Pulsed field capillary electrophoresis
First Claim
1. Apparatus for separating and detecting a plurality of molecular species of a sample in conductive medium, comprising:
- a capillary tube containing a conductive medium including a sieving matrix, said tube having a cross-sectional dimension of not more than 500 micrometers;
means for introducing said sample into said conductive medium-filled capillary tube;
means for applying a pulsed electric field across said conductive medium-filled capillary tube, between the ends thereof;
said pulsed electric field enhancing the separation of said plurality of molecular species of said sample as said sample migrates through said sieving matrix contained within said capillary tube; and
means for detecting said plurality of molecular species of said sample as said plurality of molecular species migrate within said capillary tube.
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Abstract
Apparatus and method for conducting electrophoresis in a capillary tube under the influence of a pulsed electric field. Apparatus for separating and detecting molecular species of a sample in a conductive medium includes a capillary tube for containing conductive medium, means for introducing a sample into a conductive medium-filled capillary tube, means for applying a pulsed electric field across the conductive medium-filled capillary tube between its ends, and means for detecting constituent molecular species of a sample in a conductive medium-filled capillary tube as they traverse the tube. A method for separating and detecting molecular species of a sample in a conductive medium includes the steps of introducing the sample into a capillary tube filled with conductive medium, applying a pulsed electric field of up to 500 volts/centimeter between the ends of the capillary, and detecting the constituent molecular species of the sample as they traverse the capillary.
53 Citations
22 Claims
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1. Apparatus for separating and detecting a plurality of molecular species of a sample in conductive medium, comprising:
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a capillary tube containing a conductive medium including a sieving matrix, said tube having a cross-sectional dimension of not more than 500 micrometers; means for introducing said sample into said conductive medium-filled capillary tube; means for applying a pulsed electric field across said conductive medium-filled capillary tube, between the ends thereof;
said pulsed electric field enhancing the separation of said plurality of molecular species of said sample as said sample migrates through said sieving matrix contained within said capillary tube; andmeans for detecting said plurality of molecular species of said sample as said plurality of molecular species migrate within said capillary tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for separating and detecting a plurality of molecular species of a sample in conductive medium, comprising:
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introducing said sample into a capillary tube having a cross-sectional dimension of not more than 500 micrometers, and filled with conductive medium including a sieving matrix; applying a pulsed electric field of up to 500 volts per centimeter across said capillary tube, between the ends thereof;
said pulsed electric field enhancing the separation of said plurality of molecular species of said sample as said sample migrates through said sieving matrix contained within said capillary tube; anddetecting said plurality of molecular species of said sample as said plurality of molecular species migrate within said capillary tube. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification