chemical fingerprint


Also found in: Medical.

chemical fingerprint

n.
A unique pattern indicating the presence of a particular molecule, based on specialized analytic techniques such as mass- or x-ray-spectroscopy, used to identify a pollutant, drug, contaminant, or other chemical in a test sample.
References in periodicals archive ?
This results in a kind of chemical fingerprint that researchers and doctors can use to determine whether the cell is healthy or cancerous.
The Thermo Scientific iXR Raman spectrometer uses optical interfacing to simultaneously provide a chemical fingerprint and material structure data while gathering elemental or physical information from complementary instrumentation that provides immediate correlation of data.
They tested the rock from Mount Garibaldi, which is more than 100 km away from Dionisio Point on the mainland, and the rock found on the village beach, and the chemical fingerprint matched.
The samples are analysed by computer software to generate a chemical fingerprint, which is used to determine a person's general health or the progress of a disease.
Chameleon is a paint containing a unique chemical fingerprint made up of rare earth elements, said Nina Hobson, executive director of Chameleon Asset Protection, which was formed in 2012 after the product was developed.
They showed that water in the oceans, meteorites and comets all bore the chemical fingerprint of formation before the solar system took shape.
This is the first time that we've been able to unambiguously say that we've found the chemical fingerprint of a first star," said lead researcher, Dr.
His latest published work focused on the chemical fingerprint that pinpointed the origins of winemaking in France.
Finally, the Raman component provides a chemical fingerprint derived from the inelastic Raman scattering related to the molecular mass, bond strength, crystal symmetry, and orientation with the material.
An 'intelligent needle' which uses laser light to analyse the chemical fingerprint of tissues in situ and in real time, allowing detection of cancers without the need for removing tissue samples/biopsies;
This work developed for the first time a UPLC method for the fast, simultaneous determination of peimine, peiminine, peimisine and the UPLC chemical fingerprint profile in F.
The technology works by using an infra-red laser light from a QC laser unit, to seek out the chemical fingerprint of specific molecules in gas phase, such as for example those that are linked to explosives.