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| Number | Title | Issue Date |
| 7736517 | Method and apparatus for performing planar electrochromatography at elevated pressure According to one aspect of the disclosure, there is provided an apparatus (210) for performing electrochromatography. The apparatus (210) includes a die block (222) which is movable to exert a pressure greater than atmospheric pressure on a chro... | 06/15/2010 |
| 7355038 | Phase isolation process for biomacromolecule components The present invention relates to a phase isolation process for biomacromolecule components, after pretreating the substance to be isolated: 1) adding sufficient amount of buffer (one of the compound selected from ammonium sulfate, cesium chloride, sodium sulfate, an... | 04/08/2008 |
| 7285219 | Chromatographic separation member and method There is described a chromatographic separation member including a substrate carrying on at least one surface a thin layer of a chromatographically active capture material. Also described is a chromatographic separation method for separating a component of interest ... | 10/23/2007 |
| 7279105 | Arrangement and method for performing chromatography An arrangement for performing chromatography with a mobile phase and a chromatographic bed having a stationary phase is provided. The arrangement includes a support assembly configured to support the stationary phase. The support assembly has a sealed cavity configu... | 10/09/2007 |
| 7276158 | Incision-based filtration/separation pipette tip This invention relates to a pipette tip designed to perform filtration or sample separation on the basis of one or more perforations, holes or incisions performed on the tip. Such perforation, holes or incisions are large enough to permit the passage of fluids or sm... | 10/02/2007 |
| 7245346 | Method of making an electronic display A display formed by skiving with a skiving device including at least one nozzle tip and at least one roller is described. The display has skives that are clean and neat, and has no damage to layers underlying the skived areas. ... | 07/17/2007 |
| 7223364 | Detection article having fluid control film The present invention provides a detection article including at least one fluid control film layer having at least one microstructured major surface with a plurality of microchannels therein. The microchannels are configured for uninterrupted fluid flow of a fluid s... | 05/29/2007 |
| 7112453 | Retentate chromatography and protein chip arrays with applications in biology and medicine This invention provides methods of retentate chromatography for resolving analytes in a sample. The methods involve adsorbing the analytes to a substrate under a plurality of different selectivity conditions, and detecting the analytes retained on the substrate by d... | 09/26/2006 |
| 7105339 | Retentate chromatography and protein chip arrays with applications in biology and medicine This invention provides methods of retentate chromatography for resolving analytes in a sample. The methods involve adsorbing the analytes to a substrate under a plurality of different selectivity conditions, and detecting the analytes retained on the substrate by d... | 09/12/2006 |
| 7097770 | Separation of plant oil triglyceride mixtures by solid bed adsorption A solid bed adsorptive process for separating a seed oil into two substantially pure triglyceride fractions. The process involves contacting a seed oil, such as castor oil, preferably as a concentrate, with an adsorbent in a bed, the adsorbent having a particle size... | 08/29/2006 |
| 7070684 | Electrode arrangement for generating functional field barriers in microsystems A microsystem adapted for dielectrophoretic manipulation of particles in a suspension liquid wherein the microsystem has a channel with channel walls and a longitudinal extension. An electrode arrangement is present which has at least one microelectrode on at least ... | 07/04/2006 |
| 7041216 | Chromatography column The present invention relates to a chromatography column that removes the longitudinal load from the column tube altogether and transfers it to a yoke and stanchion arrangement situated around but external to the column tube. By using the yoke/stanchion system, the ... | 05/09/2006 |
| 6904784 | Liquid chromatographic method and system To economically perform preparatory chromatography, a plurality of pumps each having a corresponding one of a plurality of pistons and a corresponding one of a plurality of cylinders are driven by one motor to draw and pump solvent simultaneously into corresponding ... | 06/14/2005 |
| 6884346 | Bonded phase photopolymerized sol-gel column and associated methods A separation column and a method of making the separation column are provided. The separation column includes a separation channel and a separation medium in the channel. The separation medium includes a porous matrix, and the porous matrix includes a support and a ... | 04/26/2005 |
| 6875348 | Separation column having a photopolymerized sol-gel component and associated methods A separation column and a method of preparing the separation column are provided. The separation column includes a separation channel and a porous matrix in the channel. The porous matrix includes a metal organic polymer, such as a photopolymer. The porous matrix ca... | 04/05/2005 |
| 6866785 | Photopolymerized sol-gel column and associated methods A separation column and a method of making the separation column are provided. The separation column includes a separation channel and fritless separation medium in the channel. The separation medium includes a porous matrix, and the porous matrix includes a metal o... | 03/15/2005 |
| 6803200 | Compositions and methods for the release of nucleic acid molecules from solid matrices The present invention relates to compositions and methods for releasing nucleic acid molecules from solid matrices. The invention further relates to compositions and methods for purifying and isolating nucleic acid molecules from biological materials such as animal ... | 10/12/2004 |
| 6787366 | Microspot test kit and method for chemical testing A method, system and kit for detecting the presence of an analyte includes placing a solution containing the analyte in a microcapillary tube and placing the microcapillary tube in contact with a layer of sorbent material so that the solution is withdrawn from the m... | 09/07/2004 |
| 6783988 | Methods for quantitative and qualitative analyses of phospholipids using one-dimensional thin layer chromatography A highly sensitive and specific method for the detection and quantification of lipids is provided. Specifically, methods for the simultaneous detection and quantification of phospholipids extracted from mammalian tissues is described. The analytical methods provided... | 08/31/2004 |
| 6762057 | Separation apparatus including porous silicon column A sample separation apparatus including a porous, or rough, capillary column. The porous capillary column includes a matrix which defines pores, and may be formed from a material such as porous silicon. Alternatively, the capillary column may have a rough surface of... | 07/13/2004 |
| 6749756 | Reaction and separation methods A method of separating compounds that includes the steps of: tagging at least a first organic compound with a first tagging moiety to result in a first tagged compound; tagging at least a second organic compound with a second tagging moiety different from the first ... | 06/15/2004 |
| 6712972 | Method for the synthesis and evaluation of porphyrins, calix (4) pyrroles and allied macrocycles The present invention provides an innovative method based on reaction cum separation on single plate concept for efficient evaluation of porphyrins, calix(4)pyrroles and allied macrocycles by in-situ synthesis from pyrrole with aromatic aldehydes and ketones over ze... | 03/30/2004 |
| 6709584 | Device for analyzing substances by means of thin layer chromatography A device for analyzing substances by thin layer chromatography comprises a solvent trough with two solvent channels, wherein two wall plates are mounted in the solvent trough, enabling thin layer plates to be arranged obliquely with respect to the horizontal in the ... | 03/23/2004 |
| 6610202 | Arrangement and method for performing chromatography An arrangement for performing chromatography with a mobile phase and a chromatographic bed having a stationary phase is provided. The arrangement includes a support assembly configured to support the stationary phase. The support assembly has a sealed cav... | 08/26/2003 |
| 6465225 | Method and device for manipulating particles in microsystems For manipulation of particles in a fluidic microsystem (15) in which the particles are moved in a predetermined reference direction in a suspension liquid, the microsystem (15) is closed off at least at its end (17a, 17b) pointing to the reference directi... | 10/15/2002 |
| 6420181 | Field microspot test method for on-site chemical testing A method, system and kit for detecting the presence of an analyte includes placing a solution containing the analyte in a microcapillary tube and placing the microcapillary tube in contact with a layer of sorbent material so that the solution is withdrawn... | 07/16/2002 |
| 6395178 | Thin porous layers for thin-layer chromatography Novel separation materials for thin layer chromatography are disclosed; these consist of a support and a separation medium layer and are obtainable by the following process steps: a) cleaning of the support; b) application of a liquid film comprising a polysil... | 05/28/2002 |
| 6340572 | Kit for the isolation, identification and quantitation of toxicants Methods for the isolation and identification of a toxicant in a sample are disclosed. Luminescent biological agents (i.e., bacteria) having sensitivity to a toxicant or an isolatable component in a sample are used to provide visually discernable zones of ... | 01/22/2002 |
| 6331254 | Methods of separation and detection Methods which employ thin layer chromatography for separating and detecting hydrophobic target molecules are particularly useful in separating biologically relevant lipids. By utilizing non-destructive detection techniques, these methods also can be adapt... | 12/18/2001 |
| 6238928 | Analytical process for testing mixtures for toxic constituents The mixture to be tested for toxic components is first separated into fractions by chromatography. The separated fractions are then contacted with luminescent microorganisms in the chromatographic system itself and the toxicity of the fractions is determi... | 05/29/2001 |
| 6174733 | Detection of pathogens using a column device with a sample containing a control Methods are disclosed for detecting the presence of at least two predetermined known materials in a test sample. At least one of the predetermined known materials is a control material. The test sample is introduced into a test column which has a snare fo... | 01/16/2001 |
| 6017722 | Luminous bacteria and methods for the isolation, identification and quantitation of toxicants Methods for the isolation and identification of a toxicant in a sample are disclosed. Luminescent biological agents (i.e., bacteria) having sensitivity to a toxicant or an isolatable component in a sample are used to provide visually discernable zones of ... | 01/25/2000 |
| 5868938 | Chiral stationary phases for chromatographic separation of optical isomers The invention relates to chiral polymers which are bonded to a support and have improved properties, a process for the preparation of these materials and their use as chiral stationary phases in the chromatograhic separation of optical isomers, in particu... | 02/09/1999 |
| 5863437 | Method and device for the separation of a mixture The invention pertains to a method and device for separating a mixture having at least two components, wherein a separation phase is impacted by the mixture to be separated and then the separation phase loaded with the mixture is eluted with at least one ... | 01/26/1999 |
| 5843312 | Chromatography material A chromatography material is described for separation of nucleic acid mixtures in which a support is converted with a silanization reagent, in which the silanization reagent has a reactive group converted with silanization reagent, in which the silanizati... | 12/01/1998 |
| 5814225 | Iodinated gel filtration media for disinfecting protein solutions A process for disinfecting protein solutions operates by flowing the solutions through a bed of iodinated organic polymer that acts as a gel filtration material. The preferred types of gel filtration material is Sephadex brand cross-linked dextrans, eithe... | 09/29/1998 |
| 5773576 | Coded thin layer chromatography support Support materials for thin-layer chromatography characterized by a marker code applied using laser light.... | 06/30/1998 |
| 5738790 | Composite membranes for solid phase extractions and reactions A solid phase extraction or chromatographic medium comprises a porous nonwoven fibrous matrix comprising at least one of polytetrafluoroethylene and blown microfibers, and sorptive or reactive hydrophobic siliceous molecular sieve particulates enmeshed in... | 04/14/1998 |
| 5728301 | Apparatus and method for thin layer chromatography A method for spectral analysis of mixtures is disclosed using thin layer chromatography for separation of the components of the mixture followed by taking FTIR spectroscopic readings along the vertical length of the coated support.... | 03/17/1998 |
| 5650506 | Modified glass fiber membranes useful for DNA purification by solid phase extraction The present invention relates to modified glass fiber membranes which exhibit sufficient hydrophilicity and sufficient electropositivity to bind DNA from a suspension containing DNA and permit elution of the DNA from the membrane. Generally, the hydrophil... | 07/22/1997 |
