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首页> 外文期刊>Environmental Science & Technology >Quaternary Triphenylphosphonium Compounds: A New Class of Environmental Pollutants
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Quaternary Triphenylphosphonium Compounds: A New Class of Environmental Pollutants

机译：季三苯基phosph化合物：一类新的环境污染物

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摘要

A nontarget screening using high-resolution mass spectrometry (HRMS) was established to identify industrial emerging contaminants in the Rhine River. With this approach, quaternary triphenylphosphonium compounds (R-Ph_3P~+) were identified as new emerging contaminants in the aquatic environment The suggested chemical structures were elucidated by MS fragmentation and chemical databank searches and eventually confirmed via authentic standards. R-Ph_3P~+ are used worldwide by the chemical industry to synthesize alkenes via the Wittig reaction. In total, five compounds [R = butyl (Bu), R = ethyl (Et), R = methoxymethvl (MeOMe), R = methyl (Me), and R = phenyl (Ph)] were found in German rivers and streams. R-Ph_3P~+ were detected only in those rivers and streams that received an appreciable portion of wastewater from the chemical industry. Up to 2.5 μg/L Et-Ph_3P~+ was quantified in a small stream from the Hessian Ried, and in the Rhine, up to 0.56 μg/L Me-Ph_3P~+ was detected. R-Ph_3P~+ were also identified in suspended particulate matter and sediments in the Rhine catchment, with MeOMe-Ph_3P~+ concentrations of up to 0.75 mg/kg and up to 0.21 mg/kg, respectively. Because of the lack of ecotoxicological studies, the environmental risks caused by R-Ph_3P~+ can be assessed for neither pelagic nor benthic organisms.
机译：建立了使用高分辨率质谱（HRMS）进行的非目标筛选，以识别莱茵河中正在出现的工业污染物。通过这种方法，季三苯基phosph化合物（R-Ph_3P〜+）被鉴定为水生环境中的新出现污染物。建议的化学结构通过MS裂解和化学数据库检索得以阐明，并最终通过可靠的标准得到证实。 R-Ph_3P〜+在全世界范围内被化学工业用来通过Wittig反应合成烯烃。在德国的河流中，总共发现了五种化合物[R =丁基（Bu），R =乙基（Et），R =甲氧基甲基（MeOMe），R =甲基（Me）和R =苯基（Ph）]。 R-Ph_3P〜+仅在从化工行业中接收到相当一部分废水的河流和溪流中检测到。在来自黑森州里德（Hessian Ried）的小溪中，定量分析了高达2.5μg/ L的Et-Ph_3P〜+，而在莱茵河中，检测到了高达0.56μg/ L的Me-Ph_3P〜+。在莱茵河流域的悬浮颗粒物和沉积物中还发现了R-Ph_3P〜+，其MeOMe-Ph_3P〜+的浓度分别高达0.75 mg / kg和0.21 mg / kg。由于缺乏生态毒理学研究，因此无论是浮游生物还是底栖生物，都无法评估R-Ph_3P〜+引起的环境风险。

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  • 来源
    《Environmental Science & Technology》 |2015年第24期|14282-14291|共10页
  • 作者

    Michael P. Schluesener; Uwe Kunkel; Thomas A. Ternes;

  • 作者单位

    Federal Institute of Hydrology, Department of Aquatic Chemistry, 56068 Koblenz, Germany;

    Federal Institute of Hydrology, Department of Aquatic Chemistry, 56068 Koblenz, Germany;

    Federal Institute of Hydrology, Department of Aquatic Chemistry, 56068 Koblenz, Germany;

  • 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);
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