公开(公告)号：US11860107B2

公开(公告)日：2024-01-02

申请号：US17431370

申请日：2020-05-20

Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Jai Ick Yoh ,  Jun Ho Yang ,  Jae Hun Jung

IPC: G01N21/68 ,  G01N15/02 ,  G01J3/443 ,  G01N21/73

CPC classification number: G01N21/68 ,  G01J3/443 ,  G01N15/0227 ,  G01N21/73

Abstract: A device and a method of detecting a concentration of a sample are provided. The device includes a power supply unit configured to supply power to generate plasma, a plasma generation unit connected to the power supply unit and including a pair of electrodes facing each other, a plurality of signal detection units arranged on the pair of electrodes and configured to sense light emitted from the sample because of the plasma, and a controller configured to control a driving start point of the signal detection unit so that the signal detection unit is driven after a preset period of time after oscillation is terminated between the pair of electrodes.