Rapid screening methods for chemical dispersants in seawater published

Sept. 2, 2010
MILFORD, MA, Sept. 2, 2010 -- The EPA has published two rapid screening methods for chemical dispersants in seawaters that specifically target analysis of three compounds used in the Gulf of Mexico oil spill response...

MILFORD, MA, Sept. 2, 2010 -- The United States Environmental Protection Agency (EPA) has published two rapid screening methods for chemical dispersants in seawaters using Waters® ACQUITY UPLC®/Quattro Premier™ XE (UPLC/MS/MS). These analytical procedures were developed by Dr. Lawrence Zintek, National Organic Methods Development Expert, and Dr. David Schroeder, US EPA Region 5 Chicago Regional Laboratory (CRL) in collaboration with Dr. Johnson Mathew, Region 6 Houston Laboratory.

These two methods specifically target the analysis of dipropylene glycol monobutyl ether (DPGBE), ethylene glycol monobutyl ether (EGBE), and dioctyl sulfosuccinate (DOSS) in seawater; three compounds used in the Gulf of Mexico in response to the oil leak.

"The key to these dispersant methods developed by EPA Region 5 Laboratory is the direct sample injection while meeting the water quality criteria goals," said Joe Romano, Senior Manager of Chemical Analysis for the Waters Division. "While the scientific community is just starting to understand the impact of the oil spill in the Gulf, what is clear is that preparing samples, such as seawater samples, may be the most challenging step in the analytical process. Direct injection of seawater into the UPLC/MS/MS system streamlines sample preparation and ensures analytical consistency from analytical run to analytical run. This rapid low level analysis also saves time and money."

The methods are available from the US EPA Region 5 Chicago Regional Laboratory by contacting Dr. Lawrence Zintek at [email protected].

About Waters Corporation (www.waters.com)
For more than 50 years, Waters Corporation has (NYSE: WAT) created business advantages for laboratory-dependent organizations by delivering practical and sustainable innovation to enable significant advancements in such areas as healthcare delivery, environmental management, food safety, and water quality worldwide. Pioneering a connected portfolio of separations science, laboratory information management, mass spectrometry and thermal analysis, Waters' technology breakthroughs and laboratory solutions provide an enduring platform for customer success. With revenue of $1.5 billion in 2009 and 5,200 employees, Waters is driving scientific discovery and operational excellence for customers worldwide.

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