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Chemical Analysis Programs & Projects

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Biomagnetic Imaging
Last Updated Date: 10/05/2015

The biomagnetic imaging program develops standards, measurement methods, and new magnetic imaging modalities for biomedical and environmental … more

Measurement Techniques for Membranes and Membrane Proteins
Last Updated Date: 10/05/2015

Synthetic cell membrane constructs allow the simplification and complete control of a more complicated cellular system, as well as the … more

Vacuum-Ultraviolet Optical Properties of Cryogenic Water Ices
Last Updated Date: 09/01/2015

The optical properties of cryogenic water ices in the vacuum-ultraviolet spectral range are studied.

Calibration of the Extreme UV/X-ray Irradiance Sensor (EXIS) for the Geostationary Operations Environment Satellite R-Series Program (GOES-R)
Last Updated Date: 08/25/2015

Calibrations of the The Extreme ultraviolet/X-ray Irradiance Sensor (EXIS), which will be installed on the Geostationary Operations Environment … more

Micro- and Nanoelectromechanical Systems
Last Updated Date: 05/26/2015

Microelectromechanical systems (MEMS) are integrated devices with critical applications in sensing, timing, signal processing, and biomedical … more

Seabird Tissue and Archival Monitoring Project (STAMP)
Last Updated Date: 05/20/2015

In 1999, the U.S. Fish and Wildlife Service Alaska Maritime National Wildlife Refuge (USFWS-AMNWR), the U.S. Geological Survey Biological … more

Isotopes as Environmental Tracers in Archived Biological Specimens
Last Updated Date: 05/20/2015

There is increasing interest in the analytical and environmental communities in using mercury isotopic fingerprinting to identify source patterns … more

Methods and Measurements for Emerging Contaminants
Last Updated Date: 05/20/2015

Regulatory and health agencies within the US, Canada, and countries within Europe are continuously identifying compounds of suspected carcinogenic … more

Optimization of the Standard Addition Method (SAM) Using
Last Updated Date: 05/18/2015

The standard addition method (SAM) was first described by oceanographers in 1955 to overcome matrix effects in the determination of strontium in … more

High-Precision Isotopic Reference Materials
Last Updated Date: 05/18/2015

Recent innovative advances in the design and manufacture of isotope ratio mass spectrometers (IRMS) have revolutionized the study of natural and … more

Mercury Vapor Pressure Correlation
Last Updated Date: 05/18/2015

An apparent difference between the historical mercury vapor concentration equations used by the mercury atmospheric measurement community and a new … more

Potential Primary Measurement Tool for the Quantification of DNA
Last Updated Date: 05/18/2015

The accurate mass determination of DNA and other nucleic acids is of critical importance in many clinical diagnoses and in forensic and molecular … more

Study of Microheterogeneity in Solid Reference Materials
Last Updated Date: 05/18/2015

Microbeam X-ray fluorescence (µXRF) has been used nondestructively to investigate elemental heterogeneity by constructing two-dimensional maps of … more

Improving High-Performance Inductively-Coupled Plasma Optical Emission Spectrometry (HP-ICP-OES) Through Exact Matching
Last Updated Date: 05/18/2015

Using high-performance inductively coupled plasma optical emission spectrometry (HP-ICP-OES), relative expanded uncertainties on the order of 0.2 % … more

Evaluation of Independent High-Precision Assay Procedures for a High-Purity Primary Standard Reagent
Last Updated Date: 05/18/2015

NIST assigns assay values for a suite of high-purity reagents using two techniques: coulometry and titrimetry. Coulometry is based on Faraday's … more

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