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7157004 |
Freeze drying for gas chromatography stationary phase deposition
The present disclosure relates to methods for deposition of gas chromatography (GC) stationary phases into chromatography columns, for example gas chromatography columns. A chromatographic medium...
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7157022 |
Multivalent metal ion extraction using diglycolamide-coated particles
A separation medium, a method for using that separation medium and an apparatus for selectively extracting multivalent cations such as pseudo-lanthanide, prelanthanide, lanthanide, preactinide or...
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7156989 |
Separating agent including polysaccharide derivative having a polycyclic structure
The present invention provides a separating agent for enantiomeric isomers, which has an excellent ability to identify asymmetry. That is, the present invention relates to a separating agent for...
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7153692 |
Diagnostic methods for determining susceptibility to convulsive conditions
The present invention exploits the discovery that amounts of uracil and thymine metabolites, especially β-aminoisobutyric acid, in various bodily fluids, especially urine, are correlated with the...
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7153421 |
Frit material and bonding method for microfluidic separation devices
A multi-layer microfluidic separation device comprises a polymeric membrane frit that may be securely bonded within the device and minimizes lateral wicking. Stationary phase material having an...
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7151167 |
Open channel solid phase extraction systems and methods
The invention provides, inter alia, methods of extracting an analyte from a solution comprising the steps of: passing a solution containing an analyte through an extraction channel having a solid...
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7144502 |
Chromatography system with gradient storage and method for operating the same
In accordance with one aspect of the present invention, an ultra-high pressure chromatography system (UHPLC) is provided and includes a high pressure chromatography arrangement of equipment (HPLC...
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7141161 |
Gradient pump apparatus
A gradient pump apparatus which is capable of continuously and precisely feeding, to a chromatograph, eluents at intervals of certain time and at a constant flow rate in units of nano-liter per...
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7141160 |
Chiral columns with broad chiral selectivity
A general chiral column with a multipleproline-based chiral stationary phase. Embodiments include chiral stationary phases of the following formula:
wherein n is any integer of 2 or greater,...
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7138062 |
Mobile phase gradient generation microfluidic device
The present invention relates to a microfluidic device for separating the components of a fluid sample. A cover plate is arranged over the first surface of a substrate, which, in combination with a...
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7138050 |
Fractionating/collecting device of liquid chromatograph
In a preferred embodiment, a sample container storage part for storing a number of sample containers S, a nozzle for dropping a sample component separated and supplied by an LC and an additive...
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7138518 |
Liquid chromatographic separation of polynucleotides
In one aspect, the invention provides a method for separating a mixture of polynucleotides, such as DNA or RNA, including (a) applying the mixture to a polymeric separation medium having non-polar...
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7138061 |
Flash chromatography cartridge
A low pressure liquid chromatographic cartridge is provided having a tubular polymer container adapted to receive a chromatographic packing material. The container has an outlet port located at a...
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7138051 |
Chromatography system, method and software for the separation of biomolecules
The present invention relates to methods, systems and software for optimising the separation of a sample of biomolecules eluted from a chromatography column in which the concentration of a second...
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7132046 |
Stainless steel tubing/frit with sintered inorganic particle, the chromatography comprising it, and their manufacturing method
This invention is about metal tubing/frit applicable in liquid chromatography and a chromatography column manufactured by using the same. In detail, this invention is about manufacturing the metal...
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7132053 |
Protective device for the chromatographic bed in dynamic axial compression chromatographic columns
The invention concerns a chromatographic device including a column ( 12 ) for receiving a chromatographic bed ( 14 ) through which flow a first fluid; a piston ( 36 ) sliding inside the column ( 12...
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7128884 |
Porous silica microsphere scavengers
Highly purified, porous silica microspheres contain functional groups which are capable of selectively binding to reaction impurities, such as excess reactant or reaction by-products, which are...
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7125489 |
HPLC column design and method of making same
The disclosed HPLC column is formed with overlying concentric inner and outer tubes. The flow path is established via the inner tube bore that holds packed absorbent, end filters and capping...
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7125492 |
Additives for reversed-phase HPLC mobile phases
The present invention provides silica-based reversed-phase HPLC methods that lead to higher retention of the analytes in the column and longer column lifetimes than usually observed under medium to...
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7125723 |
Method and assay kit for evaluation of the oxidative modification of protein-containing substances
Oxidative stress in living organisms is determined in a photochemiluminescence measuring system after separation of low-molecular weight antioxidants from protein-containing test samples that were...
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7125488 |
Polar-modified bonded phase materials for chromatographic separations
Novel compositions are disclosed for use as a stationary phase in chromatography comprising an inorganic substrate that is modified with at least one silane having the formula R 1 δ -Q α -(CH 2 )...
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7122640 |
Open channel solid phase extraction systems and methods
The invention provides, inter alia, methods of extracting an analyte from a solution comprising the steps of: passing a solution containing an analyte through an extraction channel having a solid...
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7118804 |
Pelletized chromotography media
A method of using a pellet composed of an aggregate of distinct beads of a chromatography media. The pellet is coherent and capable of being rapidly hydrated on addition of water to form a gel...
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7118671 |
Polycapillary chromatographic column and method of its manufacturing
Polycapillary chromatographic column contains a set of parallel channels isolated from each other, walls of the channels on the inside are covered with sorbent, and are joined with walls of...
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7115422 |
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 rough surface of hemispherical...
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7112277 |
Methods and systems for separating constituents of a highly aqueous fluid
The subject invention includes methods and devices for separating at least two constituents of a highly aqueous fluid. The subject methods include contacting a highly aqueous fluid with a...
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7105810 |
Electrospray emitter for microfluidic channel
An electrospray ionization device incorporates a shaped thin film with a microfluidic channel. The device may be interfaced to a time-of-flight mass spectrometer (TFOMS). In one embodiment, the...
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7101477 |
Liquid chromatography column having metal to metal seals
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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7101484 |
Sr-90/Y-90 radionuclide generator for production of high-quality Y-90 solution
A process for purifying a stock Sr-90 solution containing stable and radioactive impurities, holding the purified Sr-90 solution for Y-90 ingrowth, and subsequently extracting the Y-90 from the...
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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...
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7094351 |
Purification of substances by reaction affinity chromatography
The invention relates to the separation of at least one target from a sample composition using a naturally reversible reaction comprising the formation of at least one covalent bond. One embodiment...
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7094352 |
Method and device for packing chromatography columns
A column comprising a first end ( 2 a ) provided with a column packing means and a second end ( 2 b ) provided with a fluid collection means for collecting fluid from over some or all of the...
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7091044 |
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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7090774 |
Method for packed column separations and purifications
The invention encompasses a method of packing and unpacking a column chamber. A mixture of a fluid and a matrix material are introduced through a column chamber inlet so that the matrix material is...
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7090775 |
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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7087163 |
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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7087164 |
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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7087165 |
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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7083964 |
Method for purifying enzymes from clostridium histolyticum using multi-stage chromatography
The invention relates to a method for purifying at least one enzyme obtained in an excess fermentation of Clostridium histolyticum. It is provided for that the enzymes of the excess...
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7077953 |
Nanofilter system and method of use
An acid recovery system used in a hydrolysis operation includes a chromatographic unit to provide initial separation of sugar and acid. The sugar product provided by the chromatographic unit is...
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7077960 |
Method for obtaining a purified hydrofluoroalkane, purified hydrofluoroalkane, use of same and method for analysing same
Process for the production of a hydrofluoroalkane, according to which hydrofluoroalkane comprising organic impurities is subjected to at least two distillations.
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7074327 |
Sample preparation for parallel chromatography
Systems and methods are provided for preparing samples for chromatographic separations and then chromatographically separating the prepared samples, preferably in a high-throughput fashion...
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7074586 |
Quantitative assay for low abundance molecules
A method for quantitatively assaying one or more target molecules in a sample uses a nucleic acid aptamer that is specific for each target molecule. A quantitative replicative procedure is used to...
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7074335 |
Method of producing hierarchical porous beads
The present invention is a method of producing porous beads, which comprises the steps of providing a first liquid phase comprising a bead matrix material and essentially edgy templating...
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7074331 |
Separation system, components of a separation system and methods of making and using them
Permeable polymeric monolithic materials are prepared in a column casing. In one embodiment, the permeable polymeric monolithic materials are polymerized while pressure is applied through a piston...
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7074310 |
Method for separating single-wall carbon nanotubes and compositions thereof
The invention relates to a process for sorting and separating a mixture of (n, m) type single-wall carbon nanotubes according to (n, m) type. A mixture of (n, m) type single-wall carbon nanotubes...
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7074334 |
Method for determining the binding behavior of ligands which specifically bind to target molecules
The invention relates to a method for determining the binding behavior of ligands which specifically bind to target molecules at at least one binding site, whereby the markers are present in a...
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7067059 |
Generation of ion exchanger media
The present invention relates to a method of generating a separation medium comprising mixed mode cation-exchanger ligands coupled to a base matrix, which method comprises to provide a scaffold...
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7063784 |
Processing of chemicals in flow-through device with porous media
A method of processing a sample comprising introducing a sample into a flow-through device containing a porous solid media therein, and thereafter subjecting the device to microwave energy.
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7063785 |
Pump for liquid chromatography
The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate with high accuracy and in discharging bubbles at startup. At startup, a...
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