| 脲醛树脂中游离甲醛气相色谱的分析 |
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| 引用本文： | 崔庆新. 脲醛树脂中游离甲醛气相色谱的分析[J]. 中国胶粘剂, 2005, 14(7): 15-17 |
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| 作者姓名： | 崔庆新 |
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| 作者单位： | 聊城大学化学化工学院 山东省聊城市 |
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| 摘 要： | 建立了脲醛树脂中游离甲醛含量的2,4-二硝基苯肼衍生化的气相色谱分析方法。用HP-5弹性石英毛细管柱(30m×0.25mm×0.25μm)分离,以苯甲酸萘酯为内标,线性范围0.2～1.0g/L,线性相关系数R=0.9973,检测限可达0.1g/kg,该法简便快速,分离完全,变异系数CV=2.10%,平均回收率为100.11%,结果满意。
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| 关 键 词： | 气相色谱法 游离甲醛 脲醛树脂 |
| 文章编号： | 1004-2849(2005)07-0015-03 |
| 修稿时间： | 2004-08-30 |
Quantitative analysis of free formaldehyde content in urea resin by gas chromatography |
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| CUI Qing-xin. Quantitative analysis of free formaldehyde content in urea resin by gas chromatography[J]. China Adhesives, 2005, 14(7): 15-17 |
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| Authors: | CUI Qing-xin |
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| Abstract: | The quantitative analysis of free formaldehyde content by gas chromatographic method was carried out with the internal standard method. The internal standard is 2-naphthyl benzoate .The method has a recovery of 100.11%and the coefficient of variation of this analysis of free formaldehyde is 2.10%, The linear correlation coefficient is 0.9973.The method is simple and rapid. |
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| Keywords: | gas chromatography free formaldehyde urea resin |
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