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Projects/Programs

Displaying 26 - 33 of 33

Recaptured and Reclaimed Plastic Measurements

Ongoing
Plastics are a complex mixture of various types of polymers with different chemical structures, shapes, and chemical additives. From microscopic nanoplastics (as small as 1 nm) to large megaplastics (over 1 m), plastic poses significant measurement science challenges. By developing accurate methods

Reference Material Production and Support

Ongoing
Bulk Cryogenic Production Large-batch cryogenic reference materials are produced using a specialized Palla VM-KT Vibrating Cryomill. The mill is pre-cooled to cryogenic temperatures using liquid nitrogen. Frozen material is fed through the inlet funnel to a vibrating chamber containing 26 titanium

Reference materials for emerging and legacy organic contaminants

Ongoing
The Biochemical and Exposure Sciences Group (BSEG) produces environmental matrix and solution-based reference materials to support the environmental measurement community. These materials assist in identifying legacy organic contaminants such as polychlorinated biphenyls (PCBs)that were commonly

Sample Tracking and Analytical Reporting (STAR)

Ongoing
STAR (formerly known as Marine STAR) will develop a web-based interface to provide easy access to sample information from the NIST Biorepository. Information will include, but is not limited to, sample availability, chemical analysis status and results, and links to publications. Metadata associated

Seabird Tissue Archival and Monitoring Project (STAMP)

Ongoing
Seabirds are an important group of upper trophic-level marine organisms with potential for accumulating lipophilic chemical contaminants which have been linked to adverse health effects. Analyses of seabird tissues, particularly eggs, have played important roles in temporal and spatial ecosystem

Steroid Hormone Suite Analysis

Ongoing
Steroid hormones are signaling molecules that are major regulators of development, reproduction, stress, and growth. Steroids are synthesized from cholesterol through a series of enzymes, resulting in hormones with distinct biological activities. Although hormones are similar in structure, and

Vertebrate Endocrine Metrology in Non-Traditional Matrices

Ongoing
NIST collaborates with stakeholders to develop techniques for measuring hormone levels as part of animal health assessment. The process of capturing and transporting animals before sampling can induce stress, which may alter the hormone levels in the bloodstream. Therefore, the collection of blood