ELECTROSPRAY IONIZATION APPARATUS AND MASS SPECTROMETER

WIPO Patent Application WO/2016/066062

A1

An electrospray ionization apparatus for ionizing the substance to be analyzed in solution comprises an ionization chamber (1), a liquid sucker (2), one or more air ducts (3) and an ion sampling port (4). The liquid sucker (2) introduces the solution from the outlet end of the liquid sucker (2) into the ionization chamber (1) in the form of droplet, and a potential difference is maintained in a predetermined period between at least a part of the liquid sucker (2) and the surface of the ionization chamber (1) so as to charge the droplets. The one or more air ducts (3) introduce one or more air flows towards the outlet end of the liquid sucker (2) into the ionization chamber (1), and the movement direction of the air flows is at a predetermined angle with the extension direction of the liquid sucker (2). The air ducts (3) and the liquid sucker (2) are freely detachable. The opening end of the ion sampling port (4) is towards the ionization chamber (1) for introducing the ions of the substance to be analyzed in the solution into the mass spectrometer at the next stage of the electrospray ionization apparatus. The ionization apparatus with direct, rapid mass analysis, good reproducibility and without cross contamination can be realized, and the electrospray ionization can be realized on the disposable sucker having a larger tip end size without the electrode being contacting with the solution.

HUANG YUNQING (CN)
JIANG GONGYU (CN)
SUN WENJIAN (CN)

PCT/CN2015/092690

May 06, 2016

October 23, 2015

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SHIMADZU RES LAB SHANGHAI CO LTD (CN)

H01J49/04; H01J49/26

US20080083873A1	2008-04-10
US20080179511A1	2008-07-31

J.Z.M.C. PATENT AND TRADEMARK LAW OFFICE (CN)
上海光华专利事务所 (CN)

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