Method for the accelerated dialytic recovery of foreign...

Details Method for the accelerated dialytic recovery of foreign... Method for the accelerated dialytic recovery of foreign...

2003-04-25

2008-11-11

Fortuna, Ana M (Department: 1797)

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

C210S638000, C210S644000, C210S908000, C210S909000, C210S502100, C096S153000, C096S413000

Reexamination Certificate

active

07449115

ABSTRACT:
The invention relates to a dialysis method of recovering foreign substances, particularly low-molecular weight inorganic and/or organic substances, from semipermeable membrane of varying length and dimensions, using a PLE (pressurized liquid extraction) apparatus. The membranes are preferably in the form of a tube, for example semipermeable membrane devices (SPMDs) which, in the form of passive samplers, accumulate foreign substances/pollutants on an absorbent or adsorbent.

REFERENCES:
patent: 4269804 (1981-05-01), Kring
patent: 5098573 (1992-03-01), Huckins et al.
patent: 5395426 (1995-03-01), Huckins et al.
patent: 6226852 (2001-05-01), Gundel et al.
patent: 2006/0086665 (2006-04-01), Wenzel et al.
Huckins et al: “Polymeric Film Dialysis in Organic Solvent Media for Cleanup of Organic Contaminants.” J. Assoc. Off. Anal. Chem. (vol. 73, No. 2, 1990), pp. 290-293+.
Huckins et al.: “Lipid-Containing Semipermeable Membrane Devices for Monitoring Organic Contaminants in Water.” Environ. Sci. Technol. 1992, pp. 2489-2496.
Richard Brown: “Monitoring the Ambient Environment With Diffusive Samplers Theory and Practical Considerations.” J. Environ. Monit., 2000, pp. 1-9.
Schlusener M P et al: “Determination of Antibiotics From Soil by Pressurized Liquid Extraction and Liquid Chromatography-Tandem Mass Spectrometry”, Journal of Chromatography A, Elsevier Science, NL, vol. 1003, NR. 1-2, pp. 21, 28.

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