Chemical Analysis Facility

Agency/Department

FLC Region

Security Lab

No

Address

4555 Overlook Avenue S.W.
Washington

(P)

202-767-3083

Description

FUNCTION: Uses state-of-the-art instrumentation for qualitative and quantitative analysis of organic and inorganic compounds, and biomolecules from gas, liquid, and solid samples. Principal functions of the facility include analyzing samples of environmental importance, ranging from the atmospheres of submarines to polycyclic aromatic hydrocarbons in harbor sediments, and characterizing synthetic products and materials (such as polymers).

DESCRIPTION: The facility includes instrumentation for characterizing many types of environmental and synthetic samples using a variety of analytical techniques. Environmental samples (air, water, and sediment) are prepared by techniques such as solid-phase extraction, liquid extraction, and thermal desorption. Quantitative and qualitative analytical information is provided by gas chromatography (GC), GC/mass spectrometry (MS), liquid chromatography (LC), LC/MS, inductively coupled plasma MS, capillary electrophoresis, excitation/emission fluorimetry, infrared spectroscopy, and UV-visible spectroscopy. Additional detailed information about molecular structures is obtained by nuclear magnetic resonance (NMR) spectrometry, isotope ratio MS, and matrix-assisted laser desorption MS.

INSTRUMENTATION: The facility contains gas chromatographs with flame ionization, thermal conductivity, nitrogen-phosphorous, and mass spectrometer detectors; liquid chromatographs with UV-visible, fluorescence, and mass spectrometer detectors; capillary electrophoresis instruments with UV-visible and conductivity detectors; a thermal desorption-gas chromatograph with tandem infrared and mass spectrometer detectors; an inductively coupled plasma mass spectrometer; a matrix-assisted laser desorption time-of-flight mass spectrometer; Raman, near, and mid-infrared spectrophotometers; UV-visible spectrophotometers; fluorimeters; and NMR spectrometers.

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