Active Sampling Device for Determining Pollutants in Surface and Pore Water - the In Situ Sampler for Biphasic Water Monitoring

Scientific Reports
Samuel D SupowitRolf U Halden

Abstract

We designed and evaluated an active sampling device, using as analytical targets a family of pesticides purported to contribute to honeybee colony collapse disorder. Simultaneous sampling of bulk water and pore water was accomplished using a low-flow, multi-channel pump to deliver water to an array of solid-phase extraction cartridges. Analytes were separated using either liquid or gas chromatography, and analysis was performed using tandem mass spectrometry (MS/MS). Achieved recoveries of fipronil and degradates in water spiked to nominal concentrations of 0.1, 1, and 10 ng/L ranged from 77 ± 12 to 110 ± 18%. Method detection limits (MDLs) were as low as 0.040-0.8 ng/L. Extraction and quantitation of total fiproles at a wastewater-receiving wetland yielded concentrations in surface water and pore water ranging from 9.9 ± 4.6 to 18.1 ± 4.6 ng/L and 9.1 ± 3.0 to 12.6 ± 2.1 ng/L, respectively. Detected concentrations were statistically indistinguishable from those determined by conventional, more laborious techniques (p > 0.2 for the three most abundant fiproles). Aside from offering time-averaged sampling capabilities for two phases simultaneously with picogram-per-liter MDLs, the novel methodology eliminates the need for water ...Continue Reading

References

Jan 1, 1995·Medical Engineering & Physics·E S GenevierP J Steer
May 8, 2001·Environmental Toxicology and Chemistry·K K Ngim, D G Crosby
Aug 15, 2001·Archives of Environmental Contamination and Toxicology·D SchlenkP Bedient
Nov 25, 2003·The Science of the Total Environment·Igor G DubusSabine Beulke
Apr 20, 2004·Environmental Pollution·K C Jones, P de Voogt
May 18, 2006·Environmental Toxicology and Chemistry·Fredrik Reichenberg, Philipp Mayer
Feb 28, 2007·The Science of the Total Environment·Laetitia ComorettoSerge Chiron
Jun 3, 2008·Environmental Toxicology and Chemistry·Gerard CornelissenGijs D Breedveld
Feb 14, 2009·Environmental Toxicology and Chemistry·Kunde LinJay Gan
Nov 18, 2011·Environmental Science & Technology·Seyoum Yami GebremariamDavid R Yonge
Jan 17, 2012·Environmental Science & Technology·J GanJ X Li
Dec 26, 2013·Environmental Science & Technology·Donald P Weston, Michael J Lydy
Sep 1, 2015·The Science of the Total Environment·Karen R Ryberg, Robert J Gilliom

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