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Projects/Programs

Displaying 101 - 125 of 172

Nanotube Quality Control

Completed
Thermogravimetric analysis (TGA) is widely used to gather data on nanotube chemistry. By monitoring weight loss as a function of temperature, one can determine decomposition kinetics and use this data to closely approximate the distribution of impurities present in a few milligrams of material

Nature of the Threat

Ongoing
"Improving Particle Collection Efficiency of Sampling Wipes used for Trace Chemical Detection", Gillen, Greg and Lawrence, Jeffrey and Sisco, Edward and Staymates, Matthew E. and Verkouteren, Jennifer and Robinson, Elizabeth L. and Bulk, Alexander, Anal. Methods, 14, 581-587 (2022). http://dx.doi

NCNR DAC and CCUS efforts

Ongoing
Objectives To advance US competitiveness in Direct Air Capture (DAC) and Carbon Capture, Usage, and Sequestration (CCUS) Use advanced neutron scattering techniques to understand the adsorption process for the most promising materials for adsorption-based carbon capture and provide avenues to

The NIST Chemistry Webbook

Ongoing
Intended Impact It is part of NIST's mission to distribute Standard Reference Data to scientists, engineers, educators, and the general public. The NIST Chemistry WebBook is intended to help fulfill NIST's mission by distributing such data over the Internet. Objective Develop a web site

NIST Data Resources for Adsorption

Ongoing
NIST/ARPA-e Database of Novel and Emerging Adsorbent Materials A centralized resource for the scientific community to find and compare single- and multi-component adsorption isotherms reported in the literature. The database sorts data according to adsorbent material, adsorbate species

NIST Ocean Carbon Measurements

Ongoing
NIST is committed to sustaining the quality of ocean carbon measurements by developing capabilities to provide certified reference materials for the ocean carbonate system measurements and by conducting research to understand fundamental elements of the ocean carbon thermodynamic system. NIST Ocean

NIST Proficiency Testing

Ongoing
A typical lot of NIST SRMs has 300 units, with 5 specimens in each unit. These SRMs are tested by customers and the customer verification data is returned to NIST for evaluation according to the requirements of ASTM E23. Once a minimum of 50 verification results are returned to NIST for a particular

NIST PS1 Primary Standard for quantitative NMR (Benzoic Acid)

Completed
With explicit SI linkage, the overall impact of this apical reference material is profound—this primary standard, as well as forthcoming members of its class, provides technology transfer of chemical purity realization to the commercial sector for characterization of many thousands of organic

The NIST Standard Reference Photometer for Ozone Measurement Traceability

Ongoing
The concentration of ozone in the atmosphere continues to be an important global issue both scientifically and politically. Stratospheric ozone protects the Earth from harmful UV radiation, while tropospheric ozoneis a major health concern and contributes to global climate change as a greenhouse gas

NIST Standard Reference Simulation Website

Ongoing
Molecular simulations, in particular Monte Carlo Molecular Simulation and Molecular Dynamics Simulation, are methods for computing the properties of some kind of system, for which the intermolecular interactions are specified via mathematical relationships derived from statistical mechanics. Since

NIST Tools for Cannabis Laboratory Quality Assurance

Ongoing
Since the 1970s, cannabis (marijuana and hemp) and its constituent, Δ 9-tetrahydrocannabinol or THC, have been classified as Schedule I controlled substances. Seized evidence is tested by forensic laboratories, which verify the identity of the plant through macro- and microscopic evaluation and the

NIST Urine Albumin Standardization Program

Ongoing
Kidney disease is a major global economic and public health issue, with chronic kidney disease (CKD) representing one of the top 10 most prominent causes of death worldwide. The public health and economic impact of CKD and other kidney diseases has led to the need for the accurate detection of

Novel Psychoactive Substance (NPS) Data Hub

Ongoing
A growing portion of forensic drug laboratory’s workload is the identification of novel psychoactive substances (NPSs), or emerging synthetic drugs (ESDs), presented as exhibit materials after seizure events. A pressing need exists for the rapid characterization of both the active ingredient(s) and

Open Port Liquid Interface Mass Spectrometry

Ongoing
Rapid screening for chemical traces of explosives and narcotics is widely used to support homeland security and law enforcement. These target compounds span a range of physicochemical properties from organic to inorganic, with preferential ionization pathways in both negative and positive mode

Organic Contaminants in Human Serum, Milk, and Urine

Ongoing
SRMs have been developed to support quality assurance measurements for contaminants in human fluids. Biomonitoring laboratories will use these SRMs to validate methods and as control materials for specific analyses. We have developed and characterized several human-matrix SRMs for organic

Peptide Mass Spectral Libraries

Ongoing
Intended Impact Modern mass spectrometers used in the field of proteomics are capable of profiling thousands of peptides in a single experiment. Each of these peptides is fragmented to form a mass spectrum. Therefore, interpretation of these mass spectra is a critical step in the experimental

Per- and Polyfluoroalkyl Substances (PFAS)

Ongoing
Perfluorinated and polyfluorinated alkyl substances (PFAS) constitute a family of compounds that are distinguished by partial or complete fluorination of alkyl hydrocarbons. Dubbed “forever chemicals”, the unique chemistry of PFAS imparts a high level of stability, making the compounds resistant to

Performance Metrics for Proteomics

Ongoing
Intended Impact Proteomics experiments designed to identify protein markers specific to a particular disease or disease state rely on repeatable identification of proteins within a control set. Repeatability provides statistical assurance that clear differences between two sets (e.g. sick vs

Point-of-Care Pharmaceutical Manufacturing & Precision Medicine

Ongoing
We are employing quality by design (QbD) and risk assessment (cause-and-effect) approaches to investigate production technologies ( e.g., drop on demand or inkjet printing platforms) and appropriate analytical control strategies for point-of-care manufacture of narrow therapeutic index drugs

Polymer Formulations

Completed
Bringing new and optimized formulated products to market requires measurements that will allow rapid assessment of the structure and properties of multicomponent mixtures over large parameter spaces. To this end, we are developing microfluidic "lab on a chip" technologies that enable researchers to

Potential Primary Measurement Tool for the Quantification of DNA

Ongoing
The biotechnology industry relies primarily on absorbance and fluorescence methodologies to assess DNA mass. However, these measurements can be seriously compromised by impurities in the DNA preparations or state of the DNA itself. These techniques are also not traceable to the SI because the