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1. (WO2017039133) QUADRUPOLE MASS FILTER FOR MASS SPECTROMETER AND QUADRUPOLE MASS SPECTROMETER INCLUDING SAME

Pub. No.:    WO/2017/039133    International Application No.:    PCT/KR2016/007013
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Fri Jul 01 01:59:59 CEST 2016
IPC: H01J 49/42
G01N 27/62
Applicants: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
한국표준과학연구원
Inventors: PARK, Chang Joon
박창준
AHN, Sang Jung
안상정
YOON, Sae Won
윤세원
Title: QUADRUPOLE MASS FILTER FOR MASS SPECTROMETER AND QUADRUPOLE MASS SPECTROMETER INCLUDING SAME
Abstract:
The present invention relates to a quadrupole mass filter for a quadrupole mass spectrometer, the quadrupole mass filter comprising four electrodes and an insulator holder for fixing the four electrodes. In the quadrupole mass filter according to the present invention, a portion of the inner surface of the insulator holder, which comes in contact with each electrode, is formed as a flat surface, and a portion of each of the four electrodes, which comes in contact with the insulator holder, is formed as a flat surface. Therefore, the present invention can provide a quadrupole mass spectrometer that is excellent in the parallelism, straightness, and assembly accuracy of a quadrupole.