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)
03/1982
03/18/1982WO1982000774A1 Molecular separation column and use thereof
03/18/1982WO1982000773A1 Liquid chromatographic method and apparatus with hollow fiber device for post-column derivatization
03/17/1982EP0047617A2 Molecular separation column and use thereof
03/16/1982US4319975 Derivatized agarose and method of making and using same
03/16/1982US4319883 Method for determining catecholic compounds and their related compounds
03/16/1982CA1119832A1 Polymer characterization apparatus
03/10/1982EP0047064A1 Process for preparing porous, spherical cellulose particles
03/02/1982CA1119102A1 Process and equipment for chromatographic separation of fructose/dextrose solutions
02/1982
02/23/1982US4316382 Detector with intermittent flow
02/23/1982US4316381 Modulated detector
02/17/1982EP0045953A1 A process for the separation of C8 aromatic hydrocarbons from their mixtures
02/16/1982US4315812 Apparatus for continuous electrochromatographic separation
02/16/1982CA1118364A1 Charcoal coated absorbent device
02/16/1982CA1118346A1 Process for production of protein bound gel useful in radioimmunoassay columns
02/16/1982CA1118231A1 Flame head for flame photometric detector used in gas chromatography
02/16/1982CA1118186A1 Method for use of a kit for school chemical and biochemical experimentation
02/10/1982EP0045554A1 Process for measuring one or more polluting components in a certain atmosphere
02/09/1982US4314971 Molecular separation and isoenzyme analyzers
02/09/1982US4314823 Combination apparatus and method for chromatographic separation and quantitative analysis of multiple ionic species
02/02/1982US4314343 Method and apparatus for detecting and integrating chromatographic peaks
02/02/1982US4313906 Two dimensional two phase thin layer chromatography plate and method
02/02/1982US4313828 High pressure tubing coupler
01/1982
01/26/1982US4313015 Separation process
01/26/1982US4312980 Suspension in water of solution of cellulose triacetate in organic solvents followed by evaporation of solbent and saponification
01/26/1982US4312835 Thermal control means for liquid chromatograph samples
01/26/1982CA1117225A1 Sampling system for mass spectrometer
01/20/1982EP0043946A1 Thermostatic device for liquid chromatographs
01/19/1982US4311668 Micro cleanup and concentration apparatus for trace residue analysis by gas liquid chromatography
01/19/1982US4311664 Flame-photometric detector burner of gas chromatograph
01/19/1982US4311586 Solvent mixing in HPLC using low pressure solvent metering pumps
01/19/1982US4311387 Flow-through sample cell and collecting and illuminating optics for liquid chromatography
01/19/1982CA1116584A1 Hydrophilic separating carrier and preparation thereof
01/12/1982US4310420 Mobile phase supplying method in the liquid chromatography and apparatus therefor
01/12/1982US4309898 Signal-to-noise ratio in chromatographic analysis
01/12/1982CA1116065A1 Method and apparatus for automatically determining chlorine and chlorine dioxide concentrations
01/12/1982CA1116063A1 Monitoring device
01/12/1982CA1115983A1 Device for high efficiency continuous countercurrent extraction using a rotating helical tube
01/06/1982EP0043325A1 Hydrophilic material for sorbing heavy metals, method for making such material and its use
01/06/1982EP0043159A1 Porous inorganic support material coated with an organic stationary phase, for use in chromatography, and process for its preparation
01/05/1982US4309286 Lower sealing means for chromatographic column
01/05/1982CA1115551A1 Process for packing chromatographic columns
01/05/1982CA1115546A1 Apparatus and method for determining the concentration in a sample
12/1981
12/30/1981EP0042683A1 Process for the production of adsorptive gas traps
12/30/1981EP0042560A2 A process for producing and obtaining anaphylatoxin- and cocytotaxin-containing leucotaxine preparations and of anaphylatoxin and cocytotaxin proteins in molecularly homogeneous, biologically active form
12/30/1981EP0042393A1 Chromatographic sheet of layer for pressurized layer chromatographic apparatus.
12/29/1981US4308254 Material able to fix reversibly biologial macromolecules, its preparation and its application
12/22/1981US4307453 Sloping baseline compensation for a chromatographic analyzer
12/22/1981US4306977 Chromatography developing chamber
12/16/1981EP0041793A1 Flow monitoring method and apparatus
12/16/1981EP0041608A2 Column for liquid chromatography
12/15/1981US4305906 Apparatus for analyzing oxygen, nitrogen and hydrogen contained in metals
12/15/1981US4305276 Temperature controlled oven chamber for gas chromatography
12/15/1981US4305275 Chromatographic apparatus and method of operation
12/15/1981CA1114547A1 Borane reducing resins
12/08/1981US4304997 Electron capture detector with thermionic emission electron source
12/08/1981CA1114033A1 Voltage offset network
12/02/1981EP0040798A2 Ion exchange chromatography with indirect photometric detection
12/02/1981EP0040663A1 Column closure
11/1981
11/24/1981US4302422 System and process for total gaseous nonmethane organic analysis
11/24/1981US4302421 Method and apparatus for flushing a delivery tube for automatic liquid sample supply apparatus
11/24/1981US4302222 Methods and apparatus for continuous preparative chromatographic separation of fluid mixtures
11/18/1981EP0040124A1 Hydrophilic copolymers based on N-tris(hydroxy-methyl)methylacryl amide, process for their preparation, aqueous gel of these copolymers and their use as ion exchangers
11/17/1981US4301139 For determining a ligand such as an antigen or antibody
11/17/1981US4300393 Sample introduction apparatus for gas chromatographic analysis using packed or capillary bore open tubular columns and method of testing
11/17/1981CA1112634A1 Separating materials for thin layer chromatography and their preparation
11/10/1981US4299814 Radioimmunoassay of MIF
11/04/1981EP0038826A1 Microchromatographic device and method for rapid determination of a desired substance
11/03/1981US4298795 Method and apparatus for introducing samples to a mass spectrometer
11/03/1981US4298500 Rapid separation of multi-sited biopolymers
10/1981
10/29/1981WO1981003069A1 Thermal control means for liquid chromatograph sample
10/28/1981EP0038720A1 Liquid chromatography apparatus and method employing ion concentration
10/28/1981EP0038571A2 Water-resistant reversed-phase thin layer chromatographic plate and a method for its preparation
10/27/1981US4296634 Septum for use in gas chromatography and method of operation
10/27/1981CA1111415A1 Chromatographie separation and purification of proteins
10/20/1981US4296322 Method for analyzing organic substances
10/20/1981US4295968 Silanized inorganic oxide absorbent
10/20/1981US4295856 Nitrosamine specificity for electrolytic conductivity detector
10/20/1981CA1110871A1 Method for the determination of the organic carbon content of raw rocks and similar
10/13/1981US4294799 Preventing boiling of a liquid
10/13/1981US4294117 Sample charger for a gas chromatograph
10/13/1981CA1110564A1 Process and laboratory equipment for determining the thermal cracking behavior of hydrocarbon feeds for cracking furnaces
10/13/1981CA1110467A1 Methods to determine a diagnostic indicator of blood sugar conditions and liquid chromotographic columns therefor (cyanide free)
10/13/1981CA1110465A1 Process and device for the evaluation of photometric measurement values
10/06/1981US4293436 Phosphor, carboxylic acid carrier
10/06/1981US4293422 Adsorption
10/06/1981US4293415 Silica chromatographic column
10/06/1981US4293316 Inlet system for a gas analyzer
10/06/1981US4293308 Combustion in helium, catalytic oxidation and reduction, gas chromatography, flame photometry
10/06/1981CA1110084A1 Pressure compensation method and apparatus for a chromatograph
09/1981
09/29/1981US4292042 Analysis of vinyl acetate
09/29/1981US4292041 Thin layer chromatography
09/29/1981CA1109768A1 Pneumatic valve apparatus
09/23/1981EP0036303A1 Process for analyzing anions and process for treating radioactive liquid waste utilizing the same
09/22/1981US4290892 Tetra-substituted amino silane bonded to porous packing material
09/22/1981US4290776 Method for analyzing acidic substances by high speed liquid chromatography
09/22/1981US4290775 Ion exchanging
09/17/1981WO1981002527A1 Column for liquid and gas chromatography
09/16/1981EP0035983A1 Column for liquid and gas chromatography
09/15/1981US4289975 Dissipating electrical charge
09/15/1981US4289748 Ultrasensitive enzymatic radioimmunoassay method