U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Chemistry

Analytical chemistry

News and Updates

Projects and Programs

Publications

Calibration

Author(s)
Lane C. Sander
In the context of chemical metrology, calibration is the process of relating a known quantity of an analyte to the corresponding measured instrumental response

Software

NIST Mass and Fragment Calculator Software

The NIST Mass and Fragment Calculator is a program written in Visual Basic which calculates the mass of an input peptide or protein sequence along with m/z ions
DTSA II

NIST DTSA-II

NIST DTSA-II builds on the best available algorithms in the literature to simulate, quantify and plan energy dispersive x-ray analysis measurements.

JB95 Spectral fitting program

A graphical user interface program, JB95 , based on a Windows 95 © API platform has been written in the C programming language to aid in the analysis of complex

Tools and Instruments

Milli X-Ray Fluorescence Spectrometer

The Eagle III Micro XRF unit is similar to a traditional XRF unit, with the primary difference being that the X-rays are focused by a polycapillary optic into a
THz photomixer spectrometer

Continuous-wave terahertz spectrometer

The continuous-wave terahertz spectrometer makes use of two near-infrared lasers. The first laser is a fixed-frequency cw ring Ti:Saph laser operating near 840

Awards

David Long Honored with PECASE

The Presidential Early Career Award for Scientists and Engineers (PECASE) is the highest honor bestowed by the United States Government to...