Title:
ELECTROSPRAY IONIZATION MASS SPECTROMETRIC DEVICE AND SYSTEM THEREFOR
Document Type and Number:
WIPO Patent Application WO/2003/065406
Kind Code:
A1
Abstract:
An electrospray ionization mass spectrometric device directly coupled to a micro LC, which in advance prevents the clogging of a micro LC column, pipelines and an ESI capillary, and records an alarm in data and shuts down the system when clogging occurs, thereby enabling high−reliability micro LC direct−coupling. An electrospay ionization mass spectrometric device or a system therefor which is provided with an electrospray ionization source (4) for introducing a sample solution from a chromatograph (1) into a very fine tube to produce ions under the atmospheric pressure, and which introduces ions produced in the ionization source to a mass spectrometer (17) provided in a vacuum chamber for mass spectroscopic measuring therein, characterized in that the device or the system has a display means for measuring the current value or intensity of ions having a specific mass in the sample solution and notifying an abnormal condition when the current value or intensity is below a threshold value.
Inventors:
KATO YOSHIAKI (JP)
Application Number:
PCT/JP2002/000859
Publication Date:
August 07, 2003
Filing Date:
February 01, 2002
Export Citation:
Assignee:
HITACHI HIGH TECH CORP (JP)
KATO YOSHIAKI (JP)
KATO YOSHIAKI (JP)
International Classes:
B01D59/44; G01N27/62; G01N30/72; G01Q30/14; G01Q30/16; H01J49/00; H01J49/04; H01J49/10; H01J49/42; (IPC1-7): H01J49/10; G01N27/62; G01N30/72; H01J49/04
Foreign References:
| JPH06201650A | 1994-07-22 | |||
| JP2001357815A | 2001-12-26 | |||
| JP2000164169A | 2000-06-16 |
Attorney, Agent or Firm:
Takada, Yukihiko (Saiwai-cho 2-chome Hitachi-shi, Ibaraki, JP)
Download PDF: