorption spectrometry method for determination of Pb in Qinlian Kangbingdu Mixture (QKM). Methods To establish the graphite furnace atomic absorption spectrometry (GFAAS) method for the determination. The determined wavelength was at 283.3 nm, the electric current of the light was 9 mA, and the slit-width was 0.5 nm. Results The good linear relationship was shown in the range of 0 ~ 0.20 μg/mL for Pb by GFAAS with the regression coefficient of 0.999 5. The average recovery rate was 98.7%, RSD = 2.1% (n = 3). Conclusion The method is simple, accurate sensitive, and suitable for the determination of Pb content in QKM.