Determination of Trace Amounts of Phenol Compounds in Source Water by Solid Phase Membrane Extraction/Gas Chromatography-Mass Spectrometry
  
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DOI:10.3969/j.issn.1004-4957.年份.月份
KeyWord:solid phase membrane extraction  gas chromatography-mass spectrometry(GC-MS)  phenol compound  trace amounts
  
AuthorInstitution
JIN Duo,MAI Jin-huan,PENG Xu-hui,LUO Li-chun,GUAN Shu-xia,ZHAO Zhi-wei,SUN Tian-yi,LI Jun-min 1.瀚蓝环境股份有限公司广东省城市水循环与水质安全保障技术企业重点实验室(产学研培育基地);2.哈尔滨工业大学市政环境工程学院城市水资源与水环境国家重点实验室
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Abstract:
      A solid phase membrane extraction with gas chromatography-mass spectrometric(GC-MS) method was established for the simultaneous determination of various trace amounts of phenol compounds.The solid phase membrane extraction technology was developed to extract trace amounts of phenol compounds in raw water.Some factors influencing the extraction efficiency of solid phase membrane,including type of eluent,elution volume,initial pH and elution rate were optimized.The separation was performed on a DB-5MS column.Gas chromatography-mass spectrometry(GC-MS) was used to quantitatively analyze the target compounds.The experimental results indicated that with the initial pH value of 2.0 and the elution rate of 1 mL/min,selecting 10 mL dichloromethane-ethyl acetate(1∶1) as extraction eluent,the average recoveries could reach to 82.3%-97.1%.In the optimal conditions,the calibration curves were linear between peak areas and mass concentrations of phenol compounds in the range of 1- 800 μg/L,with correlation coefficients(r2) more than 0.996.The limits of detection(MLD) of phenol compounds were not more than 0.017 μg/L.The precision of the method is high,with relative standard deviations(RSD,n=8) of 1.6%-4.3%.The method was successfully applied in the analysis of trace phenol compounds in water samples collected from the Beijiang River,China.With the advantages of short extraction time,sensitivity,accurancy and simplicity,the method could meet the requirements for the detection of trace phenol compounds in raw water and could significantly improve the efficiency in the analysis of phenol compounds.
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