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Category:	All Categories>methods>laboratory methods>chemical analysis>mass spectroscopy
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Here are some USGS Web pages with more information on mass spectroscopy and Anywhere:

Geochemistry and tracer studies Overview of chemical analyses, tracer studies, gas geochemistry, stable isotopes analyses, organic chemistry, and thermometry capabilities at major USGS laboratories with links to technique, equipment, and contacts for each procedure. (Score: 1.000)

Liquid Chromatography/Mass Spectrometry (LC/MS) Description of technique and equipment for high-performance liquid chromatography (HPLC) used to identify organic compounds in chemical analysis. (Score: 1.000)

Bedrock and soil geochemistry from Voyageurs National Park, Minnesota Maps and text (Word or PDF format) and database (Excel or HTML format) for bedrock, forest floor, and mineral soil sampling in Voyageurs National Park, Minnesota to establish the background and baseline geochemistry and terrestrial mercury sources. (Score: 0.364)

Environmental studies of the World Trade Center area after the September 11, 2001 attack Report describing the results of an interdisciplinary environmental studies of the World Trade Center (WTC) area after the attack on September 11, 2001. The investigations included imaging spectroscopy mapping and laboratory analysis. (Score: 0.224)

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About mass spectroscopy:

Definition: Observation, recording, and measuring of a pattern of relative abundances of ions of different atomic or molecular mass within a sample. [Adapted from Glossary of Geology, 4th ed.]