Unified Interior Regions

Region 3: Great Lakes

Great Lakes Restoration Initiative

Great Lakes Restoration Initiative

For more information on the Great Lakes and work being done, check out the Great Lakes Restoration Initiative website here! 


USGS Science Centers in the Great Lakes Region

For more information on what each center is doing in the Great Lakes, please follow the links below! 

Great Lakes Science Center

Ohio-Kentucky-Indiana Water Science Center

Upper Midwest Water Science Center

Upper Midwest Environmental Sciences Center

National Wildlife Health Center

Regions L2 Landing Page Tabs

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June 1, 2021

MeHg in solids by distillation, isotope dilution, Brooks-Rand ICPMS

Analysis of Methylmercury in Solids by Distillation, Gas Chromatography Separation, and Speciated Isotope Dilution Mass Spectrometry.

The following standard operating procedure (SOP) is used by the U.S. Geological Survey’s Mercury Research Laboratory (MRL), and describes the preparation of soil, sediment, and plant matter by distillation and subsequent analysis