石油化工2012，Vol.41Issue(3)：342-346,5.
气相色谱法测定污水中苯胺类化合物
Determination of Aniline and Its Substituted Derivatives in Sewage Water by Gas Chromatography
王洪明 1江丕森 2侯晓虹 1伦小文 1张聪璐 1梁宁1
作者信息
- 1. 沈阳药科大学制药工程学院,辽宁沈阳110016
- 2. 沈阳振兴环保产业集团有限公司,辽宁沈阳110141
- 折叠
摘要
Abstract
A method including liquid-liquid extraction and gas chromatography was developed for determination of aniline, N,N-dimethylaniline, o-toluidine, m-toluidine and o-chloroaniline in sewage water. The effects of chromatographic conditions, pH and salinity of the sewage water samples on the determination were investigated. Aniline and its substituted derivatives were completely separated on an OV-17 capillary column (30 m × 0.32 mm × 0.5 μm) and determined by GC equipped with FID. The results indicated good linear correlations between the peak areas and the mass concentrations of aniline and its substituted derivatives in the linearity range of 0.5-50.0 mg/L. All the correlation coefficients were more than 0.999. The optimal conditions for the liquid-liquid extraction were NaCl dosage 9 g, adjusting sewage water sample pH with NaOH solution(l mol/L) to 11 and extraction with dichloromethane for 3 times. Under the optimal determination conditions, the detection limits were in the range of 0.056-0.093 mg/L, RSD of the reproducibility was 0.8%-4.5%, and the recoveries were in the range of 82%-103%. It is showed that the method is rapid and accurate.关键词
液液萃取/气相色谱法/污水/苯胺/N,N-二甲基苯胺/邻甲苯胺/间甲苯胺/邻氯苯胺Key words
liquid-liquid extraction/ gas chromatography/ sewage water/ aniline/N, N-dimethylaniline/ o-toluidine/ m-toluidine/ o-chloroaniline分类
化学化工引用本文复制引用
王洪明,江丕森,侯晓虹,伦小文,张聪璐,梁宁..气相色谱法测定污水中苯胺类化合物[J].石油化工,2012,41(3):342-346,5.
