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Updated: Feb 20, 2026

Characterization and Application of Passive Samplers for Monitoring of Pesticides in Water
Published on: August 3, 2016
Pharmaceuticals and pesticides archived on polar passive sampling devices can be stable for up to 6 years
Jonathan K Challis1, Mark L Hanson2, Charles S Wong1,2,3
1Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada.
Abstract:
In the present study, we report the freezer storage stability of pharmaceuticals and pesticides for the organic-diffusive gradients in thin-films (o-DGT) passive sampler and the polar organic chemical integrative sampler (POCIS). The average change on o-DGT after approximately 18 mo was 9 ± 9% across 30 compounds. For POCIS, the average change after approximately 6 yr was 14 ± 14% for the same compounds. Our data suggest that analytes stored on these samplers are stable and appropriate for archival purposes. Environ Toxicol Chem 2018;37:762-767. © 2017 SETAC.
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