| 废水中糠醛的比色测定 |
| 摘要点击 774 全文点击 695 投稿时间：1992-03-02 |
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| 中文关键词 糠醛 炼油废水 比色测定 |
| 英文关键词 furfural aniline acetate colorimetry orthogonal design |
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| 中文摘要 |
| 本文采用醋酸苯胺与糠醛作用缩合成红色化合物的特性,运用正交设计合理选择实验条件.取经水蒸汽蒸馏后的炼油废水样品,加入醮酸苯胺和稳定剂,在20℃的水浴中显示40分钟,于波长518nm处比色测定糠醛含量.测定上限3.0mg/L,最低检出浓度为0.3mg/L,加标回收率90—110%,变异系数<5%。 |
| 英文摘要 |
| The characteristics of the condensation reaction aniline acetate and furfural with the formation of a red compound was adopted to determine the content of furfural in wastewater. The conditions for the determination were optimized by using the orthogonal design. Thus, aniline acetate and stabilizing agent were added to the sample of the waste water of oil refining after preliminary treatment with steam distillation, then the sample was colourated for forty minutes in water bath at 20℃, and the content of the furfural was determined by colorimetry at wave length of 518 nm. The recovery of the method was measured to be from 90% to 110% and variation coefficient was less than 5%. |
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