Organic Geochemistry Research Laboratory Photos

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Alex Strahan, KU student, processes water samples for pesticides by automated solid-phase extraction.

Julie Pyle, Kansas University student, enters water-sample data from the Midwest U.S. into the laboratory computer.

Lisa Zimmerman, research associate, uses solid-phase microextraction to analyze taste and odor in water samples.

Alex Strahan, Kansas University student, uses accelerated solvent extraction to remove pesticides from soil for chemical analysis.

Enzyme immunoassay (ELISA) is used for rapid, inexpensive analysis of water samples for herbicides.

Gas chromatography/mass spectrometry measures trace levels of pesticides in water samples.

Ed Lee, analyst, uses the liquid chromatography/mass spectrometer to measure antibiotics in waste water from around the U.S.

Michael Thurman, USGS Research Hydrologist, working in the Organic Geochemistry Research Laboratory, Lawrence, Kansas, which he opened in 1989.

Michael Thurman, USGS Research Hydrologist, working with Alex Strahan, Kansas University student and employ in the Organic Geochemistry Laboratory, Lawrence, Kansas.