| 离子交换萃取-气质联用测定凝结水中有机酸 |
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| 引用本文： | 李静,刘景洋,乔琦,海热提·吐尔逊,孙晓明.离子交换萃取-气质联用测定凝结水中有机酸[J].环境科学与技术,2013(2):120-123,136. |
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| 作者姓名： | 李静 刘景洋 乔琦 海热提·吐尔逊 孙晓明 |
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| 作者单位： | 中国环境科学研究院,国家环境保护生态工业重点实验室;北京化工大学化学工程学院 |
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| 基金项目： | 国际科技合作项目:石化和制药行业节水减排技术合作研究(2010DFB90590) |
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| 摘 要： | 以某制药厂含有机酸凝结水为研究对象,建立了气质联用(GC-MS)测定有机酸的方法,研究了不同的进样方式及pH条件对离子交换萃取效率的影响。研究结果表明:GC-MS检测得到凝结水中含有甲酸、乙酸、丙酸、丁酸、戊酸、己酸、异丁酸和2-甲基丁酸8种有机酸,GC-MS能将这8种有机酸完全分开;GC-MS检测得到标准曲线线性为:0.999、0.999、0.999、0.999、0.999 8、0.999 8、0.999 7、0.999 2,标准偏差分别为0.05、0.09、0.05、0.02、0.02、0.05、0.06、0.06;调节水样pH值为7且进样0.2 mL时有机酸的回收率分别为92.55%、83.48%、92.38%、101.4%、93.82%、97.24%、92.87%、93.81%。
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| 关 键 词： | 离子交换 萃取 GC-MS 有机酸 |
Methods of Ion Exchange Extraction and GS-MS for Detecting Organic Acid in Condensate Water |
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| LI Jing,LIU Jing-yang,QIAO Qi,HAIRETI Tu-er-xun,SUN Xiao-ming.Methods of Ion Exchange Extraction and GS-MS for Detecting Organic Acid in Condensate Water[J].Environmental Science and Technology,2013(2):120-123,136. |
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| Authors: | LI Jing LIU Jing-yang QIAO Qi HAIRETI Tu-er-xun SUN Xiao-ming |
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| Institution: | 1(1.State Key Laboratory of Environmental Protection Ecology Industry,Chinese Research Academy of Environment Science,Beijing 100012,China;2.School of Chemical Engineering,Beijing University of Chemical Technology, Beijing 100029,China) |
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| Abstract: | Taking condensate water containing organic acid from a pharmaceutical factory as an example,effects of different sample injection patterns and pH on ion exchange extraction efficiency were discussed,and measures and determination methods of organic acid by GC-MS were established.Results indicated that GC-MS could detect and completely separate formic acid,acetic acid,propionic acid,butyric acid,pentatonic acid,isobutyric acid and 2-methyl-butyric acid.The standard curve linearity of GC-MS was 0.999,0.999,0.999,0.999,0.999 8,0.999 8,0.999 7 and 0.999 2 respectively,standard deviations 0.05,0.09,0.05,0.02,0.02,0.05,0.06 and 0.06 respectively.Organic acid recovery rates were 92.55%,83.48%,92.38%, 101.4%,93.82%,97.24%,92.87% and 93.81% when adjusting water sample pH and injection amounted to 7 and 0.2 mL. |
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| Keywords: | ion exchange extraction GC-MS organic acid |
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