MICROCHIP, SOLVENT DISPLACEMENT METHOD USING THE MICROCHIP, CONCENTRATING METHOD, AND MASS SPECTROMETRY SYSTEM

Title:

MICROCHIP, SOLVENT DISPLACEMENT METHOD USING THE MICROCHIP, CONCENTRATING METHOD, AND MASS SPECTROMETRY SYSTEM

Document Type and Number:

WIPO Patent Application WO/2004/050220

Kind Code:

A1

Abstract:

A mass spectrometry system capable of recovering specific components from a specimen in high densities and performing a solvent displacement. A separation device (100) is installed on a microchip and incorporates a flow passage (112) for flowing the specific components therein. The flow passage (112) is formed of a specimen inlet flow passage (300), a filtrate discharge flow passage (302) branched from the specimen inlet flow passage (300), and a specimen recovering part (308) branched from the specimen inlet flow passage. A filter (304) stopping the passage of the specific components is installed at the inlet of the filtrate discharge flow passage (302) from the specimen inlet flow passage (300). A damming area (hydrophobic area) (306) stopping the entry of liquid specimen and allowing the liquid specimen to be passed by an external force of a specified value or more provided thereto is installed at the inlet of the specimen recovering part (308) from the specimen inlet flow passage (300).

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Inventors:

BABA MASAKAZU (JP)
SANO TORU (JP)
IIDA KAZUHIRO (JP)
KAWAURA HISAO (JP)
IGUCHI NORIYUKI (JP)
HATTORI WATARU (JP)
SOMEYA HIROKO (JP)
ASOGAWA MINORU (JP)

Application Number:

PCT/JP2003/015256

Publication Date:

June 17, 2004

Filing Date:

November 28, 2003

Export Citation:

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Assignee:

NEC CORP (JP)
BABA MASAKAZU (JP)
SANO TORU (JP)
IIDA KAZUHIRO (JP)
KAWAURA HISAO (JP)
IGUCHI NORIYUKI (JP)
HATTORI WATARU (JP)
SOMEYA HIROKO (JP)
ASOGAWA MINORU (JP)

International Classes:

B01D67/00; B01D71/02; B03C5/00; G01N1/40; (IPC1-7): B01D57/00; B01D57/02; B03C5/00; B01D69/00; G01N27/26; G01N37/00; G01N1/40

Domestic Patent References:

WO1996012540A1	1996-05-02
WO1989006280A1	1989-07-13

Foreign References:

JPH11311616A	1999-11-09
JP2001281233A	2001-10-10
JPH07330797A	1995-12-19

Attorney, Agent or Firm:

Hayami, Shinji (2-17-16 Ebisu-Nish, Shibuya-ku Tokyo, JP)

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