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1. (WO1992010748) GAS CHROMATOGRAPHY METHOD AND APPARATUS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/010748 International Application No.: PCT/US1990/007107
Publication Date: 25.06.1992 International Filing Date: 04.12.1990
IPC:
G01N 30/10 (2006.01) ,G01N 30/12 (2006.01) ,G01N 30/16 (2006.01) ,G01N 30/30 (2006.01)
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30
Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography
02
Column chromatography
04
Preparation or injection of sample to be analysed
06
Preparation
10
using a splitter
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30
Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography
02
Column chromatography
04
Preparation or injection of sample to be analysed
06
Preparation
12
by evaporation
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30
Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography
02
Column chromatography
04
Preparation or injection of sample to be analysed
16
Injection
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30
Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography
02
Column chromatography
26
Conditioning of the fluid carrier; Flow patterns
28
Control of physical parameters of the fluid carrier
30
of temperature
Applicants:
THE DOW CHEMICAL COMPANY [US/US]; 2030 Dow Center Abbott Road Midland, MI 48640, US
Inventors:
HILLER, Joseph, F.; US
McCABE, Terrence; US
MORABITO, Paul, L.; US
Agent:
JUHL, Nis, H.; The Dow Chemical Company Patent Department P.O. Box 1967 Midland, MI 48641-1967, US
Priority Data:
Title (EN) GAS CHROMATOGRAPHY METHOD AND APPARATUS
(FR) PROCEDE ET DISPOSITIF DE CHROMATOGRAPHIE EN PHASE GAZEUSE
Abstract:
(EN) An improved gas chromatography apparatus and method including an injection valve (6), a retention gap (8), an analytical column (14) and a detector (16), each communicating in series, the column being heated by a column oven (32), the improvement being a separate retention gap heater (10) for separately heating the retention gap.
(FR) Procédé et dispositif améliorés de chromatographie en phase gazeuse, comprenant une soupape d'injection (6), un intervalle de rétention (8), une colonne d'analyse (14) et un détecteur (16) communiquant en série, la colonne étant chauffée par un four de colonne (32), et l'amélioration consistant en un réchauffeur séparé (10) servant à réchauffer séparément ledit intervalle de rétention.
Designated States: CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0513086CA2075039DE000069023513