Title:
METHOD AND APPARATUS FOR PRE-TREATING POLYNUCLEAR AROMATIC HYDROCARBON BEFORE ANALYZING
Document Type and Number:
WIPO Patent Application WO/2005/093407
Kind Code:
A1
Abstract:
A method and an apparatus for pre-treating polynuclear aromatic hydrocarbons before analyzing. The method for pre-treating, before analyzing, nitro polynuclear aromatic hydrocarbon present in particulates exhausted from diesel engines by using a test liquid (160) formed by dissolving a specimen containing the polynuclear aromatic hydrocarbons in a solvent, a plurality of eluents (110), (120), and (130) different from the solvent and having different polarities forming the moving phase of the test liquid, and a silica gel column (170) comprises the steps of supplying the test liquid to the column by using the test liquid and the eluent with the lowest polarity, flowing polar solvents in the ascending order of polarity, and dispensing the nitro polynuclear aromatic hydrocarbon and the other polynuclear aromatic hydrocarbons.
Inventors:
SHIBATA KEIKO (JP)
Application Number:
PCT/JP2005/002401
Publication Date:
October 06, 2005
Filing Date:
February 17, 2005
Export Citation:
Assignee:
ISUZU MORTORS LTD (JP)
SHIBATA KEIKO (JP)
SHIBATA KEIKO (JP)
International Classes:
B01J20/283; G01N31/00; G01N30/06; G01N30/26; G01N30/32; G01N30/34; G01N30/80; G01N30/82; G01N30/88; G01N33/00; G01N30/02; (IPC1-7): G01N30/88; G01N30/34
Foreign References:
| JPH0694697A | 1994-04-08 | |||
| JPS5689058A | 1981-07-20 | |||
| JPH11304782A | 1999-11-05 | |||
| JP2000249633A | 2000-09-14 |
Other References:
See also references of EP 1729125A4
Attorney, Agent or Firm:
Patent, Corporate Body Dai-ichi Kokusai Tokkyo Jimusho (10-5 Shiba 4-chome, Minato-k, Tokyo 14, JP)
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