Simultaneous determination of eight neonicotinoid insecticides and five metabolites in water samples by liquid chromatography‐tandem mass spectrometry unveils an overlooked risk

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Yan Wu, Li Ma, Zengheng Xiong, Danyu Huang, Mingshan Zhang, Xinrui Yang, Long Cheng, Shuhai He, Huan Lin
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Abstract

Neonicotinoids (NEOs), highly selective toward insect nicotinic acetylcholine receptors, are extensively used due to their effectiveness against pests and relative non‐toxicity to vertebrates. However, their prolonged persistence in soil and water has led to frequent detection in food and environmental samples, posing significant environmental and health concerns. Recent research indicates these pesticides infiltrate aquatic ecosystems, threatening aquatic life and human health. Here, we improved the ultra‐performance liquid chromatography‐mass spectrometry method for detecting NEOs in water samples, increasing its sensitivity to fulfill forthcoming detection needs. This approach enables the simultaneous quantification of eight NEOs and five NEO metabolites in diverse water sources, including tap, surface, groundwater, sewage, and seawater. Our method achieves remarkably low detection limits for direct injection (0.78–1.7 ng/L) and solid‐phase extraction methods (0.13–0.25 ng/L). Critically, our findings reveal that boiling domestic drinking water doesn't degrade NEOs; instead, it increases their concentration due to water evaporation. A 6‐min boiling period can amplify pesticide concentration by 4–5 times, presenting a significant hazard in culinary practices of specific regions where prolonged cooking could lead to alarmingly high levels of these insecticides. This research underscores the importance of monitoring and mitigating NEO contamination in water sources to safeguard environmental and public health.
液相色谱-串联质谱法同时测定水样中的八种新烟碱类杀虫剂和五种代谢物,揭示被忽视的风险
新烟碱类化合物(NEOs)对昆虫的烟碱乙酰胆碱受体具有高度选择性,由于对害虫有效且对脊椎动物相对无毒,因此被广泛使用。然而,它们在土壤和水中的长期持久性导致在食品和环境样本中频繁被检测到,引起了重大的环境和健康问题。最新研究表明,这些农药会渗入水生生态系统,威胁水生生物和人类健康。在此,我们改进了检测水样中近地天体的超高效液相色谱-质谱法,提高了其灵敏度,以满足未来的检测需求。该方法可同时定量检测自来水、地表水、地下水、污水和海水等不同水源中的八种近地天体和五种近地天体代谢物。直接注射法(0.78-1.7 纳克/升)和固相萃取法(0.13-0.25 纳克/升)的检出限都非常低。重要的是,我们的研究结果表明,将生活饮用水煮沸并不会降解近地天体,反而会因水分蒸发而增加近地天体的浓度。6 分钟的沸腾时间可使杀虫剂浓度增加 4-5 倍,这对特定地区的烹饪做法造成了严重危害,因为长时间烹饪会导致这些杀虫剂的浓度达到惊人的高水平。这项研究强调了监测和减轻水源中近地天体污染以保护环境和公众健康的重要性。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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