Liquid purification or separation – Processes – Separating
Patent
1996-07-29
1998-10-13
Reifsnyder, David A.
Liquid purification or separation
Processes
Separating
210794, 210435, 2104935, 435 4, 435 72, 435 30, B01D 2126, C12M 300
Patent
active
058207678
ABSTRACT:
Use of a disposable filtration capsule with a non-occluded membrane filter element in the place of a standard spiral wound cartridge allows for the more rapid and quantitative filtration, recovery, and quantitation of microorganisms in liquid, particularly surface waters, well water, tap water, and the like. The capsule allows a severe reduction in the water sample size tested, substantially minimizes risks of cross-contamination, and provides a leak-proof vessel for shipment. Risk of infection of laboratory personnel and time of analysis are both reduced. Costs of measuring contamination by microorganisms such as Giardia and Cryptosporidium is lowered significantly while increasing the accuracy and dependability of the measurement.
REFERENCES:
patent: 4693985 (1987-09-01), Degen et al.
patent: 4895805 (1990-01-01), Sato et al.
patent: 5174896 (1992-12-01), Harms, II
patent: 5500134 (1996-03-01), Chahine
patent: 5527705 (1996-06-01), Mussi et al.
XP 002051714 Derwent Publication AN 93-409062 (1993).
ASTM Proposal P 229 D-19 "Proposed Test Method for Giardia Cysts and Cryptosporidium Oocysts in Low-Turbidity Water by a Fluorescent Antibody Procedure" 1992 Annual Book of ASTM Standards vol. 11.02, pp. 925-935.
Federal Register vol. 59, No. 28, pp. 6416-6427 (Feb. 10, 1994) U.S. Environmental Protection Agency.
"ELISA Technology", Encyclopedia of Microbiology, vol. 2, pp. 59-62 (1992).
"Polymerase Chain Reaction (PCR)", Douglas H. Jones, Encyclopedia of Microbiology, Ed. S, pp. 443-449, (1991).
"Indirect Fluorescent Antibody Tests and Other Immunomicroscopic Methods", Encyclopedia of Microbiology, vol. 2, pp. 163-164 (1992) J. Lederberg, Ed.
Bailey & Scott's Diagnostic Microbiology, Ellen Jo Baron, et al, pp. 1015-1018 (1994).
"Enzyme Immunoassay", James M. Conroy, et al, Encyclopedia of Microbiology, vol. 3, pp. 87-92 (1992).
Borton Noel Tod
Kane Jeffrey Francis
Pall Corporation
Reifsnyder David A.
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