Global Patent Index - EP 1933366 A1

EP 1933366 A1 20080618 - Apparatus for mass analysis of ions

Title (en)

Apparatus for mass analysis of ions

Title (de)

Vorrichtung zur Massenanalyse von Ionen

Title (fr)

Appareil pour l'analyse de masse d'ions

Publication

EP 1933366 A1 20080618 (EN)

Application

EP 07405338 A 20071128

Priority

  • EP 06405519 A 20061214
  • EP 07405338 A 20071128

Abstract (en)

An apparatus for mass analysis of ions comprises a high current ion source (10), in particular an ion source providing at least 5 million ions/s, preferably at least 50 million ions/s, at an output of the ion source, a time-of-flight mass spectrometer (40) for analysis of ions transmitted from the ion source (10) and a filter (20) for segmenting incoming ions according to their m/q ratio into a first group of ions and into a second group of ions. The filter (20) is coupled to the ion source (10) and the filter (20) and the time-of-flight mass spectrometer are arranged in such a way that the ions of the first group are transmitted to the mass spectrometer (40) and that the ions of the second group are not transmitted to the mass spectrometer (40). Furthermore, the filter (20) is designed in such a way that the second group consists of ions belonging to one or several narrow bands of m/q. The apparatus allows for analyzing minor compound ions generated by the high current ion source (10) with good selectivity, undisturbed by major compounds.

IPC 8 full level

H01J 49/42 (2006.01); H01J 49/40 (2006.01)

CPC (source: EP)

H01J 49/40 (2013.01); H01J 49/4215 (2013.01)

Citation (applicant)

  • US 6140638 A 20001031 - TANNER SCOTT D [CA], et al
  • US 2004183007 A1 20040923 - BELOV MIKHAIL [US], et al
  • WO 0152569 A1 20010719 - NOKIA NETWORKS OY [FI], et al
  • US 6627912 B2 20030930 - BANDURA DMITRY R [CA], et al
  • HOFFMANN E.; LUDKE CH: "The ICP TOF mass spectrometer: an alternative for elemental analysis, Spectroscopy Europe", INT. J. MASS SPEC AND ION PROC., vol. 17, no. 1, 2005, pages 16 - 23
  • WATSON TH. J ET AL.: "A technique for mass selective ion rejection in a quadrupole reaction chamber", INT J. MASS SPEC AND ION PROC., vol. 93, 1989, pages 225 - 335
  • LANDAU L. D.; LIFSHITZ E. M.: "Mechanics", 1976, PER- GAMON PRESS
  • GERLICH, D.: "State-Selected and State-to-State lon-Molecule Reaction Dynamics", 1992, C.Y.NG AND M. BAER. ADVANCES IN CHEMICAL PHYSICS SERIES, article "Inhomogeneous Electrical Radio Frequency Fields: A Versatile Tool for the Study of Processes with Slow Ions", pages: 1
  • V. V. RAZNIKOV ET AL.: "Ion rotating motion in a gas-filled radio-frequency quadrupole ion guide as a new technique for structural and kinetic investigations of ions", RAPID COMMUNICATIONS IN MASS SPECTROMETRY, vol. 15, no. 20, pages 1912 - 1921, XP055465481, DOI: doi:10.1002/rcm.449

Citation (search report)

Designated contracting state (EPC)

CH DE FR GB LI

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 1933366 A1 20080618; EP 1933366 B1 20190612

DOCDB simple family (application)

EP 07405338 A 20071128