石墨炉法测定KCl、NaHCO_3粉末中的微量Al

Determination of Trace Aluminum in the Dust of KCl and NaHCO_3 with GFAAS

研究了KCl、NaHCO3 粉末中的微量铝的无焰原子吸收分析方法 ,考察了石墨炉原子化条件、干扰的消除及载气的选择 ,其相对标准偏差小于 5 % ,回收率在 95 %～ 10 5

To determine trace aluminum in the dust of KCl and NaHCO 3 with graphite furnace atomic absorption spectrometry is described. The atomigetion contons of graphitic furnace, elimination of interference and selection of carrier gas are studied.The relative standard deviation is less than 5 %,recovery is between 95 %～105 %.