The Doshisha

Shimadzu Corporation

Motoi Wada

Hidenori Takahashi

Tadashi Ohachi

Osamu Ariyada

Yuji Shimabukuro

Nobuhiko Yamabe

An analytical device includes: a reaction unit into which an ion derived from a sample component is introduced; a radical generation unit that generates a radical by vacuum discharge and comprises a raw material introduction chamber into which a plasma raw material is introduced; a connection part that introduces the radical generated in the radical generation unit into a vacuum chamber, the vacuum chamber having a pressure lower than a pressure of the raw material introduction chamber and being connected to the reaction unit; and a separation unit that separates a generated ion generated by a reaction with the radical introduced via the connection part into the reaction unit according to m/z and/or ion mobility, wherein an inner diameter of a cross section of the connection part is equal to or less than 20 millimeters.

Analytical device

An ion analyzer that generates product ions from precursor ions derived from a sample component and analyzes the product ions includes a reaction chamber () into which the precursor ion is introduced, a radical generation chamber (), a material gas supply source () configured to introduce material gas into the radical generation chamber (), a vacuum evacuator () configured to evacuate the radical generation chamber (), a vacuum discharge unit () configured to generate a vacuum discharge in the radical generation chamber (), a radical irradiation unit () configured to irradiate an inside of the reaction chamber () with radicals generated from the material gas in the radical generation chamber (), and a separation and detection () configured to separate and detect product ions generated from the precursor ion by reaction with the radicals according to at least one of a mass-to-charge ratio and ion mobility.

Ion analyzer

An atomic flux measurement device for measuring the amount of dissociated atomic flux produced by discharge and emitted from a plasma generation cell into a vacuum camber. The atomic flux measurement device includes a counter electrode body including a pair of first and second sheet-like electrodes that are arranged substantially parallel to each other with a predetermined spacing between them, a direct-current power supply configured to maintain the first sheet-like electrode at a negative potential so that atoms attached to the inner surface of the sheet-like electrode undergo self-ionization and to apply a direct-current voltage between the first and second sheet-like electrodes so that a current flows between the first and second sheet-like electrodes, and a direct-current ammeter configured to measure a current flowing due to electrons emitted by the self-ionization of the dissociated atoms attached to the inner surface of the first sheet-like electrode.

Growing community of inventors

Nara, Japan

Motoi Wada