Calibration of the Chemcatcher® passive sampler for monitoring selected polar and semi-polar pesticides in surface water

被引：65

作者：

Gunold, Roman ^{[1
,2
]}

Schaefer, Ralf Bernhard ^{[1
,4
]}

Paschke, Albrecht ^{[3
]}

Schueuermann, Gerrit ^{[3
,5
]}

Liess, Matthias ^{[1
]}

机构：

[1] UFZ Helmholtz Ctr Environm Res, Dept Syst Ecotoxicol, D-04318 Leipzig, Germany

[2] Ernst Moritz Arndt Univ Greifswald, Res Lab Analyt & Environm Chem, Inst Biochem, D-17487 Greifswald, Germany

[3] UFZ Helmholtz Ctr Environm Res, Dept Ecol Chem, D-04318 Leipzig, Germany

[4] Univ Luneburg, Inst Ecol & Environm Chem, D-21335 Luneburg, Germany

[5] Tech Univ Bergakad Freiberg, Inst Organ Chem, D-09596 Freiberg, Germany

来源：

ENVIRONMENTAL POLLUTION | 2008年 / 155卷 / 01期

关键词：

pesticides; passive sampling; water; bioavailability; Chemcatcher (R);

D O I：

10.1016/j.envpol.2007.10.037

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Passive sampling is a powerful method for Continuous Pollution monitoring, but calibration experiments are still needed to generate sampling rates in order to estimate water concentrations for polar compounds. We calibrated the Chemcatcher(R) device with all uncovered SDB-XC Empore disk as receiving phase for 12 polar and semi-polar pesticides in aquatic environments in flow-through tank experiments at two water flow velocities (0.135 m/s and 0.4 m/s). In the 14-day period Of exposure the uptake of test substances in the sampler remained linear, and all derived sampling rates R, were in the range of 0.1 to 0.5 L/day. By additionally monitoring the release of two preloaded polar pesticides from the SDB-XC disks over time, very high variation in release kinetics was found, which calls into question the applicability of performance reference compounds. Our study expands the applicability of the Chemcatcher(R) for monitoring trace concentrations of pesticides with frequent occurrence in water. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：52 / 60

页数：9

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