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7393453 |
Method for analysis of perchlorate
A method for analyzing the content of perchlorate in a sample matrix comprising the steps of extracting the sample matrix and applying it to a reverse phase column, followed by elution with a...
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7386427 |
Method for correcting the effects of interdetector band broadening
Chromatographic separations are often characterized by multiple detectors through which the sample flows serially. As the sample flows between detectors, it becomes progressively diluted due to...
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7384546 |
Multi-layered macromolecules and methods for their use
Multi-layered macromolecules wherein the layers are covalently bonded together and wherein the macromolecules are covalently bonded to solid particulate substrates, methods for the preparation of...
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7374684 |
Method of separating components in a sample using silane-treated silica filter media
The present invention provides methods for separating one or more components of interest from a sample containing particulates and soluble materials. The method comprises the steps of: (a)...
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7374724 |
Device for processing samples, use of the device, and method for producing the device
The invention relates to a device ( 1 ) for processing samples ( 2 ), comprising a body ( 3 ) with a collecting chamber ( 4 ), which can be connected with a pump ( 5 ) for aspirating, or dispensing...
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7374673 |
Channeled polymer fibers as stationary/support phases for chemical separation by liquid chromatography and for waste stream clean-up
Polymer fibers having a novel cross-sectional geometry are used as stationary phase materials for liquid chromatography separations. Fibers of 20 to 50 micrometer diameters have surface-channel...
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7364655 |
Method and apparatus for injecting a sample into a chromatography system
A method and apparatus for injecting a sample into a chromatography system. The apparatus can include a tubular housing having an inner surface and an open end, and a cap coupled to the open end of...
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7364646 |
High-purity eluant generator
An apparatus and method for electrochemically modifying the retention of a species on a chromatography material is disclosed. The apparatus comprises a housing having an effluent flow channel...
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7364656 |
Triazine-based detoxification agents and their use
An affinity ligand-matrix conjugate comprises the matrix and conjugated thereto by the group Z, a ligand having general formula (I):
wherein one X is N and the other X is N, CCL or CCn; A 1 ...
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7361273 |
Separation of sugars, sugar alcohols, carbohydrates and mixtures thereof
The present invention relates to a method of separating sugars and sugar alcohols from each other. More particularly the present invention relates to the use of a weakly basic anion exchange resin...
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7361278 |
Process for producing mass transfer device and apparatus for production thereof
A process for producing a mass transfer device is provided which enables packing of a packing material uniformly in a flow channel, and transfers a specified substance by flowing a fluid containing...
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7361269 |
Fraction collector with adjustable tray
A fraction collector comprising a movable tray is provided. The movable tray may be attached to the fraction collector support system in a variety of ways and adjusted without adjusting the parts...
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7357864 |
Microfluidic device
The object of the present invention is to provide a production process of a microfluidic device in which a porous resin layer, which is capable of optimally fixing a large amount of enzyme, antigen...
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7358092 |
Method for the determination of 25-hydroxycholecalciferol in feed
A method for quantitative determination of 25-hydroxycholecalciferol in feed is described. The method includes the steps of adding a defined amount of an internal standard which has a mass...
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7354517 |
Separation of platinum group metals
A process for the chromatographic interseparation of rhodium in admixture with at least one base metal from a feed solution comprising complexes of these metals. The process comprises contacting...
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7351332 |
Chromatography cartridge and method for manufacturing a chromatography cartridge
A chromatography cartridge and method of manufacturing same. A chromatography cartridge of the present invention can include a tubular housing having an open end and an inner surface, and a plug....
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7347943 |
Methods and compositions for chromatography
The present invention is directed to methods and compositions for separating and isolating target molecules. In particular, the present invention comprises devices, such as CCDs, that contain...
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7335306 |
Chromatographic medium
A chromatographic medium including thioether ligands bound to a cross-linked polymer matrix. The polymer is an organic polymer and the medium is hydrophilic. A method of manufacturing the media is...
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7332086 |
Method for preparing a separation medium
The present invention relates to a method of preparing a separation medium starting with an aqueous solution of spherical and preferably functionalised primary particles of defined size, comprising...
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RE40070 |
Antibody purification
This invention relates to the application of hydrophobic interaction chromatography combination chromatography to the purification of antibody molecule proteins. The questions raised in...
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7332087 |
Flow sensing apparatus used to monitor/provide feedback to a split flow pumping system
A method and apparatus for monitoring and controlling the nano-scale flow rate of fluid in the operating flow path of a HPLC system without relying on a nano-scale sensor in the operating flow...
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7329346 |
Ion chromatography system using catalytic gas elimination
A liquid chromatographic system is provided including catalytically combining hydrogen and oxygen gases in the chromatography eluent stream in a catalytic gas elimination chamber, to form water and...
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7329391 |
Microfluidic device and material manipulating method using same
Microfluidic devices for manipulating relatively dense materials, such as colloidal rod particles, are provided. Microfluidic devices for separating a denser first material from a less-dense second...
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7329353 |
LC/MS method of analyzing high molecular weight proteins
The present invention is directed to a novel method of analysis of high molecular weight proteins. More specifically, it is directed to a novel reversed-phase LC/MS method of analysis of high...
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7323101 |
Separating agent for optical isomer and method for preparation thereof
A separating agent which combines a high optical resolving power inherent in polysaccharide derivatives with sufficient solvent resistance and a method with which the separating agent can be...
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7323342 |
Method for improving oil desalting by forming unstable water-in-oil emulsions
A method for determination for a given oil the relative stability of a water-in-oil emulsion that will be formed by that oil with water comprises measuring for the given oil the weight fraction of...
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7320754 |
Method of preparing multi-modal anion-exchange ligands
The invention relates to a method of preparing multi-modal anion-exchange ligands, which comprises providing a cyclic three-functional scaffold comprising an amine, a carbonyl and a thiol;...
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7320755 |
Method of preparing ligands for hydrophobic interaction chromatography
The invention is a method of preparing multimodal ligands for hydrophobic interaction chromatography (HIC), which comprises providing a cyclic scaffold comprising a thiol, an amine and a carbonyl...
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7318900 |
Chromatography system and method
A chromatography system and method for analyzing a sample of interest. The chromatography system can include a housing, a cartridge holder coupled to the housing and formed to hold a chromatography...
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7316777 |
Compression fitting nut with interlocked ferrule
The invention pertains to a nut and ferrule assembly for use in joining tubing to a fitting. The ferrule has a male member which interlocks with a nut and freely rotates within the nut. The...
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7314551 |
Flow distribution apparatus
Disclosed is a mixer-distributor-collector apparatus for use between beds of solid particles in a fluid-solid contacting vessel. The apparatus includes a solids retaining screen, fluid deflector,...
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7314567 |
Method for transferring heterogeneous liquids in microchannels without the occurrence of mixing
In the method for mixing-free transport of homogeneous liquids in microchannels a heterogeneous liquid flow ( 14 ) is autonomously divided into portions, transported over a distance and then...
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7314505 |
Stationary phase deposition based on onium salts
Onium salt chemistry can be used to deposit very uniform thickness stationary phases on the wall of a gas chromatography column. In particular, the stationary phase can be bonded to non-silicon...
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7314845 |
Supported catalyst systems
The present invention relates to a supported catalyst system. The supported catalyst of the present invention comprises an inorganic support having attached to at least one surface thereof...
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7314550 |
Analytical separations with polyelectrolyte layers, molecular micelles, or zwitterionic polymers
Polymeric surfactants (molecular micelles) are disclosed for use in open tubular capillary electrochromatography or in high performance liquid chromatography. For example, fused silica capillaries...
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7311825 |
Polymer modified porous substrate for solid phase extraction
A polymer modified porous substrate for solid phase extraction or chromatography, comprising a porous substrate and a polymeric monolith formed thereon, wherein the polymeric monolith comprises C...
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7311836 |
Process for producing amino acid or salt thereof by column technique and production apparatus thereof
According to the process for producing amino acid or salt thereof in the present invention, in the adsorption step, an amino acid-containing aqueous solution is fed into a pressure tight column so...
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7311838 |
Method for the extraction and analysis of contents made from organic material
The present invention relates to a process for isolating constituents from organic material, comprising the following process steps:
a) freeze-drying of the organic material; b) extracting...
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7311826 |
Integrated high throughput system for the analysis of biomolecules
Described is an affinity microcolumn comprising a high surface area material, which has high flow properties and a low dead volume, contained within a housing and having affinity reagents bound to...
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7309426 |
Composition and method for high efficiency chromatography
The invention provides novel compositions, columns and methods for improved chromatographic separations. In particular, novel column packings are provided to improve overall chromatographic...
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7306734 |
Method for separation of enantiomeric isomers by simulated moving bed chromatography
The present invention provides a method having a high productivity for preparative separation by simulated moving bed chromatography. That is, in a filler for enantiomeric isomer separation by...
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7306720 |
Membrane based volatile component-removal devices for liquid chromatography
In a liquid chromatographic system, removing at least part of a volatile component from the liquid sample stream after separation by flowing it through a volatile component-removal device including...
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7303671 |
Ion exchange particle-bound flow-through porous monolith
A flow-through ion exchange medium comprising a monolithic stationary phase having interconnecting pores defined by pore walls, and fine ion exchange polymeric layering particles irreversibly bound...
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7303682 |
Distributing or collecting device
The present invention relates to a fluid distributing device for distributing fluid into a column and to a fluid collecting device for collecting fluid from a column. The invention relates also to...
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7291263 |
Polymeric fiber rods for separation applications
A separation element is provided for use in a chromatographic analysis system for the separation of a mixture using a stationary phase and a mobile phase. The separation element comprises a fluid...
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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...
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7282705 |
Microdevice having an annular lining for producing an electrospray emitter
A microdevice is constructed from a substrate having a microchannel formed therein and a cover plate arranged over the substrate. The cover plate in combination with the microchannel at least...
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7279094 |
Chromatography methods and chromatography apparatus
Ultrasound transceivers ( 20 ) are distributed up the side wall of a chromatography column ( 1 ) and enable tracking of the progress of a rising bed front ( 5 ) during packing. Comparison with a...
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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,...
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7269994 |
Chromatograph/mass spectrometer
The present invention provides a chromatograph/mass spectrometer capable of producing a composite chromatogram from plural chromatogram signals without causing the baseline level to rise or the...
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