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7618539 |
Simulated moving bed chromatography for strongly retained compounds
Simulated moving bed (SMB) chromatography involving a series of columns serially connected in a circuit is performed in a modified protocol by dividing the columns into two groups isolated from...
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7618535 |
Suppressed chromatography and salt conversion system
Method and apparatus for suppressed ion analysis in which a sample solution of analyte (e.g., anion) in an eluent of electrolyte counterions (e.g., sodium), is chromatographically separated. Then,...
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7615150 |
Separation agent for separating optical isomer and method for preparation thereof
A method of producing a novel separating agent for separating enantiomeric isomers, characterized by including: a step of supporting an optically active polymer compound and a compound having an...
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7611631 |
Indium adsorbent and indium fractioning method
The invention provides an indium adsorbent that can cause indium to be adsorbed, and a simple and inexpensive indium fractioning method for isolating and recovering high-purity indium from an acid...
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7608187 |
Manufacture of a chromatography matrix
The present invention relates to method of manufacturing a sulphonate-functionalized (S-functionalized) cation exchanger, which method comprises reacting olefinic groups with bisulphite in the...
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7604747 |
Chromatography columns and their operation
A method of operating chromatography column apparatus comprising a column tube ( 101 ) and first and second discrete end cell structures, associated with the respective ends of the column tube and...
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7604736 |
Laser welded frit
A method of forming a column ( 100 and 200 ) for use with an analytical chemical instrument. The method includes placing a frit ( 102 and 202 ) in proximity to a distal end ( 110 and 210 ) of...
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7601543 |
Method of modulating a second carrier for partial modulation via pulsed flow modulator for comprehensive two-dimensional liquid or gas chromatography
This invention is a method and device for use with multi-dimensional chromatography that utilizes partial modulation. An analyte-bearing sample is subjected to a first dimension of chromatography....
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7601542 |
Analytical method for protein mapping using hydrogen/deuterium exchange
Analytical methods using hydrogen/deuterium exchange are provided which reduce or eliminate the back-exchange of deuterium for hydrogen. The methods, which are useful in protein and peptide...
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7598371 |
Nucleic acid separation using immobilized metal affinity chromatography
An immobilized metal affinity chromatography (IMAC) method for separating and/or purifying compounds containing a non-shielded purine or pyrimidine moiety or group such as nucleic acid, presumably...
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7597804 |
Optically active support materials, their method of preparation and their uses
This invention relates to optically active support materials which include one or more esters and/or one or more carbamates and/or one or more mixed ester and carbamate compounds of polysaccharide...
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7595350 |
Ultraporous sol gel monoliths
Ultraporous sol gel monoliths and methods for preparing the same are provided, having superior flow characteristics for chromatography and analytical chemistry applications. The methods for forming...
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7594999 |
Multi column chromatography system
The present invention relates to a method and apparatus for chromatographically analyzing each of a plurality of samples in detector, comprising an autosampler to contain a plurality of samples for...
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7592468 |
Production of Δ 9 tetrahydrocannabinol
Δ9 THC acid is obtained from plant material and extracted into an aqueous solvent under conditions of pH control. The acid is converted to a salt and the salt extracted into a polar solvent,...
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7588687 |
Method for separating electrolytes
The present invention is directed to a method of separating electrolytes by size exclusion chromatography using neutral microporous sorbent materials. Two types of sorbents have shown to be most...
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7588683 |
Column for liquid chromatography with adjustable compression
A column for liquid chromatography includes a chamber adapted to receive packing medium. Openings in the chamber allow fluid to pass through it. Porous plugs in the chamber retain the packing...
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7582482 |
Continuous ion species removal device and method
Apparatus and method for treating a liquid sample stream including at least one analyte ion species and matrix ion species of opposite charge to said one analyte ion species. The liquid sample...
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7582214 |
Methods for forming macroporous monolithic methylsilsesquioxanes
The present invention relates to a two-step method of preparing methylsilsequixane (MSQ) materials suitable for chromatographic applications comprising treating a MSQ precursor with a suitable acid...
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7578934 |
Chromatographic column seal
A seal on a movable top or bottom plate for use in a chromatography column. The plate is formed of a flow distributor connected to one or more movement rods that control the movement of the top...
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7576034 |
Crosslinked three-dimensional polymer network, method for preparing same, support material comprising same and uses thereof
The invention concerns a crosslinked optically active three-dimensional polymer network, consisting of homochiral units of a first selector and of homochiral units of at least a second selector of...
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7575676 |
HPLC column holder apparatus
An HPLC column holding apparatus used to mount an HPLC column in one of a plurality of positions is disclosed herein. The apparatus comprises a clip-device interface that secures the apparatus to a...
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7569149 |
Ionic liquids as solvents in headspace gas chromatography
A method of using an ionic liquid as solvent in headspace gas chromatography.
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7566401 |
Process for separating and isolating xanthines, individual polar protic monomers, and polar protic oligomers
An improved process for separating and isolating individual polar protic monomer(s) and/or oligomer(s) on the basis of degree of polymerization. A liquid sample containing polar protic monomer(s)...
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7566395 |
Purification system
The present invention relates to automated chromatography systems and software for controlling such automated systems for optimising the purification of a protein from a sample. The software is...
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7563410 |
Solid phase extraction apparatus and method
Devices, and methods of use thereof, receivable by autosamplers for processing fluids contains suspended solids and solubles in, for example, solid phase extraction, include an inlet chamber in...
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7563367 |
pH stable chromatographic media using templated multilayer organic/inorganic grafting
An advanced silica gel sorbent for use in chromatographic separations that has been chemically modified by surface polycondensation of a trifunctional and/or difunctional organosilane. The...
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7560030 |
Method for separation and enrichment of phosphopeptides
The present invention relates to phosphopeptide isolation and enrichment, particularly to a highly selective and specific phosphopeptide enrichment method. The method mentioned in the invention is...
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7560023 |
Method of modifying surface of material
A method for surface modification of a material by means of introducing the phosphorylcholine group represented by the following formula (1-1) onto the surface of the material by treating a...
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7556962 |
Saccharide composition purification instrument
The present invention provides a sugar chain purification instrument which can continuously and efficiently purify the sugar chain. According to the present invention, the instrument includes an...
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7556731 |
Liquid chromatograph
A liquid chromatograph having a flow passage switching mechanism for switching among a normal analysis flow passage formed by connecting a mobile-phase-sending-unit, a second mixer having a large...
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7551270 |
Differential refractive index detector
Provided is a differential refractive index detector having a light receiving element, a zero glass, a zero glass driving unit and a storing portion, and is capable of performing purging operation...
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7550080 |
Liquid chromatograph analysis apparatus and method
A liquid chromatograph analysis apparatus includes: a macro storing section for storing a macro program having various commands related to a purge operation; a macro executing section for reading...
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7547395 |
Macroporous gel, its preparation and its use
A separation medium in macroporous gel form is disclosed which is obtainable by cooling an aqueous solution of at least one gel forming polymer to a temperature, at which the solvent in the system...
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7541003 |
Latex based adsorbent chip
The present invention provides an adsorbent chip, which includes three components, a substrate, an intermediate layer of linker arms and an adsorbent film, which is attached to the linker arms. The...
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7540962 |
Method of preparing spheroid polymer particles having a narrow size distribution by dispersion polymerization, particles obtainable by the method and use of these particles
The invention relates to a method of preparing spheroid polymer particles having a narrow size distribution by dispersion polymerization. This method comprises the steps of: providing a two-phase...
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7537704 |
Method for determining the concentration of asymmetric dimethylarginine (ADMA)
The invention relates to a method for determining the concentration of asymmetric dimethylarginine (ADMA) simultaneously with arginine and with symmetric dimethylarginine (SDMA) in biological...
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7537703 |
High-endurance packing material for liquid chromatography
The present invention provides a highly durable packing material for liquid chromatography that is excellent in acidic resistance and alkalic resistance. Such a packing material for liquid...
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7537694 |
Method and device for multidimensional liquid chromatography
In a liquid chromatography, an electrolytic solution starts to be supplied from an injector toward a specimen in a first separating column to transfer components of the specimen from the first...
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7534352 |
Reversed endcapping and bonding of chromatographic stationary phases using hydrosilanes
A process for producing a chromatographic stationary phase for use in reversed-phase chromatography. Chromatographic stationary phases prepared according to the methods of the current invention and...
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7534346 |
Chromatography columns
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...
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7534345 |
Chromatography column distribution system
A chromatography column distribution system ( 101 ) comprises a set of first bed support ribs ( 107 ) extending radially from a inner, first radial position (R 1 ) near the centre of the plate to a...
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7534286 |
Methods and systems for cooling a chromatographic column
Systems and methods for cooling a chromatographic column is disclosed generally, comprising heating a chromatographic column, supplying fluid into the column via the inlet end of the column at an...
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7520982 |
Cucurbituril-containing polymer, stationary phase and column using the same
Provided is a cucurbituril-containing polymer. The cucurbituril-containing polymer may be used in removal, separation, or purification of air pollutants, water contaminants, biological substances,...
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7514000 |
Implementation of microfluidic components, including molecular fractionation devices, in a microfluidic system
A system and method for integrating microfluidic components in a microfluidic system enables the microfluidic system to perform a selected microfluidic function. A capping module includes a...
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7510657 |
Method of preparing affinity ligands
The present invention is a method of preparing affinity ligands, which method comprises to provide a cyclic scaffold comprising a thiol group, a carbonyl group and an amine group; to derivatize the...
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7507586 |
Partial modulation via pulsed flow modulator for comprehensive two-dimensional liquid or gas chromatography with multiple modulation periods
This invention is a method and device for use with multi-dimensional chromatography that utilizes partial modulation with multiple secondary retention times. An analyte-bearing sample is subjected...
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7507337 |
System and method for rapid chromatography with fluid temperature and mobile phase composition control
The invention relates to liquid chromatography techniques for rapidly characterizing samples, such as polymer solutions, emulsions and dispersions, and to devices for implementing such techniques....
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7507336 |
Connector for analytical devices
A connector element for use with analytical devices is provided. The connector element includes a cavity for receiving a sealing member, and an access element for providing access to the sealing...
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7504029 |
Silica gel bonded with cucurbituril
A cucurbituril-bonded silica gel and its use are provided. The cucurbituril-bonded silica gel is useful for removal of air pollutants or water contaminants, and separation and purification of...
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7482169 |
Low dead volume extraction column device
The invention provides extraction columns for the purification of an analyte (e.g., a biological macromolecule, such as a peptide, protein or nucleic acid) from a sample solution, as well as...
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