焦化废水多环芳烃微萃取及高效色谱分析方法  

Micro-extraction and High Performance Chromatographic Analysis of Polycyclic Aromatic Hydrocarbon in Coking Waste Water

作　　者：徐明明 高尚 赵颖 Xu Mingming;Gao Shang;Zhao Ying

机构地区：[1]辽宁北方环境检测技术有限公司,辽宁沈阳110100

出　　处：《一重技术》2024年第5期34-37,74,共5页CFHI Technology

摘　　要：建立测定焦化废水中16种多环芳烃分散液相微萃取-高效液相色谱法。确定最佳色谱条件,对萃取剂、分散剂的种类及比例、萃取时间、加盐量、废水pH等条件进行优化。在最佳实验条件下,建立各组分的工作曲线,线性相关系数均达到0.999,线性范围0.1~10.0μg/L,检出限0.02~0.03μg/L,测定下限0.08~0.12μg/L,样品加标平均回收率96.3%~106%,相对标准偏差1.3%~2.9%。This paper establishes a method of dispersive liquid micro-extraction and high performance liquid chromatography to determine the 16 kinds of polycyclic aromatic hydrocarbons in the coking waste water.The optimal chromatographic condition is determined and the types and proportions of extractants and dispersants,time of extraction,salt addition and pH of waste water are optimized.Operation curves of each composition is established under the optimal experimental condition,with an average linear correlation coefficients of up to 0.999,linear range of 0.1~10.0μg/L,detection limit of 0.02~0.03μg/L,lower limit of 0.08~0.12μg/L,average sample adding standard recovery of 96.3%~106%,and relative standard deviation of 1.3%~2.9%.

关 键 词：焦化废水 多环芳烃 分散液相微萃取 高效液相色谱法 

分 类 号：X784[环境科学与工程—环境工程] O657[理学—分析化学]