| 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) |
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| 01/11/1977 | US4002052 Method for the rapid analysis of a mixture of a number of substances by chromatography |
| 01/04/1977 | US4001387 Technetium-99m labeling |
| 01/04/1977 | US4001111 Dual temperature gradient elution liquid chromatography |
| 12/28/1976 | US4000070 Apparatus for protecting a liquid chromatography column |
| 12/28/1976 | US3999439 High pressure sample injector and injection method |
| 12/14/1976 | US3997836 Detector for chromatographs |
| 12/14/1976 | US3997644 Blending polyethylene with a thermoplastic resin |
| 12/14/1976 | US3997298 Liquid chromatography-mass spectrometry system and method |
| 12/07/1976 | US3996017 Cassette separating column system for chromatography |
| 12/07/1976 | US3996009 Specific compound detection system |
| 12/07/1976 | US3996008 Specific compound detection system with gas chromatograph |
| 12/07/1976 | US3996004 Measuring nitrate and nitrite compound content in a sample |
| 12/07/1976 | US3996003 Measuring the n-nitroso compound content of a sample |
| 11/30/1976 | US3994805 Angle rotor countercurrent chromatography |
| 11/30/1976 | US3994587 Densitometer |
| 11/16/1976 | US3992175 Method of and device for chromatographic separation of fluid mixtures into fractions |
| 11/16/1976 | US3992174 Specimen capsule and process for gas chromatography |
| 11/16/1976 | US3991626 Analysis system for an atmosphere tracer dispersion system |
| 11/09/1976 | US3991018 Method for preparation of cation exchangers by substitution of hydrophilic polymeric gels of crosslinked hydroxyalkyl acrylates and hydroxyalkylacrylamides |
| 11/09/1976 | US3990476 High temperature gas chromatograph valve |
| 11/02/1976 | US3989649 Process for production of spherical porous fillers for liquid chromatography by suspension polymerization of monovinyl and polyvinyl aromatic monomers in the presence of paraffin wax |
| 11/02/1976 | US3988921 Method and apparatus for spotting chromatographic elements |
| 10/19/1976 | US3987304 Infrared absorption spectroscopy employing an optoacoustic cell for monitoring flowing streams |
| 10/12/1976 | US3985441 Multi-channel spectral analyzer for liquid chromatographic separations |
| 10/12/1976 | US3985166 High-pressure sample injection for liquid chromatography |
| 10/12/1976 | US3985021 High performance liquid chromatography system |
| 10/12/1976 | US3985019 Liquid chromatography system with solvent proportioning |
| 10/12/1976 | US3985016 Chromatograph |
| 10/05/1976 | US3984315 Chromatography |
| 10/05/1976 | US3984205 Flame ionization detector |
| 09/28/1976 | US3983299 Inorganic support, organosilane |
| 09/21/1976 | US3981801 Gradient storage method for liquid chromatography |
| 09/21/1976 | US3981620 Pumping apparatus |
| 09/21/1976 | US3981179 Fluid detecting system |
| 09/07/1976 | US3978575 Method and device for extracting filter frits from liquid chromatographic columns |
| 08/31/1976 | US3978415 Chromatographic analyzer signal resolution |
| 08/24/1976 | US3975946 Liquid chromatography sample measuring and introducing apparatus |
| 08/17/1976 | US3975104 Convergent light illuminated flow cell for liquid chromatography |
| 08/10/1976 | US3973792 Connecting device for connecting chromatographic separating columns of glass |
| 07/27/1976 | US3971842 Continuous displacement chromatographic separation |
| 07/20/1976 | US3970561 Separation of compounds differing in isotopic composition |
| 07/06/1976 | US3967932 Rapid analysis of cation contained in liquid |
| 07/06/1976 | US3967931 Flame aerosol detector for liquid chromatography |
| 07/06/1976 | US3967928 Method for quantitatively analyzing substances containing elements other than carbon, hydrogen and oxygen and volatile organic compounds |
| 06/29/1976 | US3966609 Chromatographic device |
| 06/29/1976 | US3966596 High performance, cation-exchange chromatography on surface-sulfonated compositions |
| 06/29/1976 | US3966580 Novel protein-immobilizing hydrophobic polymeric membrane, process for producing same and apparatus employing same |
| 06/29/1976 | US3966411 Analysis for nitrogen compounds by gas chromatography |
| 06/29/1976 | US3966410 Group extraction of organic compounds present in liquid samples |
| 06/22/1976 | US3964872 Injecting device of a solvent-free sample for a gas analyzer |
| 06/22/1976 | US3964294 Technique and system for coding and identifying materials |
| 06/15/1976 | US3963614 Apparatus for removing unnecessary components from samples |
| 06/15/1976 | US3963422 Counter flowing positive ion-negative ion neutralization chromatograph |
| 06/15/1976 | US3963421 Thin layer chromatography |
| 06/15/1976 | US3962907 Viscometer |
| 06/08/1976 | US3961534 Two position rotary valve for injecting sample liquids into an analysis system |
| 06/01/1976 | US3961007 Slurrying in acetone and water, agitation, shearing |
| 06/01/1976 | US3960720 Gel product for separation purposes and method of using the product for hydrophobic salting out adsorption |
| 06/01/1976 | US3960003 Automatic system for high pressure liquid chromatography |
| 05/25/1976 | US3958944 Vial assembly |
| 05/25/1976 | US3958898 Pump control systems |
| 05/18/1976 | US3957741 Crosslinked, porous, polyacrylate beads |
| 05/18/1976 | US3957470 Evacuation chambers |
| 05/11/1976 | US3956272 Polysaccharide gels |
| 05/11/1976 | US3956179 Stationary phase component for catalysis or chromatography |
| 05/04/1976 | US3954651 (-(trimethylsilyl) carboxamides |
| 05/04/1976 | US3954617 Apparatus for liquid chromatography having automatic sampling system |
| 05/04/1976 | US3954616 Chromatographic apparatus |
| 05/04/1976 | US3954608 Method and device for rapid chromatographic separation |
| 05/04/1976 | US3954413 Ionization of organic compounds using a flame of formic acid |
| 05/04/1976 | US3954408 Radioactive tagging |
| 05/04/1976 | US3954291 Reusable sealed coupling for glass tubes |
| 04/27/1976 | US3953360 Preparation of selective adsorbing particles |
| 04/13/1976 | US3950104 Refractive index and flow rate detector and method |
| 04/13/1976 | US3949806 Method and apparatus for refluxation in microliter scale |
| 04/06/1976 | US3948602 Analytical method of monitoring air for chloromethyl ether |
| 03/30/1976 | US3947612 Method of forming active surfaces on solids |
| 03/16/1976 | US3944389 Detection of chloromethyl methyl ether or bis-chloro-methyl ether |
| 03/02/1976 | US3941567 Device for the analysis of microscopic objects by laser pyrolysis and chromatography in the gaseous phase |
| 03/02/1976 | US3940994 High pressure sample injection apparatus and method |
| 02/24/1976 | US3940614 Method and apparatus for collection and analysis of mercury in the atmosphere |
| 02/24/1976 | US3939713 Septum mounting and shielding assembly for sample injection in an analytical instrument |
| 02/10/1976 | US3937062 Zeroing circuit |
| 02/10/1976 | US3937061 Detector for a chromtograph |
| 02/03/1976 | US3936374 Variable jet separator |
| 01/27/1976 | US3935097 Hydrogen fluoride-water |
| 01/27/1976 | US3934981 Apparatus for detection of chloromethyl methyl ether or bis-chloromethyl ether |
| 01/27/1976 | US3934456 Solvent gradient generator for chromatography systems |
| 01/20/1976 | US3934193 Electrolytic conductivity detector |
| 01/20/1976 | US3933431 Method and apparatus for sampling atmospheric mercury |
| 01/20/1976 | US3933430 Constant flow system for detection of amino acids |
| 01/13/1976 | US3932229 Method of sample application to gel electrophoresis media |
| 01/13/1976 | US3932067 Liquid chromatography apparatus and method |
| 01/06/1976 | US3930973 Electrophoretic process |