chemical fingerprint


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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 ?
In brief, data of chemical fingerprint and immunomodulatory effect of the 72 RA extracts were individually collected.
"Even when the horn is ground down into a fine powder we can still find that chemical fingerprint to say where that rhino is from," she said.
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.
* 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.
The resulting color pattern is like a chemical fingerprint. Each pattern is unique to a single odor or mixture of odors, Suslick says.
This portable device, also used by law enforcement, can identify over 6,000 chemicals by comparing the unique chemical fingerprint to its onboard database.
The first is a property tagging solution, like clear nail varnish, that contains a chemical fingerprint. If an item is stolen the liquid will show up under UV light, can be analysed and returned to its registered owner.
Each bottle of the colourless, odourless, solution contains a unique chemical fingerprint which cannot be washed or scratched off.