药厂废液中有机酸的分离分析

利用减压蒸溜法分离废液中的低沸点有机酸,结合红外光谱、气相色谱、质谱,确定了废液中以乙酸、丙酸为主的10种有机酸的结构,其含量占分析废液的2.64%。其中丙酸含量最高,其次为乙酸。同时被检测到的还有乙醇,乙醛等。另外通过柱层析分离高级脂肪酸,并进行衍生化处理,经GC、GC-MS检测,确定了四种高沸点有机酸的结构,含量为1.71%。9,12-十八二烯酸含量相对较高。因此有机酸占废液总量的质量分数为4.35%。

Separation and analysis of organic acids in pharmaceutical waste water

Lower boiling point organic acids in pharmaceutical waste water were separated by using reduced-pressure distillation.Qualitative and quantitative analysis of lower bailing point organic acids were performed by fourier transform infrared spectrometry,gas chromatography and GC-mass spectrometry.Ten organic acids were examined.The quantity of lower boiling point acids was 2.64% in pharamaceutial waste waster.Among them,the quantity of propionic acid was the most,acetic acid was the next most.Meanwhile,ethanol and ethanal were examined too.Moreover,Highter boiling point organic acids in pharmaceutical waste water were separated using ion exchange column chromatography,and derived. Four organic acid were confirmed,their quantity was 1.71% relative to waste water .The quantity of 9,12-octadecene diacid was the most in higher boiling point organic acids.Total of organic acids was 4.45% in pharmaceutial waste water.