Title:
【発明の名称】液体クロマトグラフ結合型質量分析装置
Document Type and Number:
Japanese Patent JP3379510
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To stabilize ion molecule reaction of a sample and a solvent to attain liquid chromatograph combined mass spectrometry of high sensitivity by eccentrically arranging the center axis of a communicating path for mist flow from liquid chromatograph and the center of a pore. SOLUTION: A sample solution is poured from a pouring port 3, fed to an analysis column 5 by a moving phase 1, separated component by component, eluted and fed to an atomizer 6. Mist from the atomizer 6 passes through a vaporizer 8 and enters an atmospheric pressure ion source part 11. Since the center axis 12 of a communicating path for making mist flow pass through, and the center of a pore 14 are eccentrically arranged, an ion sampling axis 13 is near mist peripheral flow. Fine mist is thereby ionized to efficiently desorb added molecules from a solvent. Bare ion desorbed from the solvent by an intermediate pressure part 15 enters a mass analysis part 18 from a pore 16 and is subjected to mass dispersion and detected by a detector 19 to provide mass spectrum by a data processor 21 via a DC amplifier 20.
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Inventors:
Yoshiaki Kato
Tadao Mimura
Tadao Mimura
Application Number:
JP2000113215A
Publication Date:
February 24, 2003
Filing Date:
April 10, 2000
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G01N27/62; G01N30/72; H01J49/04; H01J49/10; (IPC1-7): G01N27/62; G01N30/72; H01J49/10
Domestic Patent References:
| JP5203637A | ||||
| JP4172245A | ||||
| JP4163849A |
Attorney, Agent or Firm:
Yasuo Sakuta