Title:
クロマトグラフのパルスの速度を測定するための方法および装置
Document Type and Number:
Japanese Patent JP4231793
Kind Code:
B2
Abstract:
An Apparatus and method for two-stage chromatographic separation uses thermal modulation. The chromatographic column or modulation tube ( 1 ) has a loop structure such that two portions of modulation tube ( 1 ) can be thermally modulated simultaneously by at least one thermal modulation device, which device can have a cold gas source, jet tube ( 2 ), and a hot gas source, hot jet tube ( 5 ), to modulate the temperature of the portions ( 3, 4 ) of modulation tube ( 1 ).
Inventors:
Edward B. Redford Jr.
Application Number:
JP2003579954A
Publication Date:
March 04, 2009
Filing Date:
March 19, 2002
Export Citation:
Assignee:
Zoex Corporation
International Classes:
G01N30/30; G01N30/54; B01D15/08; G01N30/16; G01N30/46; G01N30/02; G01N30/32; G01N30/62
Domestic Patent References:
| JP2000171449A | ||||
| JP11044683A |
Other References:
Stephen R.Springston,Cryogenic-focusing, ohmically heated on-column trap for capillary gas chromatography,Journal of Chromatography,1990年 9月26日,Vol.517,P.67-75
Jojn B. Phillips, Derhsing Luu, and Ru-Po Lee,Thermal Desorption Modulation as a Replacement for Sample Injection in Very-Small-Diameter Gas Chromatography Capillary Columns,Journal of Chromatographic Science,1986年 9月,Vol.24, No.9,P.396-399
Jojn B. Phillips, Derhsing Luu, and Ru-Po Lee,Thermal Desorption Modulation as a Replacement for Sample Injection in Very-Small-Diameter Gas Chromatography Capillary Columns,Journal of Chromatographic Science,1986年 9月,Vol.24, No.9,P.396-399
Attorney, Agent or Firm:
Koji Onishi
Masao Onishi
Masao Onishi