原子吸收光谱法和ICP-AES测定水中钠的比较  

Comparative Study of Two Methods in the Determination of Sodium in Water by AAS and ICP-AES

作　　者：丁冬梅[1] 

机构地区：[1]天津市环境监测中心,天津市300191

出　　处：《光谱实验室》2007年第2期119-121,共3页Chinese Journal of Spectroscopy Laboratory

摘　　要：测定水中钠的含量,ICP-AES具有直接进样、测量稳定、校准曲线线性范围宽等特点;而原子吸收光谱法需要加入消电离剂硝酸铯或氯化铯,实际操作麻烦。该方法经过t检验证明与标准方法无显著性差异,加标回收率为96.9%—104%,可以代替原子吸收光谱法,相对标准偏差各为0.7%、0.8%。Comparing two methods to determine the content of sodium in water by AAS and ICP-AES,ICP-AES has the advantage of direct feeding,stable determining and wide range of working curve. The atomic absorption spectrophotometry needs the addition of de-ionization such as cesium nitrite or cesium chloride, so it is not convenient in practice. The t-test shows there is no notable difference between these two methods. The ICP-AES method may replace atomic absorption spectrophotometry method. The recovery is in the range of 96.9%-104% with the RSD of 0. 7% and 0.8 %,respectively.

关 键 词：原子吸收光谱法 电感耦合等离子体-原子发射光谱法 水 钠 比较 

分 类 号：O657.31[理学—分析化学]