引用本文:吴伟,余昂,赵珊珊.固相萃取-气质联用法测定固体废物浸出液中的二硝基苯[J].环境监控与预警,2015,7(5):28-30
WU Wei,YU Ang,ZHAO Shan shan.Determination of Dinitrobenzene in TCLP of Solid Waste by Solid Phase Extraction Coupling with GC/MS[J].Environmental Monitoring and Forewarning,2015,7(5):28-30
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固相萃取-气质联用法测定固体废物浸出液中的二硝基苯
吴伟,余昂,赵珊珊1,2
1.江苏省环境科学研究院,江苏 南京 210036;2.江苏省环境工程重点实验室,江苏 南京 210036
摘要:
建立了一种利用固相萃取法对固体废物浸出液(TCLP)中二硝基苯进行萃取,DB-5石英毛细管柱(30 m×0.25 mm×0.25 μm)进行分离,质谱检测器检测二硝基苯的方法。方法在0.002 0~0.020 0 mg/L之间线性关系良好,二硝基苯三种同分异构体的检出限均为0.5 μg/L,模拟样品加标回收率为93%~96%,RSD≤2%;实际固体废物样品测定的加标回收率为95%~98%。
关键词:  固体废物  浸出毒性试验方法  二硝基苯  固相萃取  气质联用法
DOI:
分类号:O657.63
文献标识码:B
基金项目:国家水体污染控制与治理科技重大专项基金资助项目(2012ZX07301-005);江苏省环境工程重点实验室开放课题基金资助项目(2012)
Determination of Dinitrobenzene in TCLP of Solid Waste by Solid Phase Extraction Coupling with GC/MS
WU Wei,YU Ang,ZHAO Shanshan1,2
1.Jiangsu Provincial Academy of Environmental Science, Nanjing, Jiangsu 210036, China;2. Jiangsu Key Lab of Environmental Engineering, Nanjing, Jiangsu 210036, China
Abstract:
A method was established for the determination of dinitrobenzene in Toxicity Characteristic Leaching Procedure (TCLP) of solid waste. The sample was extracted by SPE, separated by DB 5 quartz capillary column (30 m×0.25 mm×0.25 μm), and detected by mass spectrometer. The relevant analytical parameters were optimized. Good linear relationship was obtained in the range of 0.002 0 mg/L~0.020 0 mg/L. The detection limits of three dinitrobenzene isomers were all 0.5 μg/L, and the recovery rates were between 93%~96% and RSD≤2%. For the determination of solid waste samples, the recovery rates were between 95%-98%.
Key words:  Solid waste  TCLP  Dinitrobenzene  SPE  GC/MS