Water management device for gas chromatography sample concentrat

Gas separation: apparatus – Chromatography type apparatus – With control means responsive to sensed condition

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96104, 96105, B01D 1508

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active

055826334

ABSTRACT:
A water management system removes water vapor from the analyte slug that is desorbed from the trap. The water management system includes a device having a passage through which the volatile organic chemicals and water pass, the passage being designed to remove water vapor by swirling action on the stream. The amount of water removed is more than can be accounted for by simple condensation. The invention also includes the adjustment of the temperature of the water management device during the sample concentration cycle to prevent undesired condensation prior to desorption.

REFERENCES:
patent: 2494427 (1950-01-01), Bidwell et al.
patent: 2705053 (1955-03-01), Morris
patent: 2757581 (1956-08-01), Freeman et al.
patent: 2813010 (1957-11-01), Hutchins
patent: 3063286 (1962-11-01), Nerheim
patent: 3168823 (1965-02-01), Reinecke et al.
patent: 3176501 (1965-04-01), Briggs
patent: 3225520 (1965-12-01), Burow
patent: 3529405 (1970-09-01), Ashbrook
patent: 3728845 (1973-04-01), Haruki et al.
patent: 3735565 (1973-05-01), Gilby et al.
patent: 3800946 (1974-04-01), Reid et al.
patent: 3964884 (1976-06-01), Judith et al.
patent: 3999963 (1976-12-01), Ririe, Jr.
patent: 4089207 (1978-05-01), Patton
patent: 4098592 (1978-07-01), Prescott et al.
patent: 4180389 (1979-12-01), Paul
patent: 4201555 (1980-05-01), Tkach
patent: 4231256 (1980-11-01), Chapman et al.
patent: 4510056 (1985-04-01), Frykhult et al.
patent: 4617031 (1986-10-01), Suh et al.
patent: 4666476 (1987-05-01), Reeve et al.
patent: 4756725 (1988-07-01), Badey et al.
patent: 4805441 (1989-02-01), Sides et al.
patent: 4849179 (1989-07-01), Reinhardt et al.
patent: 4998433 (1991-03-01), Stumpf et al.
patent: 5014541 (1991-05-01), Sides et al.
patent: 5028243 (1991-07-01), Rubey
patent: 5036710 (1991-08-01), King
patent: 5048322 (1991-09-01), Hiller et al.
patent: 5065614 (1991-11-01), Hartman et al.
patent: 5084189 (1992-01-01), Richter
patent: 5250093 (1993-10-01), Jiang et al.
patent: 5358557 (1994-10-01), Jiang et al.
patent: 5470380 (1995-11-01), Jiang et al.
Giese, R. W., et al.; Adsorption/thermal desorption for the determination of volatile organic compounds in water; Journal of Chromatography; 537:321-328 (1991).
Rosen, Michael Elliott; The Development of Adsorption/Thermal Desorption for the Determination of Tracc Levels of Volatile Organic Compounds in Groundwater; Dissertation submitted to the faculty of the Oregon Graduate Center in partial fulfillment of the requirements for the degree Doctor of Philosophy in Environmental Science and Engineering; (1988) pp Vi-XXV and 1-70 and 245-252.
Don't Water Down Your Analysis! Get A+ in Purge & Trap Performance: Tekmark.RTM. 2000Plus with the New Moisture Control Module, Tekmar Company, Cincinnati, Ohio (1991) pp. 1-4.
Tekmar, Optic Injector Price List, pp. 1-2 (1994).
Tekmar Company, An Optical View of Programmed Temperature Vaporization; Cincinnati, Ohio undated p. 1.
Tekmar Company, Specifications and Pricing, Optic and Optic 600 Specification; Cincinnati, Ohio p. 1 undated.
Applications and Technical Notes; pp. 1-9 undated.
Janssen, H. G. et al., Chromatography Technical Notes No. 1, Large volume sample introduction in Capillary Gas Chromatography; Ai Cambridge Ltd. Seminar, pp. 1-2 (1993).
Janssen, H. G., Chromatography Technical Notes No. 2, Selecting the Injection Mode in Capillary Chromatography; Ai Cambridge Ltd. Seminar, pp. 1-4 (1993).
Wyllie, S. G., et al., Chromatography Technical Notes No. 3, Use of a temperature programmable injector in the static and dynamic headspace analysis of aroma volatiles; Riva del Garda Symposium, Italy, pp. 1-4 (1993).
Jannsen, H. G., et al., Chromatography Technical Notes No. 5, Analysing low volatility samples using high temperature PTV injection; Ai Cambridge Ltd. Seminar, pp. 1-6 (1993)
Staniewski, J. et al., Solvent Elimination Rate in Programmed Temperature Injections of Large Sample Volumes in Capillary GC; 12th Int'l. Symposium on Capillary Chromatography, Japan, pp. 1-17 (1990).
Ridgeon, P. J., A Universal Sample Introduction System for Capillary Columns; Ai Cambridge Ltd. pp. 1-4 undated.
Staniewski, J. et al., Applicability of a Programmed Temperature Injector for Large Volume Sample Introduction in Capillary GC and for LC-GC Interfacing; Fourteenth Int'l. Symposium on Capillary Chromatography, Baltimore, Maryland, pp. 654-662 (1992).
Hinshaw, J. V., GC Troubleshooting, Programmed-Temperature Inlets; IC-GC Int'l, vol. 5, No. 12, pp. 14-16 undated.
Perkins, R., The Use of PTV injection to enhance analytical Performance; Tekmar Program of Seminars, Pittcon, (1994).
Tekmar Brochure, 2000 Series Concentrator Systems . . . for Volatile Organics Analysis by Purge and Trap or Dynamic Headspace; Cincinnati, Ohio pp. 1-8 undated.
Tekmar Brochure, 3000 Purge and Trap Concentrator, Tekmar Company, Cincinnati, Ohio, pp. 1-16 undated.
Chemical Data Systems, CDS 380 Automated Purge and Trap System; Oxford, PA (1988) pp. 1-4.
Chemical Data Systems, CDS 330 GC Sample Concentrator, Programmed Cryo-Focusing Optimized for Direct Capillary GC; Oxford, PA (1985) pp. 1-8.
Chemical Data Systems, Model 330 Trapping Concentrator; Oxford, PA (1988) pp. 1-3.
Chemical Data Systems, Model 350/380 Autosampler; Oxford, PA (1988) p. 1.
O.I. Analytical, Efficiency of Cryo-Focusing Traps for Purge-And-Trap Gas Chromatography, Application Note 04040195; New Orleans, LA (1992) pp. 1-4.
O.I. Analytical, GC/MS Analysis of Volatiles in Less Than 15 Minutes!, Application Note 05250295; ChromConnection Newsletter (Jun., 1993) pp. 1-4.
O.I. Analytical Applications News 1992, Newsworthy, No. 0430493, Use of a Cryo-Focusing Module.TM. as a Water Management Tool in Purge-And-Trap/GC/MS Analysis; New Orleans, La., pp. 1-25 (1992).
Allen K. Vickers, An Automated Purge-and-Trap System for Analyzing Volatile Organic Compounds in Drinking Water; O. I. Analytical Applications News 1991, Newsworthy, No. 02211091 (1991) p. 1.
Alltech Environmental Update, Volatile Organics Analysis: Building a State-of-the-Art Purge and Trap GC/MS System; O. I. Analytical Applications News 1991, Newsworthy, No. 02970691 (1991) pp. 1-8.
Ho, J. S., et al., A Fully Automated Purge-and-Trap System for Analyzing Volatile Organics in Drinking Water; O. I. Analytical Applications News 1991, Newsworthy, No. 03330493 (1991) p. 1.
O.I. Analytical Applications News 1991, Newsworthy, No. 03750991, The Compatibility of the OI Analytical Purge and Trap with the HP 5971A MSD (1991) pp. 1-4.
J & W Scientific, GC Environmental Application Note#E3, EPA 524.2 (Revision 4) With Extraordinary Speed and Resolution, 0 to 84 in 27.2!(1994) pp. 1-4.
Tekmar.RTM. Model 1000 Capillary Interface; Tekmar Company, Cincinnati, Ohio pp. 1-4 undated.
Tekmar, What is OPTIC?, Advantages of OPTIC; Tekmar Company, Cincinnati, Ohio p. 1 undated
Tekmar, Primary Users, Applications; Tekmar Company, Cincinnati, Ohio p. 1 undated.
Tekmar 3.times.5 card, "Can You Make The Grade?", Purge and Trap Report Card; Tekmar Company, Cincinnati, Ohio pp. 1 & 2 undated.
Westendorf, R. G., Design and performance of a microprocessor-based purge and trap concentrator; American Laboratory, pp. 66-73 (1987).
Westendorf, R., Managing Water in Purge & Trap GC/MS; Environmental Lab, pp. 36-39 (Aug./Sep. 1992).
Applications News 1992, Newsworthy, No. 0420493, OI Analytical Model 4560 Sample Concentrator--Cyclone Water Management.TM. Systems; O.I. Analytical, College Station, Texas (1992) pp. 1-2.
Don't Water Down Your Analysis!, Tekmar 2000 Plus Purge and Trap.TM. Concentrator with Moisture Control Module; Tekmar Company, Cincinnati, Ohio p. 56 undated.
Twachtman, J., Form Letter Regarding 2000 Series; Tekmar Company, Cincinnati, Ohio (Apr., 1992) p. 1.
Don't Water Down Your Analysis!, Get A+ in Purge & Trap Performance; Tekmar.RTM. 2000 Plus with the New Moisture Control Module; Tekmar Company, Cincinnati, Ohio pp. 1 & 2 undated
Sensel, A. K., et al., Comparison of a Narrow Bore Column with a Cryofocusing Module.TM. and a Wide Bore Column with Jet Separator for EPA Method 524.2; 1991 Pittsburgh Conference, Tekmar Company (1991) pp. 1-16.
Applications News 1

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