目的 建立芩連抗病毒合劑中鉛含量測(cè)定的原子吸收分光光度法。方法 采用石墨爐原子吸收法，檢測(cè)波長(zhǎng)為283.3 nm，燈電流為9 mA，狹縫寬度為0.5 nm。結(jié)果 鉛的質(zhì)量濃度在0～0.20 μg/mL與吸光度線性關(guān)系良好r＝0.999 5，回收率為98.7%，RSD＝2.1%（n＝3）。結(jié)論 所建方法能夠簡(jiǎn)便、快速、準(zhǔn)確的測(cè)定芩連抗病毒合劑中鉛的含量。

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.