Pace Logo

Pace Analytical Provides Testing Support for University of Minnesota Study Linking Use of an Antibacterial Agent in Soap to Contaminants in Freshwater Lakes

Chuck Sueper leads Pace’s HRMS group in the analyses of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs).

Minneapolis, MN, January 25, 2013 (Pace Analytical Services, Inc.) Pace Analytical, an industry-leading provider of environmental testing services, provides analytical services to support a recently published University of Minnesota study. The findings indicate a direct link between an increase in levels of triclosan—a common antibacterial agent— and an increase in levels of selected PCDD isomers. These results were based on the analytical results from sediment core samples taken from several Minnesota lakes.

Chuck Sueper, HRMS Technical Director at Pace, aided the study through consulting on the analytical approach, setting up the expanded analytical method, coordinating the analyses, and validating and reporting the results.

Pace Analytical has been involved with this research for several years. For the initial study, Pace extracted samples for triclosan and its derivatives and for PCDDs and PCDFs that form when triclosan is exposed to sunlight in the presence of chlorine. The triclosan / triclosan derivative extracts were provided to the University of Minnesota for analysis, while Pace performed the analyses for PCDDs and PCDFs.

The current study has been in process for the last two years. For this study, Pace extracted and analyzed for PCDDs and PCDFs. The scope was increased, so those same extracts were also tested for selected tri- and tetra-brominated dibenzo-p-dioxins (TBDDs).

Dioxin and furan testing

Extensive research has concluded that exposure to dioxins and furans can result in biochemical and biological effects in animals and humans. Since these ubiquitous compounds accumulate in biological tissues, dioxins and furans have been in the environmental spotlight for several decades and have more recently fallen under the scrutiny of the global food community.

The Pace Analytical Services Dioxin Laboratory in Minneapolis, Minnesota, is at the forefront of dioxin / furan testing, having served the evolving global dioxin testing market for many years. The highly experienced Pace Analytical scientific staff performs dioxin / furan testing in virtually any matrix, utilizing the latest instrumentation and following USEPA methodologies.

Read the University of Minnesota press release here:

To read the full research paper, visit the Environmental Science and Technology website.

Read about the University of Minnesota study in the news:

Star Tribune:

Pioneer Press:

Pace Analytical Services, Inc., is the second largest environmental testing laboratory company in the United States, operating a nationwide network of 20 environmental laboratories and 14 service centers with a list of certifications and accreditations that covers the nation. For more than 34 years, Pace has provided analytical support to major oil, chemical, transportation, mining and manufacturing companies and prides itself in offering clients—both on a national and local level—with exceptional service, legally defensible data and convenient online data management.

Visit us at