Active sampling device for determining pollutants in surface and pore water - The in situ sampler for biphasic water monitoring

Samuel D. Supowit, Isaac B. Roll, Viet D. Dang, Kevin J. Kroll, Nancy D. Denslow, Rolf Halden

Research output: Contribution to journalArticle

6 Citations (Scopus)

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 and sediment transport via in situ solid phase extraction.

Original languageEnglish (US)
Article number21886
JournalScientific Reports
Volume6
DOIs
StatePublished - Feb 24 2016

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Equipment and Supplies
Water
Solid Phase Extraction
Colony Collapse
Limit of Detection
Wetlands
Waste Water
Tandem Mass Spectrometry
Pesticides
Gas Chromatography

ASJC Scopus subject areas

  • General

Cite this

Active sampling device for determining pollutants in surface and pore water - The in situ sampler for biphasic water monitoring. / Supowit, Samuel D.; Roll, Isaac B.; Dang, Viet D.; Kroll, Kevin J.; Denslow, Nancy D.; Halden, Rolf.

In: Scientific Reports, Vol. 6, 21886, 24.02.2016.

Research output: Contribution to journalArticle

Supowit, Samuel D. ; Roll, Isaac B. ; Dang, Viet D. ; Kroll, Kevin J. ; Denslow, Nancy D. ; Halden, Rolf. / Active sampling device for determining pollutants in surface and pore water - The in situ sampler for biphasic water monitoring. In: Scientific Reports. 2016 ; Vol. 6.
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