US 12,476,095 B2
Sample analyzing apparatus and method
Ayumi Kubo, Tokyo (JP); Masaaki Ubukata, Tokyo (JP); and Kenji Nagatomo, Tokyo (JP)
Assigned to JEOL Ltd., Tokyo (JP)
Filed by JEOL Ltd., Tokyo (JP)
Filed on Jul. 26, 2023, as Appl. No. 18/226,493.
Claims priority of application No. 2022-120745 (JP), filed on Jul. 28, 2022.
Prior Publication US 2024/0038513 A1, Feb. 1, 2024
Int. Cl. H01J 49/00 (2006.01); G16C 20/20 (2019.01)
CPC H01J 49/0036 (2013.01) [G16C 20/20 (2019.02)] 13 Claims
OG exemplary drawing
 
1. A sample analyzing apparatus comprising:
a first memory configured to store a primary library having a plurality of standard mass spectra acquired from a plurality of compounds forming a first compound group, and a plurality of molecular structures corresponding to the plurality of standard mass spectra;
a second memory configured to store a secondary library having a plurality of predicted mass spectra corresponding to a plurality of compounds forming a second compound group, and a plurality of molecular structures corresponding to the plurality of predicted mass spectra; and
a processor, configured to:
execute a primary search with respect to the primary library based on a sample mass spectrum acquired from a sample;
judge enlargement of a search range based on a result of the primary search; and
execute a secondary search with respect to the secondary library based on the sample mass spectrum, when it is judged that the search range is to be enlarged, to thereby estimate a molecular structure of the sample.