Date: 5 months ago   Category: Society

Physicists have thought up a new way to define explosives

Physicists of the Baltic university together with the Turkish colleagues has developed a new way of recognition of explosives at check-points, follows from results of a research of scientists which are published in the Chemical Physics magazine. "Physicists of the Baltic Federal University (BFU) of Immanuel Kant together with colleagues of the Technical university Gebze (Turkey) has offered

a way of detection of explosive and toxic agents by means of nuclear magnetic resonance. The decision can be applied, for example, at check-points", - it is said in the statement.

As are told by scientists, the traditional method of nuclear magnetic resonance can't be used during the procedure of examination because of "bulkiness of installation, its high cost and duration of the analysis".

For this purpose the Russian and Turkish scientists have developed a method when the nuclear magnetic resonance (NMR) happens in weaker magnetic field on nitrogen kernels.

"YaMR-relaksometriya assumes other technical approach allowing to reduce costs of installation and operation of the equipment and also to accelerate process of the analysis. The important advantage of the offered approach is the analysis of relaxation signals of kernels of nitrogen which don't depend on intermolecular interactions and poorly depend on concentration of substance", - it is noted in the publication.

Scientists investigated three groups of nitrogen-containing substances - explosive and flammable liquids; the connections containing nitrate group (the nitrogen connected with three atoms of oxygen) and also toxic substances with the nitrogen atom which isn't connected to oxygen. scientists have determined by

At a research of three of these types of systems time of a relaxation of the discomposed system which would correspond to substance, harmful to the person.



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