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Material Measurement Laboratory / Applied Chemicals and Materials Division

Fluid Characterization Group

Projects/Programs

Displaying 1 - 11 of 11
diagram of lab information management system

Advanced Fluid Characterization - Laboratory Information Management System

Ongoing
Breath sampling of cannabis users. I n July 2019, the National Institute of Justice awarded our team funding for a three-year project to provide the chemical foundation for industry to develop a cannabis breathalyzer. We are developing new experimental methods to enhance the clinical, thermodynamic
Cannabis Buds

Chemical Foundations for a Cannabis Breathalyzer

Ongoing
NIST's initial work in cannabis science was a series of measurements of the vapor pressure of two important cannabinoids: delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD). Our current effort is funded in part by interagency agreements with the ational Institute of Justice and by the NIST
NMR-Tubes

Fluid Phase Nuclear Magnetic Resonance (NMR) Spectroscopy

Ongoing
In-situ vapor-liquid equilibrium (VLE). We are applying vapor-phase NMR to measure VLE in-situ. We are currently applying this methodology to industrially important systems such as refrigerants and natural gas. The most widely used refrigerants have high global warming potential. Drop-in

Measuring Intermolecular Interactions with Electro-Acoustic Spectroscopy

Ongoing
We have a number of opportunities to collaborate with us. See below for details. What does this project aim to do for the chemical industry? Many industrial processes depend on the intermolecular environment- the solvents and ions that surround a molecule. These interactions impact separations
Nanoparticle Metrology

Nanoparticle Metrology in Complex Cellular Environments

Completed
Nanoparticle interactions with individual cells. Existing techniques to evaluate nanoparticle incorporation include ICP-AES or ICP-MS, which atomize entire samples (thousands of cells) and detect nanoparticles by quantifying the elemental composition. Bulk techniques provide general trends averaged
Cannabis

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

Renewable Energy and Fuels

Ongoing
Fuel volatility and chemical characterization. We specialize in the Advanced Distillation Curve (ADC) method , developed at NIST, which is a powerful tool for the measurement of distillation curves to characterize complex fluids. We have applied this to simple hydrocarbons, gasolines, diesel fuels

Standards Development to Ensure Reliable Breath Analysis in the Field

Ongoing
Numerous volatile organic compounds (VOCs) have been identified in human breath. These compounds can be produced by the body or by organisms in the body (e.g., bacteria or viruses) and provide a non-invasive window into human health. Inexpensive point-of-care devices are being developed to diagnose
Breathalyzer

Vapor Sampling in the Field

Ongoing
Breath sampling of cannabis users. Several versions of breath collection devices are being marketed for the detection of THC (delta-9-tetrahydrocannabinol) in the breath of cannabis users. THC is not directly correlated to intoxication but may indicate recent smoking or vaping. THC and other
Dvme-Schematic

Vapor Sampling to Support Public Safety and Forensics

Ongoing
Vapor pressures of unstable, reactive compounds. Over the last decade, our group has investigated a variety of low-volatility compounds including taggants (found in explosives), biofuels, terpenes and cannabinoids. Dynamic vapor microextraction (DVME), developed at NIST, is a small-volume dynamic