摘要
建立了以环己烷为萃取剂、气相色谱法(氢火焰离子化检测器,FID)测定水质样品中可萃取性石油烃(C_(10)～C_(40))的分析方法。以正构烷烃混合标准溶液为定性和定量校准标准,以色谱峰面积总和与混合标准溶液总浓度建立校准曲线进行外标法定量。方法检出限为0.01 mg/L,经验证方法精密度和准确度良好。同时,分别以气相色谱法和红外光度法测定了地表水、污水处理厂出水、海水和化工废水等实际样品,对比实验结果表明,在可萃取性石油烃C_(10)～C_(40)的碳数范围内,气相色谱法的测试结果与红外光度法无明显差异,有较好的可比性。
A method of liquid-liquid extraction and gas chromatography （flame ionization detector,FID） analysis was developed for extractable petroleum hydrocarbons C10-C40 in water.N-alkanes were used as qualitative and quantitative standards and the standard curve was established between total peak area and total concentration for external standard quantification.The detection limit of petroleum C10-C40 was 0.01 mg/L.Precision and accuracy of the method were both satisfying.Analysis results were compared between gas chromatography and infrared spectrophotometry when determining petroleum in actual samples of surface water,effluent of municipal wastewater treatment plant,seawater and chemical industry wastewater.It was found that there was no significant difference between the results of EPH C10-C40 analyzed by GC-FID and infrared spectrophotometry.Results of two methods had good comparability
作者
殷惠民
董亮
李玲玲
钮珊
张辉
刘金林
YIN Huimin1 , DONG Liang1 , LI Lingling2, NIU Shan1,3, ZHANG Hui1 , LIU Jinlin1(1. State Environmental Protection Key Laboratory of Dioxin Pollution Control, National Research Center for Environmental Analysis and Measurement, Beijing 100029, China ;2. Environmental Development Centre of Ministry of Environmental Protection, Beijing 100029 ,China ;3. Beijing University of Chemical and Technology, Beijing 100029, Chin)
出处
《中国环境监测》
CAS
CSCD
北大核心
2018年第2期83-88,共6页
Environmental Monitoring in China
基金
国家环境保护标准项目(2014-37)
关键词
石油烃
气相色谱法
液液萃取
petroleum hydrocarbons
GC-FID
liquid-liquid extraction
