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Chemistry Programs & Projects

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Milli X-ray Fluorescence X-ray Spectrum Imaging Technique Development
Last Updated Date: 10/02/2012

Significant improvements were made in the area of technique development for Eagle III mXRF since its initial installation in 2007. The diverse … more

Mitigation of Systematic Errors in EFTEM Spectral Imaging via Median Filtering
Last Updated Date: 10/02/2012

A method has been developed for the removal from CCD images of point blemishes (PBs) ubiquitous in the acquisition of energy-filtered transmission … more

Chemistry in Analytical Microscopy Group
Last Updated Date: 10/02/2012

Chemistry is the science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical … more

Inkjet Gravimetry
Last Updated Date: 10/02/2012

Gravimetric and optical methods were developed to assure quantitative deposition of compounds from nano-dispense devices onto the surfaces of … more

Evaluation of the Extent of Electron Scattering in a Low Vacuum Scanning Electron Microscope
Last Updated Date: 10/02/2012

Low vacuum scanning electron microscopes utilize gas molecules in the specimen chamber to neutralize the specimen charging from the impinging … more

DTSA-II Reinvention of a Classic
Last Updated Date: 10/02/2012

The original NBS/NIH DTSA (Desktop Spectrum Analyzer) software was widely used in the x-ray microanalysis research community. The combination of … more

Depth Profiling of Drug Eluting Stent Coatings with Cluster SIMS
Last Updated Date: 10/02/2012

There is much excitement in the cardiology community about drug eluting stents (DES), a promising new treatment for coronary artery disease. A … more

Atomic Scale Imaging of Nanoscale Structures with Elemental Sensitivity in the NIST Titan 80-300
Last Updated Date: 10/02/2012

The characterization of CdSe/ZnS quantum dot structures has been carried out with compositionally sensitive imaging techniques utilizing the … more

Coupling Nanowire Chemisresistors with MEMS Microhotplate Gas Sensing Platforms
Last Updated Date: 10/02/2012

Recent advances in nanotechnology have yielded materials and structures that offer great potential for improving the sensitivity, selectivity, … more

Analysis of Copper Incorporation Into Zinc Oxide Nanowires
Last Updated Date: 10/02/2012

ZnO nanowires (NWs) are grown on bulk copper by chemical vapor deposition. Photoluminescence (PL) microscopy revealed band gap emission at 380 nm … more

Analysis of 3D Elemental Mapping Artifacts in Biological Specimens using Monte Carlo Simulation
Last Updated Date: 10/02/2012

We performed Monte Carlo simulation to demonstrate the feasibility of using the focused ion beam based X-ray microanalysis technique (FIB-EDS) for … more

3D Molecular Bioimaging Mass Spectrometry
Last Updated Date: 10/02/2012

In recent years, the use of cluster primary ion projectiles for organic secondary ion mass spectrometry (SIMS) has generated considerable interest … more

A Comparison of WD-EPMA Heterogeneity Testing Procedures
Last Updated Date: 10/02/2012

The heterogeneity of the four elements in a TiAl(NbW) SRM 2061 alloy were determined from five specimens with WD-EPMA (wavelength dispersive – … more

3D Elemental Mapping of Cells using Electron and Ion Beams
Last Updated Date: 10/02/2012

Although it is the most commonly used technique for the chemical analysis of cells, mass spectrometry of cell lysate can only provide bulk … more

Thermophysical Properties of Biofuels
Last Updated Date: 10/02/2012

The Thermophysical Properties Division has begun a program to develop thermophysical property data for the biofuels. Transportation fuels will … more

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