Massenspektrometer

Details

Veröffentlichungs-Nr.

EP2450942

Aktenzeichen

EP11188188

Anmeldetag

8. November 2011

Veröffentlichung

6. November 2019

Erteilung

6. November 2019

Rechtsraum

EP

IPC

H01J49/24H01J49/04H01J49/10H01J49/00

Abstract

A mass spectrometer (100) of reduced size and weight is provided which is capable to conduct highly accurate mass spectroscopy. The mass spectrometer (100) includes an ion source (101) adapted to ionize gas (23) flowing in from outside in order to ionize a measurement sample (4) and a mass spectroscopy section (102) for separating the ionized measurement sample (4). The ion source (101) has its interior reduced in pressure by differential pumping from the mass spectroscopy section (102) and ionizes the gas (23) when the interior pressure rises as it inhales the gas (23), and the mass spectroscopy section (102) separates the ionized measurement sample (4) when its interior pressure falls after inhale of the gas (23). The mass spectrometer (100) may further include a restriction device (9) for suppressing a flow rate of the gas (23) the ion source (101) inhales and an open/close device (8), e.g. a pulse valve, for opening and closing a flow of the gas (23) the ion source (101) inhales.

Anmelder

Firmen

Hitachi High-Tech Corporation
Hitachi High-Technologies Corporation

Land

🇯🇵 Japan

Fachgebiete