Rigaku Corporation

Hamamatsu-photonics K.k.

Yoshihiro Takata

Tadashi Arii

Satoshi Otake

Shigeki Matsuura

Shuichi Matsuo

An ionizing deviceincludes an ionization chamberhaving an ionization spacefor ionizing sample molecules A, filamentsandto have an electron impact on the sample molecules A in the ionization space, to ionize the sample molecules A, and an electric discharge tubeto irradiate the sample molecules A in the ionization spacewith ultraviolet light, to ionize the sample molecules A.

Ionizing device

A plurality of molecule components included in a gas are to be ionized at the same time by PI method. For instance, a plurality of molecule components included in a gas generated at a certain instance are accurately analyzed in real time based on PI method. A gas analyzer is provided with a gas transfer apparatus for transferring a gas generated from a sample in a sample chamber to an analyzing chamber; an ionizer for ionizing the gas; a quadruple filter for separating ions by mass/charge ratio; and an ion detector for detecting the separated ions. The ionizer is provided with an ionizing region arranged in the vicinity of a gas exhaust of the gas transfer apparatus, and a lamp for applying light on the ionizing region. Since the lamp outputs light which has light directivity lower than that of a laser beam and travels by spreading, the gas entered the ionizing region in the ionizer receives light in a wide range, and the gas components inside are ionized at the same time.

Gas analyzer

A temperature-programmed desorbed gas analyzing apparatus including a sample chamberin which a sample S is disposed, an infrared heating furnacefor heating the sample S disposed in the sample chambera measuring chamberin which gas desorbed from the sample S by heating is introduced, a turbo molecular pumpfor reducing the pressure in the measuring chambera mass spectrometerhaving a gas detection portiondisposed in the measuring chamberan intermediate pressure-reduced chamberprovided between the sample chamberand the measuring chambera first orificewhich the intermediate pressure-reduced chamberand the sample chamberintercommunicate with each other, and a second orificethrough which the intermediate pressure-reduced chamberand the measuring chamberintercommunicate with each other, and the desorbed gas occurring in the sample chamberis introduced through the first orificethe intermediate pressure-reduced chamberand the second orificeinto the measuring chamberThe pressure in the intermediate pressure-reduced chamberor the measuring chamberis controlled by pressure adjusting unit so as to be fixed.

Temperature-programmed desorbed gas analyzing apparatus

An evolved gas analysis system contains a first measurement step of heating a first sample containing measurement target material and non-measurement target material at a predetermined temperature programming rate and detecting the amount of gas evolved from the first sample; a second measurement step of heating a second sample achieved by excluding the measurement target material from the first sample at the same temperature increasing rate as the first measurement step, and detecting the amount of gas evolved from the second sample; and a correcting step of calculating the amount of gas evolved from the measurement target material on the basis of the detected data of the respective steps.

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Tachikawa, Japan

Yoshihiro Takata