| 毛细管气相色谱法测定MDI级苯胺中的微量苯酚 |
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| 引用本文： | 丁春桃.毛细管气相色谱法测定MDI级苯胺中的微量苯酚[J].化学工业与工程技术,2012,33(1):58-60. |
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| 作者姓名： | 丁春桃 |
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| 作者单位： | 中国石化南化公司检验部,江苏南京,210048 |
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| 摘 要： | 采用气相色谱法,色谱柱为HP—5型,30m×0.32mm×1.0μm毛细管柱,N2为载气,分流比20∶1,运用程序升温和程序流量模式,外标法测定MDI级苯胺中微量苯酚的含量。得到线性回归方程为y=0.305 3x-0.829 1,相关系数r2=0.999 3,标准偏差小于0.5%(n=8),平均回收率99.36%～100.64%。该方法操作简便、快速,能满足MDI级苯胺的检测要求。
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| 关 键 词： | MDI级苯胺 苯酚 气相色谱法 |
Determination of trace phenol in MDI grade aniline by capillary gas chromatography |
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| DING Chuntao.Determination of trace phenol in MDI grade aniline by capillary gas chromatography[J].Journal of Chemical Industry & Engineering,2012,33(1):58-60. |
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| Authors: | DING Chuntao |
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| Affiliation: | DING Chuntao (SINOPEC Nanjing Chemical Industry Co., Ltd., Inspection Department, Nanjing 210048, China) |
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| Abstract: | Trace phenol in MDI grade aniline is determined by external reference method with analytical column HP-5 column（30 m× 0.32 mm × 1.0 μm）, nitrogen as the carrier gas, FID as the detector, 20/1 of split ratio,temperature programming and flow programming. The linear regression equation is obtained and the correlation coefficient is 0. 999 3. The RSD is smaller than 0.5 %, and the recoveries are 99.36 - 100.64 %. This method has advantages of simple and speediness, which can meet the requirement of analysis of MDI grade aniline. |
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| Keywords: | MDI grade aniline Phenol Gas chromatography |
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