公开(公告)号：US20190049445A1

公开(公告)日：2019-02-14

申请号：US15569005

申请日：2016-04-21

Applicant: BIOMERIEUX

Inventor： Maud ARSAC ,  Pierre-Jean COTTE-PATTAT ,  Victoria GIRARD ,  Valérie MONNIN

IPC: G01N33/569 ,  H01J49/00 ,  C12Q1/04

Abstract: A method for identifying by mass spectrometry an unknown microorganism subgroup among a set of reference subgroups, including a step of constructing one knowledgebase and one classifying model per associated subgroup on the basis of the acquisition of at least one set of learning spectra of microorganisms identified as belonging to the subgroups of a group and including: constructing an adjusting model allowing mass-to-charge offsets of the acquired spectra to be corrected on the basis of reference masses-to-charges that are common to the various subgroups; adjusting the masses-to-charges of all of the lists of peaks of the learning spectra and constructing one classifying model per subgroup and the associated knowledgebase on the basis of the adjusted learning spectra.