Hochschule Fresenius University of Applied Sciences, Limburger Straße 2, 65510 Idstein, Germany.
Hochschule Fresenius University of Applied Sciences, Limburger Straße 2, 65510 Idstein, Germany.
Water Res. 2016 Sep 15;101:292-299. doi: 10.1016/j.watres.2016.05.082. Epub 2016 Jun 2.
Mobile and persistent organic micropollutants may impact raw and drinking waters and are thus of concern for human health. To identify such possible substances of concern nineteen water samples from five European countries (France, Switzerland, The Netherlands, Spain and Germany) and different compartments of the water cycle (urban effluent, surface water, ground water and drinking water) were enriched with mixed-mode solid phase extraction. Hydrophilic interaction liquid chromatography - high resolution mass spectrometry non-target screening of these samples led to the detection and structural elucidation of seven novel organic micropollutants. One structure could already be confirmed by a reference standard (trifluoromethanesulfonic acid) and six were tentatively identified based on experimental evidence (chloromethanesulfonic acid, dichloromethanesulfonic acid, trichloromethanesulfonic acid, bromomethanesulfonic acid, dibromomethanesulfonic acid and bromochloromethanesulfonic acid). Approximated concentrations for these substances show that trifluoromethanesulfonic acid, a chemical registered under the European Union regulation REACH with a production volume of more than 100 t/a, is able to spread along the water cycle and may be present in concentrations up to the μg/L range. Chlorinated and brominated methanesulfonic acids were predominantly detected together which indicates a common source and first experimental evidence points towards water disinfection as a potential origin. Halogenated methanesulfonic acids were detected in drinking waters and thus may be new substances of concern.
移动性和持久性有机微污染物可能会影响原水和饮用水，因此对人类健康构成关注。为了识别这些可能的关注物质，从五个欧洲国家（法国、瑞士、荷兰、西班牙和德国）和水循环的不同部分（城市污水、地表水、地下水和饮用水）采集了 19 个水样，并用混合模式固相萃取进行了富集。对这些样品进行亲水相互作用液相色谱-高分辨率质谱非靶向筛选，检测到并解析了 7 种新型有机微污染物。一种结构可以通过参考标准（三氟甲磺酸）确认，另外 6 种结构基于实验证据（氯甲烷磺酸、二氯甲烷磺酸、三氯甲烷磺酸、溴甲烷磺酸、二溴甲烷磺酸和溴氯甲烷磺酸）进行了暂定鉴定。这些物质的近似浓度表明，三氟甲磺酸是一种在欧盟 REACH 法规下注册的化学品，其生产量超过 100 吨/年，它能够在水循环中扩散，并可能存在于μg/L 范围内。氯代和溴代甲烷磺酸主要一起被检测到，这表明它们有共同的来源，并且初步实验证据表明，水消毒可能是其潜在的来源。卤代甲烷磺酸被检测到存在于饮用水中，因此可能是新的关注物质。
