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7892847 |
Method and apparatus for countercurrent chromatography
A countercurrent chromatography apparatus includes a plurality of plates, at least one plate (16) having first and second interleaved spiral flow channels (52, 54, 56, 58) therein. Each spiral flow...
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7837873 |
Method and apparatus for producing purified botanical oil
Disclosed is a method for producing botanical oil with no by-produced trans fatty acids comprising the steps of; (1) introducing a raw oil obtained by squeezing plant seeds into a column having...
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7828966 |
Method for purification of botanical oil without producing any trans fatty acid as by-product and apparatus for the method
Disclosed is a method for producing botanical oil with no by-produced trans fatty acids comprising the steps of; (1) introducing a raw oil obtained by squeezing plant seeds into a column having...
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7540184 |
Analyzing method for coloring material composition
It is an object of the present invention to provide a method capable of easily identifying a coloring material composition. The method performs a chromatography step of loading a subject sample...
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7279105 |
Arrangement and method for performing chromatography
An arrangement for performing chromatography with a mobile phase and a chromatographic bed having a stationary phase is provided. The arrangement includes a support assembly configured to support...
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7208085 |
Caky chromatographic column and the method for producing it and its applications
The present invention discloses a new and improved kind of chromatographic cake and its manufacturing methods and applications. The objective of this invention is to provide an improved...
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6884346 |
Bonded phase photopolymerized sol-gel column and associated methods
A separation column and a method of making the separation column are provided. The separation column includes a separation channel and a separation medium in the channel. The separation medium...
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6875348 |
Separation column having a photopolymerized sol-gel component and associated methods
A separation column and a method of preparing the separation column are provided. The separation column includes a separation channel and a porous matrix in the channel. The porous matrix includes...
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6866785 |
Photopolymerized sol-gel column and associated methods
A separation column and a method of making the separation column are provided. The separation column includes a separation channel and fritless separation medium in the channel. The separation...
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6783988 |
Methods for quantitative and qualitative analyses of phospholipids using one-dimensional thin layer chromatography
A highly sensitive and specific method for the detection and quantification of lipids is provided. Specifically, methods for the simultaneous detection and quantification of phospholipids extracted...
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6712972 |
Method for the synthesis and evaluation of porphyrins, calix (4) pyrroles and allied macrocycles
The present invention provides an innovative method based on reaction cum separation on single plate concept for efficient evaluation of porphyrins, calix(4)pyrroles and allied macrocycles by...
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6709584 |
Device for analyzing substances by means of thin layer chromatography
A device for analyzing substances by thin layer chromatography comprises a solvent trough with two solvent channels, wherein two wall plates are mounted in the solvent trough, enabling thin layer...
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6497842 |
Quantitative chromatographic measuring device and method for manufacturing the same
In a chromatographic quantitative assay device and a manufacturing method thereof according to the present invention, as shown in FIG. 1, there are provided a non-moistenable reaction layer carrier...
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6465225 |
Method and device for manipulating particles in microsystems
For manipulation of particles in a fluidic microsystem (15) in which the particles are moved in a predetermined reference direction in a suspension liquid, the microsystem (15) is closed off at...
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6454939 |
Illumination box and camera system
A hand portable, field-deployable thin-layer chromatography (TLC) unit and a hand portable, battery-operated unit for development, illumination, and data acquisition of the TLC plates contain many...
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6395178 |
Thin porous layers for thin-layer chromatography
Novel separation materials for thin layer chromatography are disclosed; these consist of a support and a separation medium layer and are obtainable by the following process steps: a) cleaning of...
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6331254 |
Methods of separation and detection
Methods which employ thin layer chromatography for separating and detecting hydrophobic target molecules are particularly useful in separating biologically relevant lipids. By utilizing...
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6264893 |
Method and apparatus for developing thin layer chromatography plates for maximizing mobile phase conditions in column chromatography
An apparatus for conducting multiple thin layer chromatographic processes including an array of receptacles, each receivable of chromatographic fluid, a support structure for supporting the...
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6238928 |
Analytical process for testing mixtures for toxic constituents
The mixture to be tested for toxic components is first separated into fractions by chromatography. The separated fractions are then contacted with luminescent microorganisms in the chromatographic...
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6156431 |
Extraction material comprising treated silica and method for determination of gamma-hydroxybutyrate
A treated silica composition particularly useful for solid phase extraction in chemical analysis, the silica having both phenyl and propylsulfonic acid functional groups; a cartridge for extraction...
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6096205 |
Hand portable thin-layer chromatography system
A hand portable, field-deployable thin-layer chromatography (TLC) unit and a hand portable, battery-operated unit for development, illumination, and data acquisition of the TLC plates contain many...
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6019896 |
Method for using a quality metric to assess the quality of biochemical separations
A method for performing separation assays of biochemical samples includes computing a quality metric based on peak data produced during the separation run. The quality metric is the basis for...
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5882939 |
Separating materials for linking TLC and FTIR
The invention concerns separating materials for thin-layer chromatography, the materials having a sorbent layer formed from sorbent particles and disposed on a carrier. A reflection intensifier,...
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5773576 |
Coded thin layer chromatography support
Support materials for thin-layer chromatography characterized by a marker code applied using laser light.
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5762877 |
Chemical sample concentrating device
The present invention advances a chemical concentrating device for use with thin layer chromatographic, gas chromatographic, high pressure liquid chromatographic, and capillary electrophoresis...
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5728301 |
Apparatus and method for thin layer chromatography
A method for spectral analysis of mixtures is disclosed using thin layer chromatography for separation of the components of the mixture followed by taking FTIR spectroscopic readings along the...
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5683916 |
Membrane affinity apparatus and purification methods related thereto
A method and apparatus for carrying out affinity purification of a ligate. The method comprising, (a) providing a ligate containing liquid to a first side of at least one porous hollow fiber...
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5643447 |
Thin layer chromatographic plates
The invention provides a planar chromatographic plate comprising a supported homogeneous thin porous film of ceramic material produced by sol-gel technology the film being provided with a porous...
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5538634 |
Solid phase extraction filtration disk and method for its manufacture
A solid phase extraction (SPE) filtration disk provides a glass fiber disk embedded with bonded silica/particulate chemistries homogeneously dispersed throughout the disk. Bonded silica/particulate...
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5482677 |
Thermally desorbable passive dosimeter
A passive dosimeter with a structurally reinforced sorbent wafer is used for monitoring a worker's exposure to ambient aromatics (benzene, toluene, ethylbenzene and xylenes). The wafer is...
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5350510 |
Apparatus for thin layer chromatography
An apparatus for use in the performance of thin layer chromatography of the type which utilizes a thin bag as the developing chamber for the chromatogram is provided. The apparatus has a pair of...
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5320811 |
Thin layer chromatography direct sample application manifold
An apparatus and method for directly applying a liquid sample matrix containing analytes and possible endogenous compounds to selected areas of a thin layer chromatographic sheet. The apparatus...
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5306645 |
Concentration and transfer methods for a chromatogram and an LC/IR measuring method
Methods of conducting Thin Layer Chromatography (TLC) involving using a TLC plate having sample spots and including no support material, placing the TLC plate on a porous substrate, and allowing...
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5238621 |
Method of controlling porosity in a composite article
A composite article comprising, in the unexpanded form, a fibrillated PTFE matrix and a combination of energy expandable hollow polymeric particles and sorptive particles, which composite, on...
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5171528 |
Device for differentiating the source of occult gastro-intestinal bleeding
The specification discloses a fecal occult blood test device capable of determining whether the blood found during the test originated in the upper or lower gastrointestinal track. A fecal sample...
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5165292 |
Channel Device and tube connection and their fabrication procedures
A device for measuring at least one characteristic of a fluid is provided. The device comprises a measuring channel which is designed for conducting fluid flow therethrough and which is defined by...
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5162155 |
Silane coated inorganic materials for chromatography
The invention relates to silane derivatives of the formula I ##STR1## their preparation by hydrosilylation of corresponding (meth)acrylamides and their use as silylating agents.
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5147539 |
Controlled pore composite polytetrafluoroethylene article
A composite article having controlled void volume and mean pore size comprises: (a) polytetrafluoroethylene (PTFE) fibril matrix, and (b) insoluble, non-swellable sorptive particles enmeshed in...
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5116495 |
Capillary chromatography device
The invention describes a new fabrication procedure of a capillary chromatography device with at least one sensor unit. The device contains at least one capillary column which is formed between a...
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5110784 |
Dual surface porous material
Porous materials having a dual surface are disclosed. Also disclosed is a method for their preparation. An example of such a material is silica gel reacted with...
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5082559 |
Glass chromatography capillary with relatively thick coating
Glass capillaries having an internal diameter of a few micrometers are internally provided with a relatively thick polymer film by in-situ polymerization of suitable monomers and/or oligomers in a...
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5071610 |
Method of making a controlled pore composite polytetrafluoroethylene
A composite article having controlled void volume and mean pore size comprises: (a) polytetrafluoroethylene (PTFE) fibril matrix, and (b) insoluble, non-swellable sorptive particles enmeshed in...
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4999285 |
Chromatographic cassette
A chromatographic device is disclosed. The device comprises in combination a housing, a strip of bibulous material non-removably confined in the housing. The strip has a length and width only...
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4986909 |
Chromatography column
A chromatography column for effecting chromatographic separation of at least two components of a sample flowing through the column. The column comprises a housing and at least one solid stationary...
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4983566 |
Surface-modified adsorbent comprising metal oxide/hydroxide particles reacted with one or more perfluorinated organic acids
An active material and method of making same are disclosed comprising a metal oxide/hydroxide surface having chemically bonded to reactive sites thereon, a layer of a perfluorinated organic...
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4981785 |
Apparatus and method for performing immunoassays
An apparatus and method for performing enzyme-linked immunological sandwich assays (ELISA) by affinity chromatography. Formation of the antibody-antigen-conjugate complex, and the development of a...
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4950635 |
Method for producing dual zone materials by catalyzed halosilylation
Dual zone porous materials having an external zone and an internal zone are prepared by contacting a suspension of a porous support, such as particulate silica, in a solvent with a halosilane and a...
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4935040 |
Miniature devices useful for gas chromatography
Laminated wafers with channels formed therein define a plurality of gas chromatographic columns in a body, with substantially minimal connecting channels between an injector and a detector. One or...
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4929589 |
Metal oxide/hydroxide particles coated with phosphate esters
An active material is disclosed comprising metal oxide/hydroxide particles having chemically bonded to reactive sites on a surface thereof, a monolayer of a phosphorous-containing organic material...
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4906378 |
Composite chromatographic article
A composite chromatographic article comprising: (a) a polytetrafluoroethylene fibril matrix, and (b) non-swellable sorptive particles enmeshed in said matrix, the ratio of non-swellable sorptive...
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