ExposMeter - Model EWH-Pharm -Hydrophilic Pharmaceuticals Water Sampler

• A time-integrated monitoring tool for sampling bioavailable contaminants in the aquatic environment
• Detects hotspots, sources, fate and transport of contaminants, as well as their presence and environmental effects
• The POCIS provides a highly reproducible means for monitoring polar organic chemical (POC) levels, and is largely unaffected by many environmental stressors that affect biomonitoring organisms
• The high water solubility of POCs makes their extraction and detection difficult, particularly in episodic events. POCIS provides a reproducible method for concentrating ultra-trace POCs
• The most sensitive technique that could replace bioindicators
• POCIS mimics the respiratory exposure of aquatic organisms
• The POCIS enables in situ concentration of trace organic contaminant mixtures for toxicity assessment and toxicity identification evaluation (TIE) studies.

The POCIS consists of a solid material (sorbent) contained between two microporous membranes. Two configurations of the POCIS are commonly used.  A "Generic" (pesticide) configuration contains a mixture of three sorbent materials and is used for most pesticides, natural and synthetic hormones, many wastewater-related chemicals, and other water-soluble organic chemicals. The "Pharmaceutical" configuration contains a single sorbent designed for sampling most pharmaceutical classes.

Performance:

• Detection level: method-specific
• Selectivity: truly dissolved concentrations of hydrophilic compounds with r\,„ values
• ranging from 0 to 3
• Salinity range: the system is unaffected by salt concentration
• Operating temperature range: 0-50 °C
• Electrical: no power required
• Dimensions of standart POCIS disk:
• diameter: 10 cm
• thickness: 0.6 cm
• opening for sequestration media: 5.4 cm
• amount of sequestering media: 0.200g +/- 0.004g
• total weight of POCIS disk: 175 g