NIST logo
NIST Home > Chemistry Programs and Projects 
 

Chemistry Programs & Projects

(showing 121 - 135 of 353)
Comparison of Co60 Absorbed Dose for High-Dose Dosimetry
Last Updated Date: 03/13/2013

NIST participated in a recent international comparison of standards for absorbed dose to water for 60 Co gamma radiation at radiation-processing … more

Development of Proteomics-Based Methods for Protein Quantification
Last Updated Date: 03/13/2013

NIST is developing methods for the quantification of clinically-relevant protein biomarkers by mass spectrometry. Some methods are intended to … more

Improving Measurement Quality in Clinical Proteomics
Last Updated Date: 03/13/2013

Through collaboration with academic and government institutes, NIST is critically evaluating and attempting to improve measurement quality in … more

Development of Reference Methods and Reference Materials for the Determination of Cardiac Troponin I in Human Serum
Last Updated Date: 03/13/2013

Cardiac troponin I (cTnI) is considered the 'gold standard' for the diagnosis of myocardial infarction and the assessment of cardiac damage. Yet … more

Development of a Reference Measurement Procedure for C-Reactive Protein in Human Serum
Last Updated Date: 03/13/2013

C-reactive protein (CRP) levels in serum or plasma have been used as an indicator of inflammation and infection. Recent evidence also suggests … more

Development of an Amino Acid (in Solution) Standard Reference Material
Last Updated Date: 03/13/2013

Amino acids are the sequential components of proteins and many are essential to our physiological well-being. Their quantification by the … more

Dose/Dose-Rate Effects in Alanine Dosimetry
Last Updated Date: 03/13/2013

Check standards are used by the NIST Ionizing Radiation Division to monitor the performance of the alanine dosimetry system that is central to its … more

Chromatographic Separation of Unfolded Proteins for Protein Quantification
Last Updated Date: 03/13/2013

NIST is developing methods for the quantification of protein biomarkers by mass spectrometry (MS). Stable isotope labeling of proteins/peptides … more

Applications of NIST Alanine/EPR Dosimetry to the Irradiation of Blood and Blood Products
Last Updated Date: 03/13/2013

At present, irradiation of blood products with ionizing energy is the only procedure known to prevent transfusion-associated graft-versus-host … more

Advanced X-ray Systems for the Detection of Special Nuclear Materials
Last Updated Date: 03/13/2013

The Dosimetry Group provides support to the Domestic Nuclear Detection Office (DNDO) of the Department of Homeland Security (DHS) for their … more

New Reference Standards for Digital Mammography
Last Updated Date: 03/13/2013

New NIST reference mammography beams using a tungsten target and silver, rhodium, molybdenum and aluminum filters at 20 kV to 50 kV have been … more

National and International Standards for X-ray Security Screening Applications
Last Updated Date: 03/13/2013

The primary objective of this project is to assure the technical performance and radiation safety of the nation’s x-ray and gamma-ray security … more

Air Kerma Measurements in High Energy X-ray Beams
Last Updated Date: 03/13/2013

Cargo-inspection systems employ high-energy x-ray beams from accelerators. These systems are designed to detect potential threats that may be … more

Small-Field Therapy Dosimetry Using Alanine/EPR
Last Updated Date: 03/13/2013

NIST has an ongoing program in small-field therapy dosimetry studies using alanine/EPR.

Absorbed Dose to Water and Air Kerma Calibrations in Co-60 Therapy Level Gamma-Ray Beams
Last Updated Date: 03/13/2013

Three dosimetry calibration laboratories accredited by the American Association of Physicists in Medicine (AAPM) routinely perform calibrations of … more

Contact
General Information:
301-975-NIST (6478)
inquiries@nist.gov

100 Bureau Drive, Stop 1070
Gaithersburg, MD 20899-1070