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The accuracy of clinical diagnostic measurements is essential for reliable diagnosis and cost-effective treatment of disease. NIST's involvement in reference
Hormones are chemical messengers that regulate many life functions, and deviations from normal levels can indicate serious health problems. Measurement of
A variety of nutrients are essential for normal functioning of the human body, and deficiencies can lead to serious illnesses. Accurate measurement of vitamin
The National Institute of Standards and Technology (NIST), in collaboration with the Centers for Disease Control and Prevention (CDC), has developed Standard
The presence of volatile organic compounds (VOCs), which include hydrocarbons, monoterpenes and oxygenates, in the atmosphere has become important to climate
The National Institute of Standards and Technology (NIST), in collaboration with the National Institutes of Health (NIH) Office of Dietary Supplements (ODS)
In classical molecular simulations, electrostatic contributions to the potential energy are typically accounted for by assigning partial charges to some or all
Nanoparticle-based consumer products are becoming available in the market at an increasing rate, but the safety of nanoparticles and the environmental fate of
The metabolomics program at NIST is a collaboration between multiple institutions located at the Hollings Marine Laboratory (HML) in Charleston, SC. This
Rather than relying on templates, processing complex metrology data can be automated to reduce both the time required and the potential for transcription and
As a result of the environmental impact of mercury and the neurotoxic risk associated with trophic transfer of methyl mercury to humans, the reduction of
NIST assigns assay values for a suite of high-purity reagents using two techniques: coulometry and titrimetry. Coulometry is based on Faraday's Laws of
The National Institute of Standards and Technology (NIST) established a Food Nutrition and Safety Measurements Quality Assurance Program (FNSQAP) to support the
To support regulatory and industry requirements for reference materials and standards, NIST produces and maintains a large inventory of fossil fuel SRMs that
The Free Energy and Advanced Sampling Simulation Toolkit (FEASST) is a free, open-source, public domain software to conduct molecular and particle-based
Climate science increasingly relies on satellite- and ground-based spectrometers for the top-down inventories of atmospheric greenhouse gases, most notably
Recent innovative advances in the design and manufacture of isotope ratio mass spectrometers (IRMS) have revolutionized the study of natural and man-induced
The Organic Chemical Metrology Program exists within the Chemical Sciences Division, MML, which is located at the Hollings Marine Laboratory in Charleston, SC.
Many polymeric fluids, including biotherapeutics and fuels, can have unusual physical behavior in solutions, and many applications require detailed knowledge of
Using high-performance inductively coupled plasma optical emission spectrometry (HP‑ICP-OES), relative expanded uncertainties on the order of 0.2 % can be
The overarching goal of this project is to develop and disseminate measurement tools to improve the accuracy and reliability of chemical measurements related to
The Gas Metrology Group periodically participates in bilateral and multi-laboratory international comparisons. During the past two years comparisons have taken
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