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水泵橡胶密封件中PAHs的提取

Extraction of PAHs in pump rubber seals
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摘要 分别采用索氏萃取和超声萃取两种样品前处理方法,将水泵橡胶密封件介质机体中多环芳烃(Polycyclic Aromatic Hydrocarbons,简称PAHs)和其他干扰物质分离开;利用气相色谱-质谱联用仪对萃取液中的PAHs进行定量分析,研究了不同萃取方法对水泵橡胶密封件中多环芳烃种类、回收率和分布的影响,发现两种萃取方法所得的PAHs种类是相同的,但采用索氏方法萃取出的PAHs总量、回收率以及极性和溶解度不同的PAHs质量浓度均高于超声萃取法.试验对比结果表明:在GC-MS分析条件下,索氏萃取法在提取水泵橡胶密封件中PAHs的能力上优于超声萃取法;超声萃取在高沸点PAHs的提取方面具有优势.因此,需根据被测目标PAHs的性质及样品情况的不同选择不同的样品前处理方法. The samples collected from the pump rubber seals were extracted by Soxhlet Extraction Method and Ultrasonic Extraction Method respectively. PAHs were separated from the impurities in the pump rub- ber seals. The extracted liquids were determined by gas chromatography-mass spectrometry. The impact on the concentration, recovery and distribution of PAHs extracted by different extracting methods from pump rubber seals were studied. It was found that the PAHs categories were the same by the two extraction methods, but the Soxhlet Extraction was better than the Ultrasonic Extraction in PAHs quantities, PAHs recoveries and PAHs mass numbers in different polarity and solubility. The results indicated that the ability of Soxhlet extraction method was better than that of ultrasonic extraction method under the GC -MS analytic conditions. However, the Ultrasonic Extraction had special advantage in extracting the high boiling point compounds. Therefore, the sample pretreatment techniques were determined by the compounds character and the different samples complexion.
作者 王洋 王彩虹
出处 《排灌机械》 EI 2009年第4期265-268,共4页 Drainage and Irrigation Machinery
基金 国家863计划项目(2006AA100211)
关键词 水泵 橡胶密封件 多环芳烃 索氏萃取 超声萃取 影响 pump rubber seals PAHs Soxhlet Extraction Method Ultrasonic Extraction Method impaction
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参考文献7

  • 1Menzie C A, Potocki B B, Santodonato J. Exposure to carcinogenic PAHs in the environment [ J ]. Environ Sc Technol, 1992,26 (7) : 1278 - 1284.
  • 2US EPA. Code of federal regulation, title 40, part 61, subpart A [ S ]. Washington, DC : Environmental Protection Agency, 1997.
  • 3谢忠麟.应对环保的橡胶制品材料[J].中国橡胶,2006,22(16):4-9. 被引量:10
  • 4US EPA. Method 3540C Soxhlet Extraction [ S ]. Washington, DC : Environmental Protection Agency, 1996 : 1 -8.
  • 5Buco S, Moragues M, Doumenq P, et al. Analysis of polycyclic aromatic hydrocarbons in contaminated soil by curie point pyrolysis coupled to gas chromatography-mass spectrometry, an ahernative to conventional methods [J]. Journal of Chromatography A, 2004, 1026:223 - 229.
  • 6魏恩棋.超声波萃取-GC/MS测定大气颗粒物中的多环芳烃[J].城市环境与城市生态,2002,15(4):44-45. 被引量:18
  • 7Capelo J L,Galesio M M,Felisberto G M, et al. Microfocused ultrasonic solid-liquid extraction (μFUSLE) combined with HPLC and fluorescence detection for PAHs determination in sediments: optimization and linking with the analytical minimalism concept [ J ]. Ta- lanta,2005,66 : 1272 - 1280.

二级参考文献3

  • 1刘瑞莲,马西林,丁中华,赵振华,全文熠,田德海.大同市空气中多环芳烃的分析[J].环境科学进展,1996,4(4):54-59. 被引量:4
  • 2孙韧.天津市大气颗粒物上多环芳烃的源解析,硕士学位论文[M].南开大学环境科学系,1997..
  • 3王敢峰.毛细管气相色谱法测定飘尘中多环芳烃[J].卫生研究,1984,13(2):13-17.

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