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Chemical analysis
Chemical techniques used to identify the composition of substances.
Subtopics:
DNA sequencing (10 items)
Atomic absorption analysis (3 items)
Atomic emission spectroscopy (4 items)
Chromatography (3 items)
Electrophoresis (3 items)
Mass spectroscopy (7 items)
Neutron activation analysis (2 items)
Particle-beam spectroscopy (1 items)
Polymerase chain reaction (4 items)
X-ray diffraction (1 items)

Sediment geochemistry (5 items)
Related topics:


Results 31 - 40 of 62 listed by similarity [list alphabetically]
Genetics and genomics research [More info]
Highlights research studies involving genetics and genomics, includes a glossary of terms on the subject, a directory of scientists involved in this type of work, and description of research facilities through which USGS carries out genetic studies
Genetics and molecular tools [More info]
Describes the value of molecular biology genetic tools in enhancing the delineation of the genetic diversity and the effects of environmental degradation on living species. Links to research, which differentiated two species of sage-grouse.
Geological Survey TRIGA Reactor (GSTR) Services [More info]
Services available at the Geological Survey TRIGA Reactor (GSTR) site in Denver with information on irradiation, neutron activation analysis, fission track radiography, and geochronology and tours of the facility.
Groundwater quality in the Coastal Los Angeles Basin, California [More info]
The occurrence of solvents in the groundwater is not correlated with current overlying land use and human activities. Rather, the solvents are from legacy industrial uses, and it has taken decades for the groundwater to move to where it is now pumped.
Groundwater quality in the San Diego Drainages Hydrogeologic Province, California [More info]
Vanadium and boron were detected at high and moderate concentrations in this area. High concentrations for these constituents were detected almost exclusively in samples collected in the Temecula Valley study area.
Identifying sources of fecal coliform bacteria in selected streams on Virginia's Total Maximum Daily Loads (TMDL) priority list [More info]
Describes project to identify sources of fecal coliform bacteria by ribotyping to develop the use of Maximum Daily Load (TMDL) values for contaminated stream segments in Virginia.
PDF Investigating atmospheric mercury with the U.S. Geological Survey mobile mercury laboratory [More info]
Explains sources of mercury in the air, ways in which mercury is concentrated in animals, and describes how we measure deposition of atmospheric mercury, with summaries of observations.
Laboratory manual for x-ray powder diffraction [More info]
Report presents an abridged guide for laboratory technicians and students using X-ray powder diffraction methodology to study crystalline structure and to determine the mineralogy of finer grained sediments, especially clays.
Liquid Chromatography/Mass Spectrometry (LC/MS) [More info]
Description of technique and equipment for high-performance liquid chromatography (HPLC) used to identify organic compounds in chemical analysis.
PDF Molecular genetics at the Fort Collins Science Center [More info]
Working with our partners, we design and implement studies that provide the genetic information needed to address a variety of issues and problems.
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