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首页> 外文期刊>Environmental Science & Technology >Detection and Discrimination of Phenol and Primary Alcohols in Water Using Electronic Noses
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Detection and Discrimination of Phenol and Primary Alcohols in Water Using Electronic Noses

机译：电子鼻检测和鉴别水中的苯酚和伯醇

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摘要

Electronic nose methodology was used for discriminating between samples of n-primary alcohols and phenol in water.An electronic nose device developed at our laboratory was applied to detect the vapors from the samples.The device consists of 10 nonspecific gas sensors based on tin-dioxide,whose electrical conductivity change when exposed to the vapors.The whole set of responses constitutes a fingerprint associated with the sample for the particular array of sensors.Using this method,we could differentiate among n-primary alcohols,pure phenol,and aqueous dilutions of phenol.Dilutions of primary alcohols and phenol of 1,3,5,and 10% (v/v)were assayed.The fingerprints of the dilutions are similarto that of the respective pure (not diluted)alcohol,but with lower signal intensities.Principal component analysis and cluster analysis were performed in order to explore the feasibility of discriminating among the samples.Dilutions of phenol were successfully discriminated from those of primary alcohols.Discrimination of n-octanol and n-decanol from the other alcohols,including phenol,was also achieved.The results suggest that it is possible to discriminate among dilutions of phenol in water and to give an approximate gross estimation of phenol concentration in water.
机译：使用电子鼻方法区分水中的正伯醇和苯酚样品，使用我们实验室开发的电子鼻装置检测样品中的蒸气，该装置由10个基于二氧化锡的非特异性气体传感器组成，整个响应集合构成了与特定传感器阵列的样品相关的指纹。使用此方法，我们可以区分正伯醇，纯苯酚和水的稀释液。测定了1、3、5和10％（v / v）的伯醇和苯酚的稀释液。稀释液的指纹与相应的纯（未稀释）醇相似，但信号强度较低。进行主成分分析和聚类分析以探讨区分样品的可行性。成功地将苯酚稀释液与初级液相色谱进行了区分还实现了对其他辛醇和正癸醇与其他醇（包括苯酚）的区分。结果表明，可以区分水中的苯酚稀释度，并大致估算水中的苯酚浓度。

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  • 来源
    《Environmental Science & Technology》 |2006年第19期|p.6058-6063|共6页
  • 作者

    VIRGINIA DIZ; MIRYAN CASSANELLO; R.MARTIN NEGRI;

  • 作者单位

    Instituto de Quimica Fisica de Materiales,Ambiente y Energia (INQUIMAE),Departamento de Quimica Inorgdnica,Analitica y Quimica Fisica,Facultad de Ciencias Exactas y Naturales,Universidad de Buenos Aires,Buenos Aires,Argentina,and PINMATE-Departamento;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境化学;
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