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

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet


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 ® device with an 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 s 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 ® for monitoring trace concentrations of pesticides with frequent occurrence in water.

ZeitschriftEnvironmental Pollution
Seiten (von - bis)52-60
Anzahl der Seiten9
PublikationsstatusErschienen - 01.09.2008