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7425263 |
Multi-component, simultaneous, independent multi-gradient system for liquid chromatography
Systems and methods for separating charged molecules on the basis of their differential electrostatic binding to a charged stationary phase comprise controlling the creation of simultaneous...
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7413659 |
Liquid chromatographic method and system
To form a smooth gradient and a preparatory liquid chromatographic system having a plurality of syringe type pumps, solvents are alternately drawn and inserted into each cylinder. The solvents are...
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7402250 |
Equipment and method for feeding liquid gradient in nano/micro liquid chromatography
It is an object of the present invention to improve the performance of gradient liquid transfer in nano/micro liquid chromatographs when solvents are mixed. In a gradient liquid transfer device...
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7396469 |
Backflow prevention for high pressure gradient systems
Gradient performance with high pressure gradient solvent delivery system is optimized by approximation of infinite stroke volume of high pressure pumps by the addition of pulse dampening with...
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7351334 |
Liquid chromatographic method and system
A chromatographic monitor includes an array of flow cells with individual light sensors that are collectively an array of photodiodes. The output from the photodiodes are multiplexed. To prevent...
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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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7306736 |
Valve mechanism for infusion fluid systems
A method and an apparatus are provided for preventing retrograde flow of fluid, e.g., blood products, into a source of sterile substitution fluid ( 50 ). The apparatus of the present invention...
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7297268 |
Dual head pump driven filtration system
Improvements in product water throughput from a reverse osmosis (RO) membrane achieved by thinner feed spacers in the RO element ( 22 ), enhanced recovery (ratio of permeate to feed), pressure...
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7244357 |
Pumps for filtration systems
Improvements in product water throughput from a reverse osmosis (RO) membrane filter achieved by thinner feed spacers in the RO element, enhanced recovery (ratio of permeate to feed), pressure...
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7229550 |
Potable water treatment system and apparatus
In the present invention, a potable water treatment system and apparatus for purifying and treating potable water that is being transferred from a potable water source to a number of potable water...
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7189320 |
Pump, pump for liquid chromatography, and liquid chromatography apparatus
The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate and in discharging bubbles at startup. In a pump for liquid chromatography...
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7186336 |
Flow sensing apparatus
A method and apparatus for monitoring and controlling the nano-scale flow rate of fluid in the operating flow path of a HPLC system. A first flow sensor is disposed in a first flow path between a...
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7182862 |
Fractionating apparatus
The probe has a triple tube structure, in which an eluate from a liquid chromatograph flows through an innermost flow passage, a matrix solution flows through a flow passage outside the innermost...
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7175759 |
Apparatus and a method for controlling the alkalinity and pH of an industrial process
The present invention relates to an apparatus and a method for controlling the alkalinity and the pH of an industrial process. The apparatus is adapted for being located outside a main process...
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7169300 |
Fractionating apparatus
A tip portion of a probe has a triple tube structure in which a fused silica capillary on the innermost side, a capillary made of FEP outside the fused silica capillary, and a stainless pipe on the...
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7169299 |
Fractionating apparatus for liquid chromatography
A distal end portion of a probe has a multi-pipe structure, in which an effluent solution from a high speed liquid chromatography passes through an innermost flow passage, a matrix solution through...
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7163617 |
Chemical proportioning and dispensing systems
Chemical proportioning and dispensing systems discussed herein include systems for producing a desired admixture ratio of a first fluid and one or more other fluids. The systems may include one,...
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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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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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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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7135111 |
Separation analyzer
A separation analyzer for transferring solutions, while changing mixing ratios of the solutions, wherein a flow passage from a first pump, a flow passage from a second pump, and a passage for...
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7112273 |
Volumetric fluid balance control for extracorporeal blood treatment
A method and device for adjusting a volumetric flow balancing system for an extracorporeal blood treatment system receives a pressure signal and calculates a compensation factor that is used to...
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7067061 |
Method and a device for preparing a medical liquid
A method for preparing a medical liquid from a liquid, such as water, and two concentrated solutions comprises the following steps:
circulating the liquid in a conduit ( 15 ), at a flowrate...
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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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7025876 |
Sample processing device and sample processing method
A solution such as a washing liquid can be passed through a separation column such as a nozzle tip having a solid phase quickly and reliably, thereby achieving improvements in throughput. A sample...
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7021336 |
Even-flow septic tee arrangement
An even-flow tee arrangement for use with a septic system consists of a tee connector having top and bottom section cemented together. The bottom section includes a splitter plate extending from...
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6994790 |
Whole blood collection and processing method
A method is disclosed for collecting and processing whole blood. Whole blood is collected at several remote donor sites and transported to a central blood-processing center, where information...
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6982032 |
Apparatus and method for biological treatment of environmental contaminants and waste
The invention is directed to an apparatus for delivering activated microorganisms to an environment to be treated. The apparatus has a bioreactor containing microorganisms, a supply of organic and...
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6962658 |
Variable flow rate injector
A variable flow rate injector provides accurate, precise, and reproducible injection volumes that have low dispersion. The invention is particularly well-suited for HPLC injection volumes <500...
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6958119 |
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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6955760 |
Liquid chromatograph
In a trap flow path, two diluents are supplied by solvent pumps that can respectively determine the flow rates independently. One of the diluents is allowed to pass through a fraction loop so as to...
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6942792 |
Mixer for liquid chromatograph
Three metal plate materials, each having penetration holes, are united together in this order as a set at such positions that penetration holes can penetrate through the three metal plate materials...
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6923916 |
Liquid chromatograph pump and control method therefor
In a pump for feeding a liquid for chromatography, first and second plungers form first and second volumes respectively together with first and second chambers, the first plunger is prevented from...
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6893569 |
Method and apparatus for high pressure liquid chromatography
This modified HPLC instrument has the HPLC pump force only solvent through the serial flow line including a sampler, column, and detector; while buffer is discharged into the solvent from a syringe...
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6811710 |
Large water reservoir management system
A method and apparatus for controlling water impurity level and temperature uniformity within large water-containing reservoirs including a pump located in the body of water, the pump ejecting a...
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6805791 |
Ozonated water flow and concentration control apparatus
The invention features an apparatus and a method for supplying ozonated water to more than one process tool. Ozonated water of a first concentration received from an ozonated water generator and...
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6793815 |
Pumping arrangement
A pumping arrangement, for example for liquid chromatography, includes a first liquid reservoir at a first height level, connected via a first hydraulic path to a pumping device; a second liquid...
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6780315 |
Backflow prevention for high pressure gradient systems
Gradient performance with high pressure gradient solvent delivery system is optimized by approximation of infinite stroke volume of high pressure pumps by the addition of pulse dampening with...
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6652741 |
Piston pump, method and installation for filtering water
The present invention provides a method and an installation for filtering a liquid using a membrane filter device. The technical sector of the invention is the field of manufacturing filter...
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6627075 |
Device for and process of preparing volume flows of liquids in at least one passage of a chromatographic column
Volume flows of liquids in capillary tubes of chromatographic separation columns for analytical liquid measuring technology are controlled. The volume flows are derived from a liquid transport,...
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6620315 |
System for optimized control of multiple oxidizer feedstreams
This invention is directed to a method and apparatus for controlling and optimizing the feed of two or more oxidizers to an aqueous stream, thereby providing a synergistic effect. The system...
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6610201 |
High pressure capillary liquid chromatography solvent delivery system
High pressure capillary liquid chromatography solvent delivery is effected at substantially low volume and atmospheric pressure. The low volume solvent composition is subsequently pressurized and...
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6605221 |
Method and apparatus for washing polycarbonate/organic solvent solution
Provided is a method for washing an impurities-containing polycarbonate/organic solvent solution with an aqueous washing solution, which comprises monitoring the viscosity of the mixture dispersion...
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6585898 |
Method and apparatus for preparation and use of ozone water
A system for production of water having dissolved ozone includes a water feeding section, a container part, an ozone feeding part for feeding ozone to a mixing part dissolving ozone in the water,...
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6503389 |
Liquid chromatograph
An operation portion reads an analyzing time and an analyzing flow rate from a storing portion for a next analysis to calculate a liquid delivery quantity per analysis for the next analysis, and...
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6488852 |
Apparatus and method for biological treatment of environmental contaminants and waste
The invention is directed to an apparatus for delivering activated microorganisms to an environment to be treated. The apparatus has a bioreactor containing microorganisms, a supply of organic and...
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6485642 |
Liquid chromatograph
A sample solution is sent into a concentration column through a three-way joint and a three-way switching valve to trap and concentrate the sample components on the concentration column, followed...
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6458268 |
Industrial waste water treatment cleaning apparatus
A method and apparatus for controlling waste water treatment is disclosed. A feed-forward controller adjusts chemical injection pumps in response to signals from the contaminant zone, while delays...
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6391192 |
Apparatus for treating biological sludge
An automated apparatus for introducing a mixed liquid base (lime) in a first container or tank ( 106, 106 A) into a biological sludge in a second container ( 110, 110 A and 110 B) is described....
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