Microspray column, mass spectrometer, and mass spectrometry

Details Microspray column, mass spectrometer, and mass spectrometry Microspray column, mass spectrometer, and mass spectrometry

2005-12-27

2005-12-27

Wells, Nikita (Department: 2881)

Radiant energy

Ionic separation or analysis

With sample supply means

C250S281000, C250S282000, C216S027000, C356S316000, C315S111510

Reexamination Certificate

active

06979817

ABSTRACT:
A problem is to provide a microspray column capable of increasing the ionization efficiency, and a high sensitive mass spectrometer and a mass spectrometric method using such a microspray column. For solving this problem, we provide a column for introducing a sample in an ionization source of a mass spectrometer (ESI/MS) being designed to ionize a sample molecule with electrospray and introduce it into an analyzer, has structural features of: (1) 0.5 μm or less in an inner diameter of a tip opening of the column; (2) 0.5 μm or more and 5 μm or less in a particle size of a column filler; and (3) fritless, a microspray column having the above (1) to (3), a mass spectrometer having such a microspray column in an ionization source, and a mass spectrometric method capable of performing a nonoflow electrospray with the microspray column.

REFERENCES:
patent: 4990740 (1991-02-01), Meyer
patent: 2004/0182818 (2004-09-01), Moon et al.
patent: 8-236063 (1996-09-01), None
patent: 11-142372 (1999-05-01), None

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