Automatic Titration System

The Chemical Sciences Division (CSD) at the National Institute of Standards and Technology located in Gaithersburg, MD is involved in the development of Standard Refence Materials (SRMs) that require extensive analysis to provide traceability to SI. For many SRMs or for pure chemical compounds that are used to validate components of SRMs, high-quality assays are required to determine the mass fractions of key materials. For these high-quality assays and for stability measurements of certain SRMs, the Inorganic Chemical Metrology Group uses Redox titrations assay a wide variety of materials in support of our SRM program. The current capabilities of the Inorganic Chemical Metrology Group allow the Redox titrations to either be performed by hand, which is labor intensive, slow, and more prone to human error, on by one in house instrument that is not specifically designed to perform titrations and is usually tied up with the analysis it was built for.