Chemistry Programs & Projects | |
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Measurements and Standards for Botanical Dietary Supplements
Last Updated Date: 10/09/2012 As part of a multi-year interagency agreement among the National Institute of Standards and Technology (NIST), the National Institutes of … more
Development of Reference Methods and Reference Materials for the Determination of Hormones in Human Serum
Last Updated Date: 10/09/2012 Hormones are chemical messengers that regulate many life functions, and deviations from normal levels can indicate serious health problems. … more
Development of a Standard Reference Material for Metabolites in Plasma
Last Updated Date: 10/09/2012 Metabolomics is a relatively new field that builds upon work in genomics and proteomics. Metabolomics can provide a unique perspective on the … more
Reference Measurement Procedures and Materials for Creatinine
Last Updated Date: 10/09/2012 Chronic kidney disease (CKD) is a growing problem in the U.S., and current estimates suggest that more than 20 million Americans are affected by … more
Optimization of the Standard Addition Method (SAM) Using
Last Updated Date: 10/09/2012 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: 10/09/2012 Recent innovative advances in the design and manufacture of isotope ratio mass spectrometers (IRMS) have revolutionized the study of natural and … more
Mercury Vapor Pressure Correlation
Last Updated Date: 10/09/2012 An apparent difference between the historical mercury vapor concentration equations used by the mercury atmospheric measurement community and a … more
Neutron Imaging for Health, Environment, and the Hydrogen Economy
Last Updated Date: 10/09/2012 Quantitative imaging tools enhance our ability to understand biological systems and achieve efficient hydrogen fuel cells. Today's … more
Fundamental Chemical Metrology
Last Updated Date: 10/09/2012 The Analytical Chemistry Division serves as the Nation’s reference laboratory for chemical compositional measurements and standards to … more
Potential Primary Measurement Tool for the Quantification of DNA
Last Updated Date: 10/09/2012 The accurate mass determination of DNA and other nucleic acids is of critical importance in many clinical diagnoses and in forensic and molecular … more
Study of Microheterogeneity in Solid Reference Materials
Last Updated Date: 10/09/2012 Microbeam X-ray fluorescence (µXRF) has been used nondestructively to investigate elemental heterogeneity by constructing two-dimensional … more
Improving High-Performance Inductively-Coupled Plasma Optical Emission Spectrometry (HP-ICP-OES) Through Exact Matching
Last Updated Date: 10/09/2012 Using high-performance inductively coupled plasma optical emission spectrometry (HP‑ICP-OES), relative expanded uncertainties on the order … more
pH Metrology
Last Updated Date: 10/09/2012 The pH metrology program supports traceability for pH measurements. This traceability rests on primary pH measurements in an ideal electrochemical … more
Evaluation of Independent High-Precision Assay Procedures for a High-Purity Primary Standard Reagent
Last Updated Date: 10/09/2012 NIST assigns assay values for a suite of high-purity reagents using two techniques: coulometry and titrimetry. Coulometry is based on … more
Standard Solution SRMs Provide Traceability for Millions of Measurements
Last Updated Date: 10/09/2012 For decades, NIST has provided the SRM 3100 series single-element standard solutions. The certified values are traceable to the International … more |
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