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Patent Searching and Data


Title:
COLUMN FOR ION CHROMATOGRAPH, SUPPRESSOR AND ION CHROMATOGRAPH
Document Type and Number:
WIPO Patent Application WO/2004/070378
Kind Code:
A1
Abstract:
A separation column for an ion chromatograph, which is packed with an organic porous ion exchanger having a three-dimensionally network structure which has an open cell cellular structure comprising macropores connected with each other and, being present in the wall between them, a mesopore having a radius of 0.01 to 50 μm, has a total pore volume of 1 to 50 ml/g, exhibits a value obtained by dividing the half width of the main peak of the pore distribution curve thereof by the radius of the peak top of the main peak of 0.5 or less, and has ion exchange groups introduced so as for the exchanger to have an ion-exchange capacity of 0.1 to 5000 μg equivalent/g-dry organic porous ion exchanger. The separation column exhibits high performance capability especially for the separation and concentration of low molecular weight ions, and thus can be used for passing a sample solution through it with a reduced pressure while retaining a high capability for ion resolution.

Inventors:
Yamanaka, Koji c/o ORGANO CORPORATION (2-8 Shinsuna 1-chom, kotoku Tokyo 31, 13686, JP)
Inoue, Hiroshi c/o ORGANO CORPORATION (2-8 Shinsuna 1-chom, kotoku Tokyo 31, 13686, JP)
Yoshida, Akiko c/o ORGANO CORPORATION (2-8 Shinsuna 1-chom, kotoku Tokyo 31, 13686, JP)
Fujita, Masashi c/o ORGANO CORPORATION (2-8 Shinsuna 1-chom, kotoku Tokyo 31, 13686, JP)
Application Number:
PCT/JP2004/000766
Publication Date:
August 19, 2004
Filing Date:
January 28, 2004
Export Citation:
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Assignee:
ORGANO CORPORATION (2-8 Shinsuna 1-chome, Koto-ku, Tokyo 31, 13686, JP)
Yamanaka, Koji c/o ORGANO CORPORATION (2-8 Shinsuna 1-chom, kotoku Tokyo 31, 13686, JP)
Inoue, Hiroshi c/o ORGANO CORPORATION (2-8 Shinsuna 1-chom, kotoku Tokyo 31, 13686, JP)
Yoshida, Akiko c/o ORGANO CORPORATION (2-8 Shinsuna 1-chom, kotoku Tokyo 31, 13686, JP)
Fujita, Masashi c/o ORGANO CORPORATION (2-8 Shinsuna 1-chom, kotoku Tokyo 31, 13686, JP)
International Classes:
B01J20/281; B01D15/08; B01D15/36; B01J20/285; B01J39/26; B01J41/20; G01N30/02; G01N30/08; G01N30/46; G01N30/88; G01N30/96; G01N30/52; (IPC1-7): G01N30/48; G01N30/02
Attorney, Agent or Firm:
Akatsuka, Kenji (Hongo Bldg, 5F 1-16, Kanda Suda-ch, Chiyoda-ku Tokyo 41, 10100, JP)
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