火焰原子吸收光谱法测定砜-胺溶液中的铁

Determination of Fe Content in Amine-sulfolane Solution Containing Corrosion Inhibitor by Flame Atomic Absorption Spectrophotometry

关键词:  火焰原子吸收光谱 缓蚀剂 砜-胺溶液 铁

Key words:  FAAS,corrosion inhibitor,Fe,amine-sulfolane solution

摘要:

研究了合成氨装置含缓蚀剂的砜-胺脱碳溶液中微量铁的火焰原子吸收分光光度测定方法,用钙做抑制剂克服了硅、钾、钠和钒的干扰,用盐酸酸化加热处理试样,消除了不同价态铁的影响。方法 简便、省时,具有良好的精密度和准确度,回收率为92%～104%,相对标准偏差小于5%。

Abstract:

This paper reports the determination of metals Fe in amine-sulfolane solution containing corrosion inhibitor by flame atomic absorption spectrophotometry.After using Ca as inhibition agent,the interference of Si,K,Na,V were avoided.The samples were digest