火焰原子吸收光谱法测定玻璃中钾、钠含量

Determination of K and Na in glass by atomic absorption spectrometry

建立了一种火焰原子吸收光谱法(FASS)测定玻璃中的钾、钠含量的方法,对火焰原子吸收的狭缝宽度、燃烧头角度和元素的测定波长进行了优化。结果表明,该方法测定钾含量的相对标准偏差(RSD)为3.4%~4.8%,加标回收率为95%~102%;测定钠含量的相对标准偏差(RSD)为0.8%~4.8%,加标回收率为92%~105%。

A method for the determination of potassium and sodium in glass by flame atomic absorption spectrometry(FASS)is established.In this method,the slit width of FASS,the angle of combustion head and the determination wavelength of elements are optimized.The experimental results show that the RSD of potassium content determined by this method is 3.4%~4.8%and the recovery rate is 95%~102%,and the RSD of sodium content determined by this method is 0.8%~4.8%and the recovery rate is 92%~105%.