The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2023
Filed:
Jun. 08, 2017
Paris Sciences ET Lettres—quartier Latin, Paris, FR;
Centre National DE LA Recherche Scientifique (Cnrs), Paris, FR;
Frédéric Rousseau, Esclavolles-Lurey, FR;
Olivier Lesage, Vitry-sur-Seine, FR;
Jonathan Cramer, Paris, FR;
Frédéric Prima, Paris, FR;
Daniel Morvan, Paris, FR;
Abstract
The invention relates to a process for selectively and continuously extracting a series of desired species from a matrix, comprising the steps of:—injecting a plasma () in an extraction chamber by means of a plasma torch,—continuously monitoring () the excited elements extracted from the matrix and contained in the plasma by optical emission spectroscopy, and for each species of the series,—setting a distance () between the support and the plasma torch, and the composition of the injected plasma as a function of the monitored excited elements so that only one desired species of the series of species is being extracted from the matrix under molecular form, and—providing () a plate in the extraction chamber, exterior to the plasma, causing collection of molecules comprising said desired species by deposition onto the surface of the plate.