原子吸收测定玻璃和耐火材料中钾、钠、锂

Determination of K^+, Na^+ and Li^+ in Glass and Refractory by The Atomic Absorption Spectrometric Method

用原子吸收光谱法测定玻璃和耐火材料中K、Na和Li简便而快速。三元素之间虽有干扰,但加入消电离剂后即可消除。玻璃中常见元素一般均无干扰。分解一次样品,除了能测定Li、Na、K外,还可同时测定Fe、Zn、Ca、Mg、Pb等元素。

It is simple and convenient to determine the amount of K+, Na+, and Li+ in glass and refractory by the atomic absorption speetrometric method. In addition to K+, Na+, and Li+, the amount of Fe, Zn, Ca, Mg, and Pb can be determined at the same time. The interacts of K.+,Na+ and Li+ when determined can be eliminated by adding deionizer CsNO3. The influence of other elements on the determination of K+, Na+, and Li+ can be reduced greatly when the weighing of the samples is controlled, keeping the concentration of other elements in glass under 1000 ppm. The operation instructions are worked out by the author according to the experimental results, in which the compounding of standard solution and the treatment of the samples are drawn up. Finally, the analysis method is proved with standard samples.