Patents
Patents for G01N 30 - Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography (41,194)
12/1988
12/07/1988EP0294059A2 Activated and conjugated polyaryl substrates
12/07/1988EP0293540A1 Procedure for the separation and measurement of Hba1 glycosylated haemoglobin in blood samples
12/06/1988US4789783 Discharge ionization detector
12/06/1988US4789737 Oligonucleotide derivatives and production thereof
12/06/1988US4789479 Packing for chromatography
12/01/1988WO1988009201A1 Process and device for separating and cleaning molecules
12/01/1988DE3717211A1 Vorrichtung und verfahren zur trennung und reinigung von molekuelen Apparatus and method for separation and purification of molecules
11/1988
11/30/1988EP0292844A2 Device for the withdrawal and/or insertion of gaseous samples
11/30/1988EP0292612A2 Gas chromatograph, ramification piece and method for chromatographic separation
11/29/1988US4787983 Extraction with cycloalkanes, ethers, or freons"
11/29/1988US4787971 Miniaturized column chromatography separation apparatus and method of assaying biomolecules employing the same
11/29/1988US4787746 Refractometric detector for liquid phase chromatograph
11/29/1988US4787656 Capillary tubing coupler
11/29/1988US4787239 Combination with a portable helium detector
11/24/1988DE3716386A1 Method and apparatus for the automatic setting of the initial temperature in a process gas chromatograph
11/23/1988EP0292443A1 A solution for controlling the performance of the ionic exchange chromatography column of HPLC (high performance liquid chromatography) apparatuses, and a process for preparing the same
11/22/1988US4786475 Equipment for the simulated distillation by means of gas chromatography with non vaporizing direct injection
11/22/1988US4786415 Separation agent comprising aliphatic ester of polysaccharide
11/22/1988US4785661 Method for analyzing solvent extracted sponge core
11/22/1988US4785660 Process and installation for on-line analysis of a liquid product by liquid phase chromatography
11/22/1988CA1245378A1 Automatic on-line chemistry monitoring system having improved calibration unit
11/22/1988CA1245165A1 Solvent pressurization system
11/22/1988CA1245073A1 Apparatus and method for optimizing separation of an unknown sample by liquid chromatography
11/17/1988WO1988008977A1 Device for preparation of gradient solution for high-pressure liquid chromatograph
11/17/1988WO1988008976A1 Device for feeding preformed gradient solution to liquid chromatographic column
11/17/1988WO1988008891A1 METHOD OF PURIFYING AND DEPOSITING GROUP IIIa AND GROUP Va COMPOUNDS TO PRODUCE EPITAXIAL FILMS
11/17/1988EP0291194A1 Immunoassays and devices therefor
11/17/1988EP0291176A1 Solid phase assay employing capillary flow
11/17/1988DE3716992A1 Method of measuring proportions of combustible gas of low concentration in mine air
11/15/1988US4784962 Mixture of amino acid derivatives, process of producing the mixture and use of the mixture for quantitative determination of the amino acids
11/15/1988US4784494 Method and apparatus for detecting universal and selectively concentration gradients, and for deflecting a light beam in a controlled fashion
11/09/1988EP0290406A1 Low affinity adsorbent for affinity chromatography
11/09/1988EP0289755A1 Absorption column for the chromatographic separation of mixtures of substances
11/09/1988CN88202689U Chromatographic column packed with capillary
11/09/1988CN88102257A Analytical method and apparatus for characterizing latexes
11/03/1988WO1988008534A1 Immunoassays and devices therefor
11/03/1988WO1988008461A1 Sintered pellet with biochemically active layer
11/02/1988EP0289129A2 High purity protein A preparation
11/02/1988EP0288529A1 Process for separating and decanting colloids by exclusion chromatography.
11/01/1988US4782040 Reactive silane bonding to exteriors and interiors
11/01/1988US4781977 Water-insoluble resin-spacer-ligand
11/01/1988US4781904 Calcium-phosphate type hydroxyapatite for chromatographic separation and process for producing same
11/01/1988US4781893 Apparatus for determining fouling tendency of liquid hydrocarbons using polar polymeric membranes
11/01/1988US4781892 Apparatus and method for determining fouling tendency of liquid hydrocarbons
11/01/1988US4781824 Apparatus for liquid chromatography
10/1988
10/27/1988DE3711120A1 Fully automatic sample dispenser
10/26/1988EP0288425A2 An apparatus for the treatment of biological samples and treatment methods using the same
10/26/1988EP0288310A2 Substrate and process for making a substrate
10/26/1988EP0287922A2 Preparative chromatography column
10/26/1988EP0287624A1 Optical apparatus and method
10/25/1988US4780417 Rapid extraction, separation, and detection method for a separate analysis of free and total sulfites in foods by ion chromatography
10/25/1988US4780284 Gas chromatography
10/25/1988US4780116 Column packed with adsorbent having cooling tube for immersion suspended in pressure vessel with heater; hydrogen isotope separation
10/25/1988US4780113 Chromatography concentration and separation
10/20/1988WO1988008133A1 Automatic process for validation of the measurements of a chromatograph and system for its implementation
10/20/1988WO1988007886A1 Fused-silica microbore packed chromatography column with chemically modified column wall
10/19/1988EP0287470A1 Use of functional polymer resins as a stationary phase in affinity chromatography in the purification of growth factors, and purification process therefor
10/19/1988EP0287283A2 Analytical method and apparatus for characterizing latexes
10/19/1988EP0287051A2 Thin slab shaped dosimeter with a curved substrate support
10/19/1988EP0286757A2 Thin-layer chromatography flame ionization detector for quantitative analysis of chromatographically-separated substances
10/18/1988US4778909 Heating an alkoxysilane and water-coated silica in basic catalyst vapors to effect polymerization and crosslinking
10/18/1988US4778764 Detection system and method
10/18/1988US4778600 Lipophobic fluorocarbon phase rejects proteins; lipophilic partitioning phase retains small molecules; blood analysis
10/12/1988EP0286195A2 Method and apparatus for detecting low concentrations of (bio)- chemical components in a test medium using surface plasmon resonance
10/12/1988EP0285648A1 Thermal conductivity detector assembly
10/11/1988US4776690 Containing only hydrogen and oxygen; forming plasma with gas chromatograph distillation fraction
10/11/1988US4776297 Apparatus for coating thin layer chromatographic plates
10/05/1988EP0285361A2 Purification of apase-1 1 and retrieval of the nematode resistance gene
10/04/1988US4775943 Method and apparatus for determining polymer molecular weight distribution parameters
10/04/1988US4775637 An immunoassay apparatus having at least two waveguides and method for its use
10/04/1988US4775636 Blot overlay assay using colloidal metal particles
10/04/1988US4775520 Hydrolysis of tetraalkoxysilane
10/04/1988US4775481 Stabilization of flow rate in high pressure pump by control system which increases speed until equilibrium
10/04/1988US4775476 Method for membrane assisted liquid chromatography
10/04/1988CA1242595A1 Sample cell for light scattering measurements
09/1988
09/28/1988EP0284394A2 Selective high performance electrokinetic separations employing the surface of moving charged colloidal particles
09/28/1988EP0284232A1 Solid phase assay
09/27/1988US4774190 Apparatus and method for exchanging substances between fluids
09/27/1988US4774058 Apparatus for, and methods of, operating upon a fluid
09/27/1988US4773994 Liquid chromatography packing materials
09/22/1988DE3707818A1 Method and device for continuously sampling and analysing cracked gas
09/21/1988EP0282821A2 Arrangement for flow splitting in gas chromatographic analysis
09/21/1988EP0282770A1 Optically active (meth)-acrylamides, process for their preparation and their use in the separation of racemates
09/21/1988CN88200304U Multiple-function thin-layer point-mode ultraviolet analyzer
09/21/1988CN87216290U Three-purpose tester for atomic absorption, high-speed liquid chromatography spectrophotometer
09/20/1988US4772635 Bead-shaped crosslinked copolymers containing epoxide groups and basic amino groups, a process for their preparation and their use
09/20/1988US4772388 Apparatus for liquid chromatography
09/20/1988US4772296 Method of purifying and depositing group IIIa and group Va compounds to produce epitaxial films
09/20/1988US4771628 Chamber for chromatographic analyses
09/20/1988CA1242151A1 Chromatographic plate
09/14/1988EP0282232A2 Monitoring drilling mud circulation
09/14/1988EP0282231A2 Monitoring drilling mud
09/14/1988EP0282177A2 Anion exchange resin with an acrylic resin outer layer
09/14/1988EP0281966A2 Thermal conductivity detector
09/14/1988EP0281831A1 Piece of ramification for the switch-over of a gas passage between two gas-chromatographic columns
09/07/1988EP0281368A2 Enzyme immobilization and bioaffinity separations with perfluorocarbon polymer-based supports
09/07/1988EP0281294A2 Fluid delivery system with deficit flow compensation
09/07/1988EP0281221A2 Atomic absorption analysis apparatus
09/07/1988EP0108813B1 Grafted chromatographic filler and method for analyzing enantiomer mixture using same
09/07/1988CN87100783A Thermostatic water-bath method for coating chromatographic column with quartz capillary