NIST research chemist Kelly Telu injects a sample into a mass spectrometer, a laboratory instrument that scientists use to identify unknown chemical compounds. (M. Delorme/NIST) The National Institute ...

The National Institute of Standards and Technology (NIST) has updated its database of chemical fingerprints, called mass spectra, that are used to identify unknown chemical compounds. The NIST Mass ...

Students learn to define and identify organic compounds. Chemical Reactions: Writing Molecular Formulas and an Introduction to Organic Molecules: Students learn to define and identify organic ...

Most of us carry around a phone with a microphone and camera that can replicate our senses of vision and hearing. What our phones can’t do, and what no other device can do, is replicate our sense of ...

Russian researchers have explained why scientists studying crude oil and celestial chemistry—as well as certain down-to-earth matters—frequently come across some molecules incorporating carbon, ...

THE usual way of identifying organic compounds consists in preparing a crystalline derivative and determining its melting temperature. Such preparation requires at least 50 mgm. of material. Compounds ...

The film discusses infrared spectroscopy, a powerful analytical tool that utilizes infrared radiation to analyze chemical compounds. It explains the nature of electromagnetic radiation and how ...

TOF is often used as a surrogate measurement for the presence of PFAS, due to the fact that analytical methods do not exist for detecting most PFAS and because naturally occurring fluorinated ...

The NIST Mass Spectral Library has expanded to include new human and plant metabolites, variants of fentanyl and other synthetic drugs. The National Institute of Standards and Technology (NIST) has ...