Initially, POCIS was designed to mimic the respiratory exposure of aquatic organisms to dissolved chemicals. Nowadays they are used either as qualitative tools to determine contaminants present in the environment or as quantitative tools to determine the Time Water Average Concentrations (TWACs). This requires more information and is influenced by environmental parameters.
POCIS are very popular because they are easy to use and require no maintenance and energy during the exposure period.
Several formats are available to adapt sampling to field constraints.
The most popular product is the round POCIS (90mm diameter). However, two other narrow formats (5 cm width) are also available for groundwater monitoring.
Affinisep has selected several combinations of sorbent and membranes to efficiently monitor a broad range of contaminants:
- AFFINIMIP®SPE GLYPHOSATE is a passive sampler designed for the monitoring of glyphosate, AMPA and glufosinate
- AttractSPE®POCIS HLB for the monitoring of pesticides and drug residues
- AttractSPE®POCIS Pesticides for the monitoring of pesticides
- AttractSPE®POCIS EDC+ for the monitoring of endocrine disruptors
- AttractSPE®POCIS PFAS for the monitoring of perfluorinated compounds
POCIS with a PRC
In addition, AttractSPE®POCIS HLB and AttractSPE®POCIS pesticides can be supplied with a performance reference compounds (PRC). The dissipation of the PRC during the exposure period can be used to correct the evaluated concentration. For these POCIS, desisopropyl-atrazine-d5 (DIA-d5) can be used as PRC.
AttractSPE® POCIS PFAS
POCIS for the monitoring of poly- and perfluoroalkyl substances (PFASs) in water
POCIS contains HLB for the monitoring of pharmaceutical drug residues and pesticides.
POCIS for the monitoring of pesticides compounds (For Glyphosate, please use AFFINIMIP POCIS GLYPHOSATE).
AttractSPE® POCIS EDC+
POCIS for the monitoring of a broad range of endocrine disruptors.
POCIS for the monitoring of Glyphosate and AMPA.