Electrophoresis capillary with agarose
First Claim
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1. A method for preparing a narrow-bore capillary tube for use in electrophoretic separations comprising the steps of:
- contacting a dilute agarose phase wit the bore of the tube to for m a precoat thereon; and
adherently filling the bore with an agarose-based analytical gel along at least a portion of the tube which is precoated with the dilute agarose phase.
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Abstract
Capillary tubes useful for performing capillary zone electrophoresis separation techniques are prepared by precoating the capillary tubes with an adhesive agent, preferably a dilute agarose phase. The analytical agarose-based media then is positioned in the tubes, where it adheres to the earlier coating. The analytical media exhibits strong structural integrity and adheres well to the capillary tubes; moreover, the media is suitable for capillary zone electrophoretic separation of biopolymers.
32 Citations
12 Claims
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1. A method for preparing a narrow-bore capillary tube for use in electrophoretic separations comprising the steps of:
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contacting a dilute agarose phase wit the bore of the tube to for m a precoat thereon; and adherently filling the bore with an agarose-based analytical gel along at least a portion of the tube which is precoated with the dilute agarose phase. - View Dependent Claims (2, 3, 4)
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5. An apparatus useful for electrophoretic separations of bipolymer solutes comprising:
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a capillary tube defining a bore surface; a precoat adherently coating at least a portion of the bore surface, the precoat including an agarose phase; and an analytical agarose-based gel adhered in the capillary, which gel is adherent to the precoat and is permeable to biopolymer solutes moving in response to sufficient electric current for separation of the biopolymers. - View Dependent Claims (6, 9)
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10. An apparatus useful for electrophoretic separations of biopolymer solutes comprising:
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a capillary tube having a bore size between about 75 μ
to about 500 μ and
defining a bore surface; and
,an agarose-based media being permeable to biopolymer solutes and disposed within the bore as a continuous gelled phase, the agarose-based media radially outwardly extending to the bore surface and adhered thereto and longitudinally extending along sufficient of the tube length to separate biopolymers substantially on the basis of charge differences, the agarose-based media being sufficiently stable as to maintain continuity when subjected to an electric field of about 300 V/cm tube length. - View Dependent Claims (7, 8, 11, 12)
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Specification