【摘要】 建立了用DB -WAX毛细管气相色谱法同时直接分析酸性气体吸收液中二乙醇胺、甲基二乙醇胺的分析方法。结果表明 ,方法回收率为 98 0 7%～ 10 5 5 % ,相对标准偏差为 1 1%～ 5 3%。该方法准确、快速、简便 ,分离效果好 ,可用于工厂常规分析更多还原

【Abstract】 A method for determination of diethylolamine(DEA) and methyl-diethylolamine (MDEA) in absorption solution of acid gases by capillary gas chromatography is described It was operated at 220 ℃ on a DB-WAX 30 m×0 53 mm capillary column The detector temperature was 350 ℃ Triethylene glycol was used as the internal standard and the correction factors of DEA and MDEA were 1 321 and 0 728,respectively The relative standard deviation is 1 1%～5 3%( n =6) with 98 07%～105 5% recovery This method has the advantages of accuracy, rapidity and simplicity [更多还原