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Experimental Estimation of 44 Pharmaceutical Polar Organic Chemical Integrative Sampler Sampling Rates in an Artificial River under Various Flow Conditions
Author(s) -
Guibal R.,
Lissalde S.,
Guibaud G.
Publication year - 2020
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.4717
Subject(s) - sampling (signal processing) , partition coefficient , calibration , polar , volumetric flow rate , chemistry , analytical chemistry (journal) , environmental science , environmental chemistry , surface water , water flow , tap water , chromatography , soil science , environmental engineering , mathematics , statistics , thermodynamics , physics , filter (signal processing) , astronomy , computer science , computer vision
The present study pertains to a polar organic chemical integrative sampler (POCIS) laboratory calibration to estimate the sampling rates for 44 pharmaceuticals featuring a wide range of polarity (–0.6 < octanol/water partition coefficient [log K OW ] < 5.4). The calibration was performed at 16.0 ± 1.5 °C for 4 water flow velocities (0, 2–3, 6–7, and 20 cm/s) in both a tank (for calibration at 0 cm/s) and a laboratory‐scale artificial river filled with 200 and 500 L of tap water spiked with 0.3 µg/L of each compound, respectively. Twelve new sampling rates and 26 sampling rates already available in the literature were determined, whereas the sampling rates for 6 pharmaceuticals could not be determined due to nonlinearity or poor accumulation in POCIS. An increase in the sampling rate value with flow velocity was observed, which is consistent with a decrease in the effective thickness of the water boundary layer at the POCIS membrane surface. Environ Toxicol Chem 2020;39:1186–1195. © 2020 SETAC