Organic Geochemistry Research Lab
(OGRL)
The U.S. Geological Survey (USGS) Kansas Water Science Center Organic Geochemistry Research Laboratory (OGRL) was established in 1987. The OGRL is a multidisciplinary program that contributes knowledge about the distribution, fate, transport, and effects of new and understudied organic compounds that may affect human health and (or) ecosystems.
The OGRL consists of two units: Algal and Other Environmental Toxins (AET) Unit and Environmental Organic Chemistry (EOC) Unit. The OGRL does independent and collaborative research, develops robust analytical methods, and provides fee-for-service analytical laboratory analyses.
Algal and Other Environmental Toxins Unit
The Algal and Environmental Toxins Unit has the capability to detect toxins that could be harmful to human health and the environment.

Enzyme-linked immunosorbent assay (ELISA) techniques in low and high salinity waters for the following toxins: anatoxin-a, cylindrospermopsin, microcystin, and saxitoxin.
Liquid chromatography/high resolution mass spectrometry for the following:
Total and dissolved freshwater toxins (includes 13 analytes)
Total and dissolved marine toxins (includes 9 analytes)
Total and dissolved freshwater and marine toxins (includes 21 analytes)
- Nontarget screening
Environmental Organic Chemistry Unit
Using state-of-the-art instrumentation and techniques, the Environmental Organic Chemistry Unit analyzes samples from various matrices to determine the occurrence of organic contaminants in the environment.

Sample preparation, including filtering, accelerated solvent extractions, bioassay extractions, and solid-phase extractions.
Liquid chromatography/tandem mass spectrometry methods in water and solids (soil, sediment, and biosolids) for the following:
Artificial sweeteners (includes 5 analytes)
Atrazine
Glyphosate, aminomethylphosphonic acid (AMPA), and glufosinate
Four class antibiotic method (includes 33 analytes)
Pharmaceutical method (includes 84 compounds)
Hormones: androgens, conjugates, and estrogens (includes 32 analytes)
Hormones: progestins (includes 11 analytes)
Hormones: phytoestrogens (includes 6 analytes)
Mycotoxins (includes 8 analytes)
- Tire leachate: 6 PPD-quinone
FY25 Sample Collection and Processing Directions
Below are other science projects associated with this project.
OGRL Algal Toxins Methods of Analysis
Below are multimedia items associated with this project.
Below are publications associated with this project.
Effects of ionic strength, temperature, and pH on degradation of selected antibiotics
A national reconnaissance of pharmaceuticals and other organic wastewater contaminants in the United States - I) Groundwater
Concentrations of selected pharmaceuticals and antibiotics in south-central Pennsylvania waters, March through September 2006
Concentrations of glyphosate, its degradation product, aminomethylphosphonic acid, and glufosinate in ground- and surface-water, rainfall, and soil samples collected in the United States, 2001-06
Methods of analysis by the U.S. Geological Survey Organic Geochemistry Research Group--Determination of dissolved isoxaflutole and its sequential degradation products, diketonitrile and benzoic acid, in water using solid-phase extraction and liquid chroma
Evaluation of tandem offline and online solid-phase extraction with liquid chromatography/electrospray ionization-mass spectrometry for the analysis of antibiotics in ambient water and comparision to an independent method
Trace analysis of trimethoprim and sulfonamide, macrolide, quinolone, and tetracycline antibiotics in chlorinated drinking water using liquid chromatography electrospray tandem mass spectrometry
Comparison of fate and transport of isoxaflutole to atrazine and metolachlor in 10 Iowa rivers
Persistence of pharmaceuticals and other organic compounds in chlorinated drinking water as a function of time
Efficiency of conventional drinking-water-treatment processes in removal of pharmaceuticals and other organic compounds
Evaluation of emerging contaminants of concern at the South District Wastewater Treatment Plant based on seasonal sampling events, Miami-Dade County, Florida, 2004
Occurrence of isoxaflutole, acetamide, and triazine herbicides and their degradation products in 10 Iowa rivers draining to the Mississippi and Missouri Rivers, 2004
The U.S. Geological Survey (USGS) Kansas Water Science Center Organic Geochemistry Research Laboratory (OGRL) was established in 1987. The OGRL is a multidisciplinary program that contributes knowledge about the distribution, fate, transport, and effects of new and understudied organic compounds that may affect human health and (or) ecosystems.
The OGRL consists of two units: Algal and Other Environmental Toxins (AET) Unit and Environmental Organic Chemistry (EOC) Unit. The OGRL does independent and collaborative research, develops robust analytical methods, and provides fee-for-service analytical laboratory analyses.
Algal and Other Environmental Toxins Unit
The Algal and Environmental Toxins Unit has the capability to detect toxins that could be harmful to human health and the environment.

Enzyme-linked immunosorbent assay (ELISA) techniques in low and high salinity waters for the following toxins: anatoxin-a, cylindrospermopsin, microcystin, and saxitoxin.
Liquid chromatography/high resolution mass spectrometry for the following:
Total and dissolved freshwater toxins (includes 13 analytes)
Total and dissolved marine toxins (includes 9 analytes)
Total and dissolved freshwater and marine toxins (includes 21 analytes)
- Nontarget screening
Environmental Organic Chemistry Unit
Using state-of-the-art instrumentation and techniques, the Environmental Organic Chemistry Unit analyzes samples from various matrices to determine the occurrence of organic contaminants in the environment.

Sample preparation, including filtering, accelerated solvent extractions, bioassay extractions, and solid-phase extractions.
Liquid chromatography/tandem mass spectrometry methods in water and solids (soil, sediment, and biosolids) for the following:
Artificial sweeteners (includes 5 analytes)
Atrazine
Glyphosate, aminomethylphosphonic acid (AMPA), and glufosinate
Four class antibiotic method (includes 33 analytes)
Pharmaceutical method (includes 84 compounds)
Hormones: androgens, conjugates, and estrogens (includes 32 analytes)
Hormones: progestins (includes 11 analytes)
Hormones: phytoestrogens (includes 6 analytes)
Mycotoxins (includes 8 analytes)
- Tire leachate: 6 PPD-quinone
FY25 Sample Collection and Processing Directions
Below are other science projects associated with this project.
OGRL Algal Toxins Methods of Analysis
Below are multimedia items associated with this project.
Below are publications associated with this project.