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The group performs state-of-the art chemical and physical measurements to provide reference data, develop standards and models, and advance chemical measurement science and the fundamental understanding of chemical systems.
Research activities include elucidation of reaction mechanisms and time-dependent phenomena, such as the measurement of rate constants, transport properties, and the transformation of complex chemical systems by investigating composition, electronic and structural properties as it relates to chemical and physical function. The group compiles, critically evaluates, and disseminates reference methods, data, and Standard Reference Materials. Additionally, the group maintains facilities and expertise in nuclear methods for elemental analysis in collaboration with the NIST Center for Neutron Research and external partners. The research focuses on areas of national and industrial needs such as those related to energy, manufacturing, security, and the environment. Group members are engaged with international standards development organizations and other National Metrology Institutes to establish comparability of measurement capabilities.
Atomic layer deposition (ALD) reactor with time resolved optical diagnostics
Transmission electron microscopy (TEM) images of aerosol reference material candidates
Inductively-coupled Plasma-Etch Chamber
The video below is a 10 Minute Introduction to Neutron Depth Profiling
Many people wear masks in public to slow the spread of COVID-19, as recommended by the Centers for Disease Control and Prevention (CDC). However, masks with
Researchers have completed a new study of how well a variety of natural and synthetic fabrics filter particles of a similar size to the virus that causes COVID
The Joint Chemical Agent Detector (JCAD) has become an important defense tool on battlefields and in war-torn cities over the last few years. About the size and
This programs is aimed at determining the fundamental chemical and physical properties of the large organic compounds in fuels related to their combustion. Such
Because of NIST's role as the National Metrology Institute (NMI) in the U.S., the Chemical Sciences Division's measurement capabilities must be benchmarked
The National Institute of Standards and Technology (NIST), in collaboration with the Centers for Disease Control and Prevention (CDC), has developed Standard
All industrial sectors rely on elemental analysis and physical properties testing to confirm product compliance with manufacturing specifications. Support of
Jamie L. Weaver, Andrew Plymale, Jacqueline Wells, Carolyn I. Pearce, Colin Brislawn, Emily Graham, Tanya Cheeke, Jessica Allen, Vincent Danna, Kimberly Tyrrell, Rolf Sjoblom, Edward Vicenzi, John McCloy, Eva Hj?rthner-Holdar, Erik Ogenhall, Mia Englund, David Peeler, Albert Kruger, Rick L. Paul
A pre-Viking era vitrified hillfort, Broborg, provides a habitat analogue for disposed radioactive waste glass and shows strong niche partitioning among the
Werickson Fortunato de Carvalho Rocha, Cary Presser, Shannon Bernier, Ashot Nazarian, David A. Sheen
Multivariate calibration methods were evaluated using the measured thermal signatures of 11 diesel/biodiesel fuel blends (including 4 repeated runs for each
Christopher D. Zangmeister, James G. Radney, Edward P. Vicenzi, Jamie L. Weaver
Filtration efficiencies (FE), pressure drops (ΔP) and construction parameters were measured for 27 cloth materials (12 cotton, 8 full synthetic, 3 synthetic
Prompt gamma-ray activation analysis is a measurement technique for nondestructive elemental analysis. Samples are irradiated by a beam of neutrons inducing
Instrumental neutron activation analysis (INAA), or sometimes referred to as simply NAA, is a method for determination of many elements at low levels in a wide
Radiochemical neutron activation analysis (RNAA) extends the capabilities of instrumental neutron activation analysis (INAA) by adding a chemical separation to
Light elements such as helium, lithium, boron, and nitrogen are essential constituents in materials that enable energy technologies; lithium ion batteries
Work by NIST's Christopher Zangmeister, James Radney, and Jamie Lynn Weaver, in collaboration with the Smithsonian, tested how well different fabrics filtered
