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United States Department of Agriculture

Agricultural Research Service

Research Project: MANAGING AGRICULTURAL WATER QUALITY IN FIELDS AND WATERSHEDS: NEW PRACTICES AND TECHNOLOGIES Title: Calibration and controlled flume evaluation of polar organic chemical integrative samplers (POCIS) for tylosin

Authors
item Washington, Maurice -
item Soupir, Michelle -
item Moorman, Thomas

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: March 25, 2013
Publication Date: March 25, 2013
Citation: Washington, M., Soupir, M.L., Moorman, T.B. 2013. Calibration and controlled flume evaluation of polar organic chemical integrative samplers (POCIS) for tylosin [abstract]. Available at: http://www.awra.org/meetings/Spring2013/doc/PP/Sess%208%20abs.pdf.

Technical Abstract: In recent years, the occurrence and fate of emerging contaminants such as antibiotics in the environment have become a concern. One of these is tylosin, a macrolide antibiotic that is used extensively in the swine industry as a growth promoter. The monitoring of these emerging contaminants for assessment purposes is pertinent to understanding the scope of this issue. In the past 5 – 10 years, passive sampler technology has been used for water quality monitoring. One of the most commonly used passive samplers is the polar organic chemical integrative sampler (POCIS). POCIS are manufactured to monitor and sample hydrophilic compounds such as macrolide antibiotics. To date, tylosin is not one of the antibiotics that the POCIS has been calibrated to sample. This study consisted of three separate experiments: 1) Small lab scale calibration (4 L); 2) Large lab scale calibration (40 L); and 3) Controlled flow calibration and POCIS evaluation in a recirculating flume. Tylosin A is measured by LC-MS/MS which allows calibration at low concentrations similar to those found in stream water. This evaluation of POCIS sampling of tylosin could provide greater understanding of the POCIS in monitoring tylosin in the aquatic environment.

Last Modified: 10/1/2014
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