Title:
MODULATOR FOR GASCHROMATOGRAPHY
Document Type and Number:
WIPO Patent Application WO2003078999
Kind Code:
A3
Abstract:
The invention concerns a modulator for use in gas chromatographic analyses, specially analyses in two-dimensional gas chromatography, able to alternatively trap and release fractions of solutes in a section of a capillary column inside a gas chromatographic oven, of the type including at least one nozzle disposed in such a way as to spray at least one jet of cryogenic gas on the outside of said section of capillary column. Said nozzle is provided with relative movement as regards said column section, at a controlled speed, at least in the same direction of elution of the analysts inside the column.
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Inventors:
ZILIOLI GIANCINTO (IT)
Application Number:
PCT/IB2003/000846
Publication Date:
July 22, 2004
Filing Date:
March 10, 2003
Export Citation:
Assignee:
THERMO FINNIGAN ITALIA S P A (IT)
ZILIOLI GIANCINTO (IT)
ZILIOLI GIANCINTO (IT)
International Classes:
G01N30/46; G01N30/62; (IPC1-7): G01N30/46
Domestic Patent References:
| WO1998021574A1 | 1998-05-22 |
Foreign References:
| US5929321A | 1999-07-27 |
Other References:
KINGHORN R M ET AL: "COMPREHENSIVE TWO-DIMENSIONAL GAS CHROMATOGRAPHY USING A MODULATINGCRYOGENIC TRAP", JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY, WILEY VCH, WEINHEIM, DE, vol. 21, no. 11, 1 November 1998 (1998-11-01), pages 620 - 622, XP000799189, ISSN: 0935-6304
MARRIOTT P ET AL: "Cryogenic solute manipulation in gas chromatography - the longitudinal modulation approach", TRAC, TRENDS IN ANALYTICAL CHEMISTRY, ANALYTICAL CHEMISTRY. CAMBRIDGE, GB, vol. 18, no. 2, February 1999 (1999-02-01), pages 114 - 125, XP004155356, ISSN: 0165-9936
KINGHORN R M ET AL: "DESIGN AND IMPLEMENTATION OF COMPREHENSIVE GAS CHROMATOGRAPHY WITH CRYOGENIC MODULATION", JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY, WILEY VCH, WEINHEIM, DE, vol. 23, no. 3, March 2000 (2000-03-01), pages 245 - 252, XP000954232, ISSN: 0935-6304
KINGHORN R M ET AL: "ENHANCEMENT OF SIGNAL-TO-NOISE RATIOS IN CAPILLARY GAS CHROMATOGRAPHY BY USING A LONGITUDINALLY MODULATED CRYOGENIC SYSTEM", JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY, WILEY VCH, WEINHEIM, DE, vol. 21, no. 1, 1998, pages 32 - 38, XP000750455, ISSN: 0935-6304
J. BEENS ET AL.: "moving cryogenic modulator for the comprehensive two-dimensional gas chromatography (gc x gc) of surface water contaminants", JOURNAL OF MICROCOLUMN SEPARATIONS, vol. 13, no. 3, 2001, PROVO, UT, US, pages 134 - 140, XP008021098
W. BERTSCH: "two-dimensional gas chromatography. concepts,instrumentation, and applications - part 2: comprehensive two-dimensional gas chromatography", JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY., vol. 23, no. 3, 2000, WILEY VCH, WEINHEIM., DE, pages 167 - 181, XP001164221, ISSN: 0935-6304
MARRIOTT P ET AL: "Cryogenic solute manipulation in gas chromatography - the longitudinal modulation approach", TRAC, TRENDS IN ANALYTICAL CHEMISTRY, ANALYTICAL CHEMISTRY. CAMBRIDGE, GB, vol. 18, no. 2, February 1999 (1999-02-01), pages 114 - 125, XP004155356, ISSN: 0165-9936
KINGHORN R M ET AL: "DESIGN AND IMPLEMENTATION OF COMPREHENSIVE GAS CHROMATOGRAPHY WITH CRYOGENIC MODULATION", JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY, WILEY VCH, WEINHEIM, DE, vol. 23, no. 3, March 2000 (2000-03-01), pages 245 - 252, XP000954232, ISSN: 0935-6304
KINGHORN R M ET AL: "ENHANCEMENT OF SIGNAL-TO-NOISE RATIOS IN CAPILLARY GAS CHROMATOGRAPHY BY USING A LONGITUDINALLY MODULATED CRYOGENIC SYSTEM", JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY, WILEY VCH, WEINHEIM, DE, vol. 21, no. 1, 1998, pages 32 - 38, XP000750455, ISSN: 0935-6304
J. BEENS ET AL.: "moving cryogenic modulator for the comprehensive two-dimensional gas chromatography (gc x gc) of surface water contaminants", JOURNAL OF MICROCOLUMN SEPARATIONS, vol. 13, no. 3, 2001, PROVO, UT, US, pages 134 - 140, XP008021098
W. BERTSCH: "two-dimensional gas chromatography. concepts,instrumentation, and applications - part 2: comprehensive two-dimensional gas chromatography", JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY., vol. 23, no. 3, 2000, WILEY VCH, WEINHEIM., DE, pages 167 - 181, XP001164221, ISSN: 0935-6304
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