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7618826 |
Membrane suppressor with an outlet substantially non-retentive for ionic species
An apparatus for ion chromatography comprising a suppressor comprising a housing and a liquid conduit segment disposed in the housing, the liquid conduit segment including a membrane, the membrane...
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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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7608462 |
Drying SPE cartridges
A method for spectrometric investigation of a plurality of samples dissolved in a solvent comprises: (a) guiding a first solvent with a sample through an SPE cartridge for concentrating the sample...
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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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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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7596988 |
High performance liquid chromatography sample introduction optimized with bubble detection
A device ( 100 ) for detecting a condition in a fluid system ( 14 ) and initiating a response based on the condition. The device consists of a sensor ( 12 ) that responds to a first and second...
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7588725 |
High throughput autosampler
An auto-injection system provides high throughput screening of fluidic samples. A sample injection valve has a first position which applies a reduced pressure to a sample sipper tube for aspirating...
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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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7550716 |
Mass spectrometer
The present invention provides a mass spectrometer capable of breaking even a sample molecule having a large molecular weight by a CID process. In an embodiment of the present invention, the mass...
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7531075 |
Method and apparatus for generating a high purity eluant
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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7527765 |
Consumer food testing device
A food testing device for testing for the presence of harmful contaminants in a food sample, includes a vessel adapted for holding a liquefied food sample, a liquefier operatively associated with...
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7526947 |
Automatic sample introduction apparatus
A function of automatically performing a pretreatment process on a sample is provided in an auto sampler of a total volume injection method that can realize high measurement accuracy even when an...
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7524457 |
Displacement chemical regeneration method and apparatus
Apparatus for chromatographically separating ionic species in an aqueous electrolyte-containing eluent to form an effluent, suppressing the effluent, detecting the suppressed effluent and passing...
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7517698 |
Installation and process for automatic preparation of samples
An installation for the automatic preparation of specimens by liquid/solid extraction on a column is characterized in that the extraction device comprises, on either side of the columns ( 3 ), a...
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7514516 |
Measurement and preparation of branched vinyl polymers
Disclosed are novel non-linear vinyl polymers comprised of a multifunctional peroxide, and a cross-linking agent and/or a chain transfer agent, and methods of making such polymers having: at least...
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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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7497934 |
System and method
An analysis system for and method of enabling determination of the velocities of migrating objects and also classifying migrating objects into groups having a common constraint. In one aspect the...
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7494815 |
Method and apparatus for analyzing compounds with amino group
The present invention provides a method and apparatus for analyzing compounds with amino group(s) contained in biological organisms. In this method, a compound with amino group(s) is derivatized...
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7491326 |
Apparatus for distributing liquids having an adapter
An apparatus for distributing liquids to one or more receiving elements. The apparatus comprises a first element arrangement having one or more first receiving elements, a second element...
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7485852 |
Mass analysis method and mass analysis apparatus
The present invention achieves a mass analysis method that can identify protein or peptide with high speed and high sensitivity. A mass spectrum is obtained from a standard sample of healthy...
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7473354 |
Recycled suppressor regenerants
A suppressed ion chromatographic apparatus using a regenerant recycle loop, comprising (a) an ion separation device, (b) a membrane suppressor, (c) a detector, (d) a container for regenerant...
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7459126 |
High speed sample supply device
Disclosed herein is a sample supply device that alternates between the supply of samples from one sample line while cleaning a second sample line and then supplying a second sample from the second...
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7452507 |
Portable apparatus for separating sample and detecting target analytes
Portable devices and methods for determining the presence of a target analyte using a portable device are provided. The portable device is preferably hand-held. A sample is injected to the portable...
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7445935 |
Process and apparatus for loading a particulate solid into a vertical tube
A process is described in which an elastic fluid is contacted with a particulate solid. This comprises providing a substantially vertical elongate tubular containment zone ( 1 ) containing a charge...
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7442556 |
Microfluidic-based electrospray source for analytical devices with a rotary fluid flow channel for sample preparation
This invention provides microfluidic devices and methods for using the same. Microfluidic devices of the present invention comprises a first elastic layer, a fluid flow channel within the elastic...
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7416698 |
Molecular topological fractionation of macromolecules
A process for characterizing a sample comprising a population of linear macromolecules of interest ( 104 ) and a population of long chain branched macromolecules of interest ( 103 ), the process...
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7405083 |
Method and apparatus for purifying and desalting biological samples
The subject invention provides a sample processing technique for purifying a biological or chemical sample. The invention is particularly well-suited to prepare a sample for mass spectrometry. The...
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7402283 |
Electrolytic eluent generator and method of use
An acid or base is generated in an aqueous solution by the steps of:
(a) providing a source of first ions adjacent an aqueous liquid in a first acid or base generation zone, separated by a...
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7393692 |
SERS method for rapid pharmacokinetic analysis of drugs in saliva
The method and apparatus rapidly separate drugs and their metabolites from saliva and, in a continuous sequence of steps, rapidly detect, identify and quantify them through surface-enhanced Raman...
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7393691 |
SERS method and apparatus for rapid extraction and analysis of drugs in saliva
The method and apparatus rapidly separate drugs and their metabolites from saliva and, in a continuous sequence of steps, rapidly detect, identify and quantify them through surface-enhanced Raman...
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7364701 |
Liquid homogenizing unit and high speed liquid chromatograph equipped with the same
A liquid homogenizing unit comprising a feed flow channel ( 56 ), a discharge flow channel ( 57 ), a first intermediate flow channel ( 58 ) communicating with the feed flow channel ( 56 ), and a...
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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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7357852 |
Bubble-free and pressure-generating electrodes for electrophoretic and electroosmotic devices
Bubble-free electrodes, electrochemical cells including bubble-free electrodes, analytical devices, and methods for preparing and using them are provided. The analytical devices each include at...
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7332347 |
Apparatus and method for concentrating and collecting analytes from a flowing liquid stream
An apparatus for concentrating and collecting one or more analytes in a flowing liquid stream of a carrier solvent composed of one or more solvent components is provided, which includes a transfer...
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7329386 |
Column packing material and method for producing the same
The first subject of this invention is a column packing material comprising:
a silica gel having a silanol group; a first chemical modification group which is bound to said silanol group; a...
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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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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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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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7297547 |
Analysis of metals in acidic solutions
In one embodiment, a method of neutralizing the matrix of an acidic solution including at least one metal using a weak anion exchange resin is provided. The method includes the acts of: activating...
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7291383 |
Supports for solid phase extraction
A support for solid phase extraction is provided for preventing the fracture of the porous body of the support and the space between the porous body and its container, and for processing various...
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7288228 |
Sample injection system
An HPLC injection valve is mounted to a probe drive system close to the probe axis to minimize probe movements required for sample injections into a mobile phase column. The probe is directly...
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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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7270716 |
Method of selecting contact lens and/or care system therefor
It is intended to provide a method of selecting a contact lens suitable for a wearer and/or a care system therefor, by which the occurrence of problems (for example, worsening in the feel during...
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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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7267796 |
Preparative liquid chromatograph using plural detectors
The preparative liquid chromatograph uses a plurality of detectors including a mass spectrometer, and a chromatogram generator is provided for generating a plurality of chromatograms each...
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7261812 |
Multi-column separation devices and methods
Chromatographic separation devices include multiple batch-processed columns joined by a body structure and adapted to perform parallel analyses. Both slurry-packed and monolithic column embodiments...
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7250304 |
Functional assay of high-density lipoprotein
This invention provides novel assays that are prognostic and/or diagnostic for atherosclerosis or risk of atherosclerosis. It was discovered that high density lipoprotein (HDL) or components...
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