Measuring and testing – Gas content of a liquid or a solid – By vibration
Patent
1991-07-17
1992-08-25
Noland, Tom
Measuring and testing
Gas content of a liquid or a solid
By vibration
73 191, G01N 3318, G01N 3324
Patent
active
051408457
ABSTRACT:
The disclosure is directed to an apparatus and method for measuring the presence of a volatile constituent of a sample of ground water or soil mixed with water. In an embodiment of the apparatus, a valve system is provided, and has a plurality of branches. A recloseable and collapsible bag, preferably of the polyethylene freezer bag type, is provided for receiving the sample. The bag has a hole in a wall thereof, preferably near the top ofthe bag. A first of the branches of the valve system is air-tight coupled to the bag via the hole. A detector of the volatile constituent is coupleable to a second of the branches of the valve system. The valve system is operative, in one position thereof, to close off the first branch so as to isolate the bag, and in another position thereof, to couple the first and second branches so that the detector can communicate with the bag.
REFERENCES:
patent: 3150516 (1964-09-01), Linnenbom
patent: 3544273 (1970-12-01), McConnaughey
patent: 3768302 (1973-10-01), Barringer
patent: 3934453 (1976-01-01), Hessen
patent: 4112736 (1978-09-01), Wheldon et al.
patent: 4585060 (1986-04-01), Bernardin et al.
patent: 4709577 (1987-12-01), Thompson
patent: 5050425 (1991-09-01), Robbins
Robbins et al., "Use of Headspace Sampling Techniques In The Field to Quantity Levels Of Gasoline Contamination In Soil And Ground Water", Proceedings of NWWA/API Conf. on Petroleum Hydrocarbons and Organic Chemicals In Ground Water, Houston, Texas, No. 17-19, 1987. pp. 307-315.
Tchobanoglous, "Water Quality" (Book) pp. 122-123 Addison-Wesley, 1985.
Mackay et al., "Rate Of Evaporation Of Low-Solubility Contaminants From Water Bodies To Atmosphere", Environmental Science & Technology, vol. 9, No. 19, 1975. pp. 1178-1180.
Drozd et al., "Headspace Determination Of Benzene In GAs-Aqueous Liquid System By the Standard Additions Method, Journal Of Chromatography", 152, 1978. pp. 55-61.
Leighton et al., "Distribution Coefficients Of Chlorinated Hydrocarbons In Dilute Air-Water Systems for Groundwater Contamination Applications", J. Chem. Eng. Data, 26, 1981.
Griffith et al., "The Method For Field Analysis Of Soils Contaminated With Aromatic Hydrocarbon Compounds", Proceedings Of Conference on Eastern Regional Ground Water Issues, Sep. 27-29, 1988. pp. 223-248.
Stolyarov, "Headspace Gas Chromatographic Determination Of Aromatic Hydrocarbons In Natural And Waste Water", Chromatographia vol. 14, No. 12, Dec. 1981. pp. 699-673.
Gossett, "Measurement Of Henry's Law Constants For C.sub.1 and C.sub.2 Chlorinated Hydrocarbons, Environ. Sci. Technol." vol. 21, No. 2, 1987. pp. 202-208.
Holbrook, "Hydrocarbon Vapor Plume Definition Using Ambient Temperature Headspace Analysis", Proceedings of NWWA/API Conf. on Petroleum Hydrocarbons and Organic Chemicals In Ground Water, Houston, Texas, Nov. 17-19, 1987. pp. 317-328.
Robbins et al. "A Field Screening Method for Gasoline Contamination using a Polyethylene Bag Sampling System"; GWMR; Fall (Oct. 12) 1989; pp. 87-97.
Noland Tom
Novack Martin
University of Connecticut
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