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Development and Calibration of the Polar Organic Chemical Integrative Sampler (POCIS) for Neonicotinoid Pesticides.
Environmental Toxicology and Chemistry ( IF 4.1 ) Pub Date : 2020-04-29 , DOI: 10.1002/etc.4729
Kazushi Noro 1 , Satoshi Endo 2, 3 , Yohei Shikano 3 , Arisa Banno 1 , Yoshinori Yabuki 1
Affiliation  

Neonicotinoid pesticides are highly hydrophilic systemic insecticides that have been extensively used worldwide. To evaluate their environmental risks, the concentrations of these pesticides in the aquatic environment must be monitored. Although the polar organic chemical integrative sampler (POCIS) has proved to be a suitable passive sampler for many highly hydrophilic compounds, Oasis HLB (Waters) POCIS has shown limitations for the monitoring of neonicotinoid pesticides, such as short linear uptake ranges. In the present study we optimized POCIS for neonicotinoid pesticides by selecting suitable adsorbents and filters. The ENVI‐Carb (Supelco) nonporous carbon‐based adsorbent demonstrated a good balance between strong sorption and high recovery. Static renewal experiments showed that the our POCIS device using ENVI‐Carb with a polyethersulfone membrane filter had a 3 d (dinotefuran) to 28 d (clothianidin, imidacloprid, acetamiprid, and thiacloprid) linear range, which is longer than that of HLB POCIS (≤1 [dinotefuran] to 14 d). The POCIS using ENVI‐Carb with a polytetrafluoroethylene membrane had higher sampling rates (0.270 L/d [clothianidin] to 0.686 [imidacloprid] L/d) than those of the HLB POCIS for short‐term deployment. The time‐weighted average concentrations in actual river water measured by the new POCIS were in good agreement with those obtained by repeated grab sampling, within 30%. Moreover, POCIS detected 2 neonicotinoid pesticides that were not detected by grab sampling. Thus, the proposed POCIS is a promising tool for the monitoring of neonicotinoid pesticides. Environ Toxicol Chem 2020;39:1325–1333. © 2020 SETAC

中文翻译:

开发和校准用于新烟碱类农药的极性有机化学综合采样器(POCIS)。

新烟碱类农药是高度亲水的全身性杀虫剂,已在世界范围内广泛使用。为了评估其环境风险,必须监测水生环境中这些农药的浓度。尽管已证明极性有机化学综合采样器(POCIS)是许多高亲水性化合物的合适被动采样器,但Oasis HLB(Waters)POCIS已显示出监测新烟碱类农药的局限性,例如线性吸收范围短。在本研究中,我们通过选择合适的吸附剂和过滤器优化了针对新烟碱类农药的POCIS。ENVI-Carb(Supelco)无孔碳基吸附剂在强吸附和高回收率之间显示出良好的平衡。静态更新实验表明,我们的使用ENVI-Carb和聚醚砜膜过滤器的POCIS设备的线性范围为3 d(二甲呋喃)至28 d(可比丁,吡虫啉,乙酰胺和噻虫啉),其线性范围比HLB POCIS( ≤1[dinotefuran]至14 d)。使用ENVI-Carb和聚四氟乙烯膜的POCIS的短期部署采样率高于HLB POCIS的采样率(0.270 L / d [衣物比抗]至0.686 [imidacloprid] L / d)。新的POCIS测得的实际河水的时间加权平均浓度与通过重复抓取采样获得的时间加权平均浓度吻合良好,在30%以内。此外,POCIS还检测到2种新的烟碱类农药,而这些样品在抓斗采样中没有发现。因此,拟议的POCIS是监测新烟碱农药的有前途的工具。它比HLB POCIS更长(≤1 [dinotefuran]至14 d)。使用ENVI-Carb和聚四氟乙烯膜的POCIS的短期部署采样率高于HLB POCIS的采样率(0.270 L / d [可比丁]至0.686 [imidacloprid] L / d)。新的POCIS测得的实际河水的时间加权平均浓度与通过重复抓取采样获得的时间加权平均浓度吻合良好,在30%以内。此外,POCIS还检测到2种新的烟碱类农药,而这些样品在抓斗采样中没有发现。因此,拟议的POCIS是监测新烟碱农药的有前途的工具。它比HLB POCIS更长(≤1 [dinotefuran]至14 d)。使用ENVI-Carb和聚四氟乙烯膜的POCIS的短期部署采样率高于HLB POCIS的采样率(0.270 L / d [衣物比抗]至0.686 [imidacloprid] L / d)。新的POCIS测得的实际河水的时间加权平均浓度与通过重复抓取采样获得的时间加权平均浓度吻合良好,在30%以内。此外,POCIS还检测到2种新的烟碱类农药,而这些样品在抓斗采样中没有发现。因此,拟议的POCIS是监测新烟碱农药的有前途的工具。短期部署比HLB POCIS高686 [imidacloprid] L / d)。新的POCIS测得的实际河水的时间加权平均浓度与通过重复抓取采样获得的时间加权平均浓度吻合良好,在30%以内。此外,POCIS还检测到2种新的烟碱类农药,而这些样品在抓斗采样中没有发现。因此,拟议的POCIS是监测新烟碱农药的有前途的工具。短期部署比HLB POCIS高686 [imidacloprid] L / d)。新的POCIS测得的实际河水的时间加权平均浓度与通过重复抓取采样获得的时间加权平均浓度吻合良好,在30%以内。此外,POCIS还检测到2种新的烟碱类农药,而这些样品在抓斗采样中没有发现。因此,拟议的POCIS是监测新烟碱农药的有前途的工具。2020年《环境毒理学》; 39:1325–1333。©2020 SETAC
更新日期:2020-06-25
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