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)
11/1982
11/02/1982US4357668 Base line correction method and apparatus
11/02/1982US4357143 Determining ion concentration
11/02/1982US4356909 Fraction collector
11/02/1982US4356733 Dosing device for gas chromatography
10/1982
10/27/1982EP0063435A1 Chromatographic method for the detection of drugs
10/26/1982US4356236 Spherically shaped material comprising acylated product of de-N-acetylated chitin
10/26/1982US4356156 Zeolites bearing fluoride anions
10/26/1982US4355533 Gas measurement and analysis system
10/26/1982CA1134248A1 Toxic-monitoring badge and method of use
10/26/1982CA1134171A1 Method and device for sample injection under controlled conditions of temperature profile into gas chromatographic columns
10/19/1982US4354932 Useful for liquid chromatogrphy
10/19/1982US4354901 Cellulosic webs
10/12/1982US4353801 Special solvent column for GPC and GPC method using the same
10/12/1982US4353243 Flexible diaphragm controlled valve
10/12/1982US4353242 Multichannel detection and resolution of chromatographic peaks
10/05/1982US4352780 Device for controlled injection of fluids
10/05/1982US4352636 Dual piston pump
10/05/1982US4352570 Vibratory treatment apparatus and method
09/1982
09/28/1982US4351922 Process for the production of highly water-absorbing but less water-soluble hydrogels
09/28/1982US4351909 A microporous synthetic resin substrate, and synthetic resin particles
09/28/1982US4351802 Headspace-sampling apparatus
09/28/1982US4351800 Thin layer plate chromatography apparatus
09/28/1982US4351643 Method for concentrating a low-concentration element in a solution
09/28/1982US4351385 Temperature control system for chromatographs
09/28/1982CA1132371A1 Chromatographic apparatus and method
09/28/1982CA1132370A1 Method for recycling a carrier gas from the trapping system to the inlet of a gas chromatographic separation unit brevat
09/22/1982EP0060709A1 Method and system for multi-dimensional real-time chromatography
09/22/1982EP0060700A1 Assay method and device
09/21/1982US4350760 Method for the separation of a protein substance from a solution containing the same by affinity filtration and application of said method to enzymatic assays
09/21/1982US4350595 Separation column for liquid chromatography and sealing arrangement therefor
09/21/1982US4350586 Apparatus useful with a chromatography column
09/21/1982US4350496 Measuring the aromatic reactivity of a hydrocarbon composition
09/21/1982US4350037 Personal gas monitor
09/15/1982EP0060082A1 Electrochemical flow cell for liquid chromatography
09/14/1982CA1131624A1 Spherically shaped material comprising acylated product of de-n-acetylated chitin
09/07/1982US4348374 Charcoal coated adsorbent device
09/07/1982US4348286 Gradient
09/07/1982CA1131047A1 Thermal control means for liquid chromatograph sample
09/02/1982WO1982002952A1 Double beam photometer for measuring fluid samples
08/1982
08/31/1982US4347215 Device for the automation of at least one operation in an injector for gas chromatographic columns
08/31/1982US4347131 Liquid chromatographic pump module
08/31/1982US4346610 Device for introducing micro amount of sample into an analyzing apparatus
08/31/1982CA1130708A1 Method and apparatus suitable for repeated, accurate chemical analyses
08/25/1982EP0058381A1 A liquid chromatography column, process for preparing the same and its use for fractionation
08/25/1982EP0058358A1 Improved anion-exchange chromatographic packing composition
08/25/1982EP0058357A1 Improved chromatographic analytical column for anion determination
08/24/1982US4346055 Automatic ignition system for a flame ionization detector
08/24/1982US4346001 Linear overpressured thin-layer chromatographic apparatus
08/24/1982US4345463 On-line gas measurement and analysis system
08/18/1982EP0057907A1 Apparatus for separating blood components
08/17/1982US4344917 Sample inlet for analysis instrument and method of sample analysis
08/17/1982CA1129782A1 Process for increasing the resistance to water of pre-coated preparations for chromatography
08/10/1982US4343767 Chromatography apparatus with electrochemical detector having carbon-black containing working electrode
08/05/1982WO1982002596A1 Photometric flow cell
07/1982
07/27/1982US4341635 Microchromatographic column and method
07/27/1982US4341634 Chromatography
07/20/1982US4340483 Polar polymeric sorbent based on glycidyl esters for gas and liquid chromatography
07/13/1982US4339759 Collector controller for chromatograph
07/13/1982US4339500 Hydrophilic packing material for chromatography
07/13/1982US4338811 Method and apparatus for diagnosis of disease
07/07/1982EP0055624A1 Gas monitor
07/06/1982US4338396 Heart attack screening method and process
07/06/1982CA1127094A1 Gas chromatographic chamber
06/1982
06/30/1982EP0054969A1 A process for the separation of elements by chromatography
06/22/1982US4335620 Temperature controlled sample carrier
06/22/1982CA1126140A1 Method and apparatus for chemical analysis of specimens
06/22/1982CA1126051A1 Fluid sample injection apparatus for fluid chromatography
06/16/1982EP0053768A2 Flow combining or distributing assembly for use in connecting capillaries of chromatographic analysis apparatus
06/15/1982US4335226 Polymeric carrier having covalently bonded affine residue group
06/15/1982US4334435 Sealing apparatus
06/08/1982US4333500 Fluid actuated valve
06/08/1982CA1125051A1 Chromatography column
06/02/1982EP0052769A1 Method for analytical assays and rotor element for carrying out the method
06/01/1982US4332771 Method and device for determining the alcohol content of a person's breathing
05/1982
05/27/1982WO1982001663A1 A frame for storing and attaching a gas chromatograph column
05/27/1982WO1982001662A1 A system for circulating air in a gas chromatograph oven
05/27/1982WO1982001661A1 An arrangement for attaching a gas chromatograph column
05/26/1982EP0052328A2 Analytical device
05/19/1982EP0051778A2 A device for vaporization injection in a gas-chromatographic column
05/18/1982US4330295 Microwave discharge degradation of organics for analysis
05/13/1982WO1982001578A1 Metallic clad capillary tubing
05/11/1982CA1123413A1 Bonded organo-pellicular packings for chromatographic columns
05/05/1982EP0050646A1 Thermal control means for liquid chromatograph sample
04/1982
04/28/1982EP0050389A1 Derivatized agarose and method of making and using same
04/27/1982US4326837 Pumping apparatus using a stepping motor
04/27/1982CA1122553A1 Process for the separation of aromatic compounds from hydrocarbon mixtures
04/22/1982EP0042393A4 Chromatographic sheet of layer for pressurized layer chromatographic apparatus.
04/21/1982EP0049850A1 Chromatograph for high-pressure chromatography
04/20/1982US4325907 Pyrolysis product gases analyzing method and system
04/20/1982CA1122208A1 Adsorbent for the affinity-specific separation of macromolecular materials
04/14/1982EP0049440A1 Device and valve for injecting samples in liquid chromatography
04/13/1982US4324661 Centrifugal
04/13/1982US4324131 Liquid chromatography detector
04/13/1982CA1121944A1 Polar polymeric sorbentbased on glycidyl esters for gas and liquid chromatography
04/07/1982EP0048949A1 Method and apparatus for the treatment of waste water for analytic techniques
04/07/1982EP0048917A1 A method and apparatus for volumetrically controlled and reproducible introduction of small amounts of liquid samples into chromatographic analysis systems
04/06/1982US4323664 Process for producing granular polymer having uniform fine particle size
04/06/1982CA1121177A1 Apparatus for feeding carrier gas to on-column injectors
03/1982
03/30/1982US4322542 Reaction of a silica and an aminoalkylene silanetriol
03/23/1982US4321138 Method and apparatus for preparative countercurrent chromatography employing a rotating column assembly