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Classical Analytical Chemistry Portal

Programs and Projects
Fundamental Chemical Metrology

The Chemical Sciences Division serves as the Nation’s reference laboratory for chemical compositional measurements and standards to enhance U.S. … more

pH Metrology

The pH metrology program supports traceability for pH measurements. This traceability rests on primary pH measurements in an ideal electrochemical … more

Novel Stationary Phase Materials in Separation Science Research

Research activities in separation science continue to focus on investigations of the fundamental physical and chemical processes that influence … more

Inkjet Gravimetry

Gravimetric and optical methods were developed to assure quantitative deposition of compounds from nano-dispense devices onto the surfaces of … more

Evaluation of Independent High-Precision Assay Procedures for a High-Purity Primary Standard Reagent

NIST assigns assay values for a suite of high-purity reagents using two techniques: coulometry and titrimetry. Coulometry is based on Faraday's … more

Nanotube Quality Control

Our goal is to develop new methods to rapidly screen bulk carbon nanotubes for chemical purity and homogeneity. The different synthesis routes … more

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