Matches 451 - 488 out of 488 < 1 2 3 4 5 6 7 8 9 10


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5569366 Fluorescent labelled carbohydrates and their analysis  
Processes for the electrophoretic analysis of monosaccharides and/or polysaccharides are disclosed. The processes generally first include providing a composition having derivatized mono and/or...
5560811 Capillary electrophoresis apparatus and method  
This invention involves method and apparatus for multiplexing electrophoresis analysis. An array of samples in multi well plates are simultaneously transferred to an array of electrophoresis...
5545302 Suppression of electroendosmosis during electrophoresis in gel-free polymer media by use of charged polymers  
The phenomenon of electroendosmosis which occurs in electrophoretic separations and interferes with the efficiency, accuracy and reproducibility of the separations, is suppressed by the inclusion...
5545303 System for analyzing the concentration of a number of different ions in a watery solution  
System for analyzing the concentration of a number of different ions in a watery solution, using a capillary zone electrophoresis apparatus comprising a capillary tube extending between an input...
5536382 Capillary electrophoresis assay method useful for the determination of constituents of a clinical sample  
Methods are provided for the analysis of constituents of human biological fluids using capillary electrophoresis. A clinical sample is mixed with a labeled reagent which specifically binds the...
5516698 Methods and apparatus allowing sequential chemical reactions  
A first reactant is immobilized i.e. in a porous matrix (50), adjacent a sample electrode (46) within a reaction chamber. Energizing of the electrode (46) electrophoretically attracts a mobile...
5492834 Method of sample preparation for urine protein analysis with capillary electrophoresis  
Processes are provided for pretreating body fluid compositions and subsequently analyzing the pretreated body fluid compositions for analytes of interest. Processes for pretreating the...
5480526 Methods for the desalting of biological samples: a simple approach to eliminate disturbances in isoelectric focusing caused by the presence of salts  
The present invention provides new methods for desalting samples of ionic polymers or weak electrolytes, preferable ampholytes (e.g., peptides, proteins and glycoconjugates) or, compounds which...
5472584 Method and apparatus for improved detection of ionic species by capillary electrophoresis  
Apparatus and methods are provided for increasing the sensitivity of detection of ionic species separated by capillary electrophoresis. The apparatus includes capillary electrophoretic separating...
5453163 Electrokinetic packing of capillary columns  
Capillary columns are packed using electroosmotic flow (EOF) induced by an electrical double layer on the internal wall of a fused silica capillary and the electrophoretic mobility of...
5374527 High resolution DNA sequencing method using low viscosity medium  
A DNA sequencing method for use in sequencing a DNA target sequence up to 300 bases, preferably up to 500 bases or greater in length, by electrophoretically separating a mixture of single-stranded...
5346599 Capillary zone electrophoretic detection of biological thiols and their S-nitrosated and oxidized derivatives  
Individual thiols present in a biological sample are separated and identified using capillary electrophoresis. S-nitrosated and oxidized derivatives of thiols are also detected using capillary...
5332480 Capillary bed electrophoresis  
A capillary bed electrophoresis device for separating and collecting large-scale electrophoretic samples is disclosed. The invention relates to an improvement in the anticonvective packing and...
5310463 On-column junction for capillary columns  
An electrophoretic or chromatographic separation capillary containing a fluid defines a bore therein through which a sample travels and separates into components. The tube has a side wall defining...
5296114 Electrophoretic separating device and electrophoretic separating method  
In an electrophoretic separating device, a channel defining a separating path is constructed in the form of a closed loop. A sample to be separated is introduced via a feed opening into an...
5284558 Electrophoresis-based sequencing of oligosaccharides  
The electrophoretic isolation and monosaccharide sequence determination of a neutral or weakly acidic oligosaccharide species of interest are disclosed. A labeling compound and a charged group are...
5259939 Capillary electrophoresis buffer  
Disclosed herein is a dynamic coating buffer useful in the analysis of samples by open-tube capillary electrtophoretic methods using untreated fused silica capillary columns. The dynamic coating...
5228960 Analysis of samples by capillary electrophoretic immunosubtraction  
Disclosed herein are methodologies for the Capillary Electrophoretic Immunosubtraction ("CEI") of samples. In a preferred embodiment, CEI of a sample comprising constituent parts to be separated...
5209834 Ordered transport and identification of particles  
A method and apparatus are provided for application of electrical field gradients to induce particle velocities to enable particle sequence and identification information to be obtained. Particle...
5202006 Analysis of hemoglobin variants by capillary zone electrophoresis  
Disclosed herein are buffers and methodologies for the capillary zone electrophoretic analysis of hemoglobin and the variants of hemoglobin. In a particularly preferred embodiment, the buffer...
5192405 Process for effecting high efficiency separations by capillary electrophoresis  
Capillary electrophoresis is effected by introducing into a capillary a buffer solution a zwitterion composition comprised of substantially equal numbers of positive and negative charges when the...
5183542 Apparatus and method for separating zirconium isotopes using balanced ion electromigration  
Both a method and apparatus for separating zirconium isotopes by balanced ion migration in a counterflowing electrolyte are disclosed herein. In the method of the invention, zirconium chloride is...
5151164 Enhanced capillary zone electrophoresis and apparatus for performance thereof  
Capillary zone electrophoresis is enhanced by the application of an electric field across the interior of the capillary tube. This external electric field is applied through a conductive member at...
5147517 Method of capillary electrophoresis  
The method of capillary electrophoresis of the present invention is carried out using an electrophoretic buffer containing an ungelled agarose polymer, wherein the agarose polymer concentration...
5139630 Identification of sample constituents utilizing capillary electrophoresis  
External markers and method for the identification of protein-and-peptide-containing samples utilizing capillary electrophoresis analysis. As disclosed, at least two external markers are added to...
5126025 Method and apparatus for effecting capillary electrophoresis fraction collection on a membrane  
A sample is injected into a capillary tube of a capillary electrophoresis apparatus. A sample solute on a porous layer is positioned in contact with an entrance end of the capillary tube and...
5120413 Analysis of samples utilzing capillary electrophoresis  
Method and electrolyte buffer useful in the analysis of samples comprising glycoproteins by capillary zone electrophoresis. The buffer comprises at least one agent capable of complexing with sugar...
5110424 Nucleic acid fractionation by counter-migration capillary electrophoresis  
A method of fractionating nucleic acid fragments is disclosed. The method is based on counter migration of the fragments in an upstream direction through a polymer solution which is moving by...
5110431 On-capillary gap junction for fluorescence detection in capillary electrophoresis  
A junction reactor that aligns a pair of capillaries substantially collinearly, end-to-end that allows a small gap to be produced between these two ends. An applied voltage difference between the...
5110434 Use of zwitterions to mobilize isoelectrically focused ampholyte zones  
Ampholytic solute zones which have been stabilized by isoelectrical focusing in a separation medium such as a capillary are mobilized by the introduction of a relatively large quantity of...
5089111 Electrophoretic sieving in gel-free media with dissolved polymers  
Separation of sample ions on the basis of molecular size is achieved by electrophoresis in an aqueous solution containing a dissolved non-crosslinked polymer. The polymer has a molecular weight...
5084150 Selective high performance electrokinetic separations employing the surface of moving charged colloidal particles  
An electrokinetic method for separating molecular species employs the surface of moving charged colloidal particles in a buffered dispersing medium, in a process which combines electrophoresis and...
5066382 Thermal control for capillary electrophoresis apparatus  
An electrophoresis instrument includes a capillary tube mounted in an air cooled cartridge. The cartridge also supports a spherical lens which is part of the optical detection apparatus. The...
4906344 Thermal technique for bulk fluid movement in capillary electrophoresis  
Bulk fluid movement in a capillary electrophoresis system is achieved by imposing a temperature change on either a portion of the capillary or a bulb joined to the capillary at one end. The...
4842701 Combined electrophoretic-separation and electrospray method and system  
A system and method for analyzing molecular constituents of a composition sample includes: forming a solution of the sample, separating the solution by capillary zone electrophoresis into an...
4217193 Method and apparatus for isoelectric focusing without use of carrier ampholytes  
An ampholyte is purified by being enclosed in a capillary system forming a convection-free zone, direct current being passed through said zone. The electrolyte contains at least one buffering ion...
4130470 Method for generating a pH-function for use in electrophoresis  
Method for changing the pH value of a compound used in electrophoresis which comprises the generating of the pH-function along at least part of the separation path from the protolysis equilibrium...
3649499 METHOD FOR ESTABLISHING THE ZONES OCCURRING IN ELECTROPHORESIS AND FOR THEIR QUANTITATIVE DETERMINATION  

Matches 451 - 488 out of 488 < 1 2 3 4 5 6 7 8 9 10