NDLI: Stability of pharmaceuticals and other polar organic compounds stored on polar organic chemical integrative samplers and solid-phase extraction cartridges.

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Stability of pharmaceuticals and other polar organic compounds stored on polar organic chemical integrative samplers and solid-phase extraction cartridges.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Carlson, Jules C. Challis, Jonathan K. Hanson, Mark L. Wong, Charles S.
Description	Country affiliation: Canada Author Affiliation: Carlson JC ( Department of Environmental Studies and Sciences, Richardson College for the Environment, University of Winnipeg, Winnipeg, Manitoba, Canada.)
Abstract	The stability of 24 chemicals, including pharmaceuticals and personal care products, and some agrochemicals on extraction media was evaluated by preloading them onto Oasis hydrophilic lipophilic balanced solid-phase extraction (SPE) cartridges and polar organic chemical integrative samplers (POCIS) followed by storage at -20°C over time. After 20 months, the average loss was 11% on POCIS, with only 2,4-dichlorophenoxyacetic acid, atrazine, chlorpyrifos, and gemfibrozil showing a statistically significant decline compared with initial concentrations. Losses on SPE cartridges were below 19%, with an average loss of 9%. In addition to laboratory spiked samples, multiple POCIS deployed in wastewater-impacted surface waters and SPE extracts of these waters were stored in their original coextracted matrix for nearly two years with minimal observed losses. Errors from typical sampling, handling, and concentration estimates from POCIS sampling rates were typically ± 15 to 30% relative standard deviation, so observed storage losses are minimal for most POCIS applications. While losses during storage on SPE cartridges for 20 months were small but statistically significant for many compounds, addition of labeled internal standards prior to freezing should correct for such losses. Thus, storage of processed water samples for analysis of polar organic pollutants is viable for archival purposes or studies for which samples cannot be analyzed in the short term.
File Format	HTM / HTML
ISSN	07307268
Issue Number	2
Volume Number	32
e-ISSN	15528618
Journal	Environmental Toxicology and Chemistry
Language	English
Publisher	Wiley
Publisher Date	2013-02-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Water Pollutants, Chemical Research Support, Non-u.s. Gov't Environmental Monitoring Models, Chemical Organic Chemicals Discipline Environmental Health Discipline Toxicology Instrumentation Journal Article Chemistry Analysis Solid Phase Extraction Hydrophobic And Hydrophilic Interactions Discipline Chemistry Pharmaceutical Preparations
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis

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Determination of benzodiazepines, related pharmaceuticals and metabolites in water by solid-phase extraction and liquid-chromatography-tandem mass spectrometry.

Calibration and field evaluation of Polar Organic Chemical Integrative Sampler (POCIS) for monitoring pharmaceuticals in hospital wastewater.

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Passive sampling of selected pesticides in aquatic environment using polar organic chemical integrative samplers.

Stability of pharmaceuticals and other polar organic compounds stored on polar organic chemical integrative samplers and solid-phase extraction cartridges.

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