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Chemical Analysis Programs & Projects

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Optimization of the Standard Addition Method (SAM) Using
Last Updated Date: 01/20/2015

The standard addition method (SAM) was first described by oceanographers in 1955 to overcome matrix effects in the determination of strontium in … more

High-Precision Isotopic Reference Materials
Last Updated Date: 01/20/2015

Recent innovative advances in the design and manufacture of isotope ratio mass spectrometers (IRMS) have revolutionized the study of natural and … more

Monitoring Contaminants in the Arctic and Subarctic Using Banked Seabird Eggs
Last Updated Date: 01/20/2015

More than 95% of the seabirds breeding in the continental United States nest at colonies in the Bering and Chukchi seas and Gulf of Alaska. In … more

NIST SRM for Reproducible Analyses of Single-Walled Carbon Nanotubes
Last Updated Date: 01/20/2015

Carbon nanotubes (CNTs) are one of the first major nanoscale manufactured products to enter the market. Therefore, reliable and reproducible … more

Isotopes as Environmental Tracers in Archived Biological Specimens
Last Updated Date: 01/20/2015

There is increasing interest in the analytical and environmental communities in using mercury isotopic fingerprinting to identify source patterns … more

Methods and Measurements for Emerging Contaminants
Last Updated Date: 01/20/2015

Regulatory and health agencies within the US, Canada, and countries within Europe are continuously identifying compounds of suspected carcinogenic … more

SRMs for Organic Contaminants in Human Serum, Milk, and Urine
Last Updated Date: 01/20/2015

NIST and the Centers for Disease Control and Prevention (CDC) are collaborating to develop seven new SRMs to meet the expanding needs for the … more

Renewal of NIST Benchmark SRMs for Accurate Determinations of Trace Elements in Serum and Liver Tissues
Last Updated Date: 01/20/2015

The Centers for Disease Control and Prevention (CDC) collects data on elemental composition of human body fluids and tissues as part of major … more

CCQM Activities in the Gas Analysis Working Group
Last Updated Date: 01/20/2015

NIST's Chemical Sciences Division Gas Metrology group has participated in over 20 Consultative Committee for Amount of Substance-Metrology in … more

The NIST Standard Reference Photometer for Ozone Measurement Traceability
Last Updated Date: 01/20/2015

The NIST Standard Reference Photometer (SRP), developed jointly with the U.S. Environmental Protection Agency (USEPA), has provided an … more

Development of Standards for the World Meteorological Organization, Global Atmosphere Watch Program
Last Updated Date: 01/20/2015

The presence of hydrocarbons in the atmosphere has become important to climate change assessment studies due to their role as precursors to ozone … more

Chemical Metrology in Support of the US Hydrogen Infrastructure
Last Updated Date: 01/20/2015

Under the initiative "Enabling the Hydrogen Economy," NIST will apply its unique facilities and expertise in the multi-agency effort to make … more

Traceable Calibration Gases: SRMs, NTRMS, and Protocol Gases
Last Updated Date: 01/20/2015

The Gas Metrology Group in the Chemical Sciences Division is tasked with providing traceability in gas analysis for the U.S. This group works with … more

Measurements and Standards to Support Global Climate Change Studies
Last Updated Date: 01/20/2015

Much of the world's assessment and critical evaluation of currently available data on contributions to climate change comes from the … more

Mercury Vapor Pressure Correlation
Last Updated Date: 01/20/2015

An apparent difference between the historical mercury vapor concentration equations used by the mercury atmospheric measurement community and a … more

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