Abstract
We report the freezer storage stability of pharmaceuticals and pesticides for the organic-diffusive gradients in thin-films passive sampler (o-DGT) and the polar organic chemical integrative sampler (POCIS). The average change on o-DGT after ≈18 months was 9±9% across 30 compounds. For POCIS after ≈6 years the average change was 14±14% for the same compounds. Our data suggest that analytes stored on these samplers are stable and appropriate for archival purposes.
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