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首页> 外文期刊>Journal of Environmental Science and Health >Online in-tube microextractor coupled with UV-Vis spectrophotometer for bisphenol A detection
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Online in-tube microextractor coupled with UV-Vis spectrophotometer for bisphenol A detection

机译：在线管内微量萃取器与UV-Vis分光光度计结合使用以检测双酚A

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摘要

A simple and high extraction efficiency online in-tube microextractor (ITME) was developed for bisphenol A (BPA) detection in water samples. The ITME was fabricated by a stepwise electrodeposition of polyaniline, polyethylene glycol and polydimethylsiloxane composite (CPANI) inside a silico-steel tube. The obtained ITME coupled with UV-Vis detection at 278 nm was investigated. By this method, the extraction and pre-concentration of BPA in water were carried out in a single step. Under optimum conditions, the system provided a linear dynamic range of 0.1 to 100 μM with a limit of detection of 20 nM (S/N ≥3). A single in-tube microextractor had a good stability of more than 60 consecutive injections for 10.0 μM BPA with a relative standard deviation of less than 4%. Moreover, a good tube-to-tube reproducibility and precision were obtained. The system was applied to detect BPA in water samples from six brands of baby bottles and the results showed good agreement with those obtained from the conventional GC-MS method. Acceptable percentage recoveries from the spiked water samples were obtained, ranging from 83-102% for this new method compared with 73-107% for the GC-MS standard method. This new in-tube CPANI microextractor provided an excellent extraction efficiency and a good reproducibility. In addition, it can also be easily applied for the analysis of other polar organic compounds contaminated in water sample.
机译：开发了一种简单且萃取效率高的在线管内微萃取器（ITME），用于检测水样中的双酚A（BPA）。 ITME是通过在硅胶管内逐步电沉积聚苯胺，聚乙二醇和聚二甲基硅氧烷复合材料（CPANI）制成的。研究了获得的ITME与278 nm处的UV-Vis检测。通过这种方法，只需一步即可完成水中BPA的萃取和预浓缩。在最佳条件下，系统可提供0.1至100μM的线性动态范围，检出限为20 nM（S / N≥3）。单个管内微萃取器对于10.0μMBPA具有60次以上连续进样的良好稳定性，相对标准偏差小于4％。而且，获得了良好的管对管再现性和精度。该系统用于检测六个品牌婴儿奶瓶中水样中的双酚A，结果与常规GC-MS方法获得的结果吻合良好。从加标水样中获得的回收率百分比可以接受，这种新方法为83-102％，而GC-MS标准方法为73-107％。这种新型的管内CPANI微萃取器具有出色的萃取效率和良好的重现性。此外，它还可以轻松地用于分析水样中污染的其他极性有机化合物。

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  • 来源
    《Journal of Environmental Science and Health》 |2013年第4期|242-250|共9页
  • 作者

    SUJITTRA POORAHONG; CHONGDEE THAMMAKHET; PANOTE THAVARUNGKUL; PROESPICHAYA KANATHARANA;

  • 作者单位

    Trace Analysis and Biosensor Research Center, Prince of Songkla University, Hat Yai, Songkhla, Thailand,Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand,Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand;

    Trace Analysis and Biosensor Research Center, Prince of Songkla University, Hat Yai, Songkhla, Thailand,Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand,Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand;

    Trace Analysis and Biosensor Research Center, Prince of Songkla University, Hat Yai, Songkhla, Thailand,Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand,Department of Physics, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand;

    Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand,Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand,Trace Analysis and Biosensor Research Center, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand;

  • 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
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  • 关键词

    Bisphenol A; online sample preparation; in-tube microextractor; polyaniline; UV-Vis detection;

    机译：双酚A;在线样品制备;管内微萃取器;聚苯胺紫外可见检测;

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