石墨炉原子吸收法直接测定茶饮料中铅

Direct determination of lead in tea drinks by graphite furnace atomic absorption spectrometry

目的:应用石墨炉原子吸收炉内直接消化测定茶饮料中铅含量。方法:样品经稀释后直接进样测定。结果:茶饮料中铅的加标回收率为96.7%～103.8%,相对标准偏差在0.78%～3.39%之间。结论:使用本方法检测茶饮料中铅,操作简单,结果准确,有较强的实用性。

Objective：To apply the method for detecting lead in tea drinks by direct inner furnace digestion in graphite furnace atomic absorption spectrometry.Methods： The samples were directly injected for determination after dilution.Results： The standard recovery rate of lead in tea drinks was 96.7%～103.8%,the relative standard deviation was 0.78%～3.39%.Conclusion： Lead detections in tea drinks under this condition can quickly get the accurate results through the minimal procedures.