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Chemistry Programs & Projects

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Affect of Partial Charge Calculation Method on Adsorption Thermodynamics
Last Updated Date: 02/05/2015

In classical molecular simulations, electrostatic contributions to the potential energy are typically accounted for by assigning partial charges … more

Development of SRMs for Accurate Assessment of Exposure to Toxic Elements and Anions
Last Updated Date: 02/03/2015

As part of a multi-year interagency agreement between the National Institute of Standards and Technology (NIST) and the Centers for Disease Control … more

NIST Chemistry Webbook
Last Updated Date: 02/03/2015

The NIST Chemistry WebBook is a site on the Internet ( ) that provides convenient access to a variety of physical and … more

Virtual Measurements
Last Updated Date: 02/03/2015

Compared with conventional, physical measurements, the cost of computational modeling continues to drop. This has driven many industries to … more

Microfluidic Synthesis of Nanoparticles
Last Updated Date: 01/30/2015

Liposomes are nanometer-sized spherical vesicles made of phospholipids similar to those found in cell membranes of living organisms. Traditional … more

Development of SRM 2669 for Accurate Assessment of Arsenic Exposure
Last Updated Date: 01/28/2015

The National Institute of Standards and Technology (NIST), in collaboration with the Centers for Disease Control and Prevention (CDC), has … more

Nanotechnology for Sustainable Water and Energy
Last Updated Date: 01/28/2015

Objective We synthesize and characterize catalytic nanoparticles and nanoparticle-enhanced membranes for more efficient water treatment and … more

Development of SRM 955c Lead in Caprine Blood
Last Updated Date: 01/28/2015

Environmental and occupational exposure to toxic metals is assessed through whole blood analysis. Due to advances in measurement technology, … more

Vapor Characterization
Last Updated Date: 01/28/2015

A vapor is a fluid that develops (and will always be formed) above a condensed phase such as a solid or liquid. Understanding vapors is critical … more

Working/Functional Fluids
Last Updated Date: 01/28/2015

The conversion of primary energy (e.g. heat generated by the combustion of a fuel) into useful work most often involves a working fluid operating … more

Standard Reference Fluid Measurements
Last Updated Date: 01/28/2015

Property measurements of the very highest accuracies are important for developing the thermodynamic and transport property models for working … more

Proficiency Test Results
Last Updated Date: 01/28/2015

Proficiency Test (PT) results are available at no cost to customers who have tested SRMs 2092, 2096, and 2098.   A PT result serves as a means to … more

Development of Methods for Measurement of Vitamin D in Foods, Fortified Foods, and Dietary Supplements
Last Updated Date: 01/28/2015

Vitamin D is a fat-soluble vitamin that is essential for bone health. Vitamin D deficiency is associated with muscle weakness and osteoporosis and … more

Last Updated Date: 01/28/2015

Energy is one of the most critical problems facing the United States, with technical, economic and public policy aspects. Decision makers depend … more

Microcryocooler for Terahertz Detectors
Last Updated Date: 01/28/2015

NIST and the University of Colorado have been funded since April, 2006, by DARPA to develop a microcryocooler with a volume less than about 4 cm 3 … more

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