| 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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| 08/22/1991 | WO1991012626A1 Chemical sensors based on polymer swelling |
| 08/21/1991 | WO1991012866A1 Chromatography purification column |
| 08/21/1991 | EP0442224A2 Method and apparatus for generating a high purity chromatography eluent |
| 08/21/1991 | CA2076049A1 Chromatography purification column |
| 08/21/1991 | CA2036631A1 Aminoguanidine assay and applications thereof |
| 08/20/1991 | US5041226 Separating with an agent comprising aliphatic ester of polysaccharide |
| 08/17/1991 | WO1990009233A1 Apparatus and method for delivering supercritical fluid |
| 08/14/1991 | EP0440732A1 Isolation of oligosaccharides |
| 08/14/1991 | EP0407560A4 Chromatography on a continuous polymer |
| 08/13/1991 | US5040126 Equilibrium pressure |
| 08/13/1991 | US5039614 Method and apparatus for collecting samples for analysis of chemical composition |
| 08/13/1991 | US5039489 Apparatus for catalyst analysis |
| 08/13/1991 | US5039426 Process for continuous particle and polymer separation in split-flow thin cells using flow-dependent lift forces |
| 08/13/1991 | US5039409 Chromatography apparatus |
| 08/07/1991 | EP0440577A1 Interferometric measurement arrangement |
| 08/07/1991 | EP0440342A2 Laser excited confocol microscope fluorescence scanner and method |
| 08/07/1991 | EP0439508A1 Polyethylene glycolcol (peg)-protein adducts and process for their fractionation |
| 08/07/1991 | CN2082416U Automatic controller of constant temperature thin-layer development |
| 08/06/1991 | US5037611 Sample handling technique |
| 08/06/1991 | US5037553 Adhesion to polyolefin tube; solvent removal; chromatographic analysis |
| 08/06/1991 | US5037544 Keyed column chromatography apparatus |
| 08/06/1991 | US5037200 Laser-operated detector |
| 08/06/1991 | US5037199 Ball lens micro-cell |
| 07/31/1991 | EP0439318A2 Doped sol-gel glasses for obtaining chemical interactions |
| 07/31/1991 | EP0439247A1 Supports for gas chromatography comprising aggregates of finely divided carbon particles and process for preparing the same |
| 07/31/1991 | EP0438618A1 Apparatus for thermostating the mobile phase in a liquid chromatograph |
| 07/31/1991 | EP0438402A1 Panel of separate peptides |
| 07/31/1991 | CN1053445A Isolation of alpha 1-antitrypsin from human plasma and construction of kit useful for detecting alpha 1-antitrypsin levels in blood |
| 07/30/1991 | US5036014 Deuterated cannabinoids as standards for the analysis of tetrahydrocannabinol and its metabolites in biological fluids |
| 07/30/1991 | US5035138 Mass flow sensor having wide dynamic range |
| 07/26/1991 | WO1991011241A1 Coated media for chromatography |
| 07/24/1991 | WO1991011712A1 Method and apparatus for determining the heating value of a gaseous fuel |
| 07/24/1991 | EP0483143A4 Membrane affinity apparatus and purification methods related thereto. |
| 07/24/1991 | EP0438184A1 Apparatus for effecting extraction |
| 07/24/1991 | EP0437968A2 Video densitometer |
| 07/24/1991 | EP0437829A1 Method for distinguishing mixtures of chemical compounds |
| 07/24/1991 | EP0437667A2 System and method for automated cool on-column injection with column diameters less than 530 um |
| 07/24/1991 | CA2074254A1 Method and apparatus for determining the heating value of a gaseous fuel |
| 07/23/1991 | US5034194 Chambers for chromatography for mixing gases or liquids |
| 07/23/1991 | US5034193 Automated preparative gas chromatograph |
| 07/23/1991 | CA1286611C Thin-layer rod for chromatography |
| 07/17/1991 | EP0360862A4 Isotope-ratio-monitoring gas chromatography-mass spectrometry apparatus and method |
| 07/17/1991 | CN1053128A Method for determination of 18 compound amino-acids injection liq. by hplc |
| 07/17/1991 | CA2033008A1 Video densitometer |
| 07/16/1991 | US5032283 Low dispersion fluid conduit useful in chromatography systems |
| 07/16/1991 | US5032277 Optical resolution with β-1,4-mannan tribenzoate |
| 07/16/1991 | US5032156 Device for performing a sorption process |
| 07/16/1991 | US5032151 Chromatography |
| 07/16/1991 | US5031449 Copper or oxide particles in ionomer |
| 07/16/1991 | US5031448 Exhaust valve for supercritical fluid chromatograph |
| 07/16/1991 | CA1286389C Automatic pipetting apparatus |
| 07/10/1991 | EP0436179A1 Packing material for reversed phase chromatography and process for its preparation |
| 07/10/1991 | EP0436086A1 Isolation of alpha-1-antitrypsin from human plasma and construction of a kit useful for detecting alpha 1-antitrypsin levels in blood |
| 07/10/1991 | CN2080674U Color matching chromatograph |
| 07/10/1991 | CN2080673U Multipurpose sample injector for gas chromatograph or chromatograph-mass spectrometer |
| 07/09/1991 | US5030826 Single port thermospray ion source with coaxial vapor flow |
| 07/09/1991 | US5030611 Porous ceramics material |
| 07/09/1991 | US5030578 Serum protein removal, chromatography |
| 07/09/1991 | US5030558 Qualitative immunochromatographic method and device |
| 07/09/1991 | US5030354 Separation agent for optical isomers |
| 07/09/1991 | US5030352 Adsorption of hydrophilic-hydrophobic molecules onto hydrophobic substrate, then crosslinking to form durable hydrophilic film |
| 07/09/1991 | CA1285868C Qualitative immunochromatographic method and device |
| 07/09/1991 | CA1285867C Immunochromatographic method and device |
| 07/06/1991 | CA2033439A1 Process for the elementary analysis of a specimen by high frequency inductively coupled plasma mass spectrometry and apparatus for carrying out this process |
| 07/03/1991 | EP0434836A1 Method for purifying tenascin |
| 07/02/1991 | US5028696 Separation/purification of monoclonal antibodies/proteins |
| 07/02/1991 | US5028544 Method of analysis of organic compounds in chromatography and apparatus for performing this method |
| 07/02/1991 | US5028243 Gas chromatography methods and apparatus |
| 07/02/1991 | US5027643 Method and apparatus for detecting low volatility atmospheric vapors |
| 07/02/1991 | US5027499 Diposition of wall; dissolving; thermoconductivity recording |
| 06/27/1991 | WO1991009070A1 Fluorinated poly(naphthyl ethers) |
| 06/27/1991 | WO1991008816A1 Improved apparatus for countercurrent chromatography separations and stable methods for monitoring the effluent thereof |
| 06/26/1991 | EP0433418A1 Derivatisation reagents for use in the hplc-ecd analysis of peptides and proteins |
| 06/25/1991 | US5026841 Process for the preparation of finely divided porous cellulose particles |
| 06/25/1991 | US5026826 Human neutrophilic granulocyte end-stage maturation factor and its preparation and use |
| 06/18/1991 | US5024952 Method for obtaining analytes from liquid menstrua for analysis |
| 06/18/1991 | US5024758 Horizontal flow-through coil planet centrifuge with multilayer plural coils in eccentric synchronous rotation, suitable for counter-current chromatography |
| 06/18/1991 | US5024749 Ion exchange resin separators |
| 06/13/1991 | WO1991008472A1 Process and apparatus for simultaneous measurement of sulfur and non-sulfur containing compounds |
| 06/13/1991 | WO1991008466A1 Selective detection of vapors |
| 06/12/1991 | EP0431950A1 Assaying interferons |
| 06/12/1991 | EP0431910A1 Detection of chemicals |
| 06/12/1991 | EP0431324A1 Pyridine-containing alkoxysilanes bonded to inorganic supports and processes of using the same for removing and concentrating desired ions from solutions |
| 06/12/1991 | EP0431251A1 Gas chromatograph/autosampler coupling assembly |
| 06/12/1991 | EP0431157A1 Method and apparatus for obtaining analytes from liquid menstrua for analysis |
| 06/12/1991 | EP0431080A1 Compositions and methods for drug delivery and chromatography |
| 06/11/1991 | US5023061 Chromatographic separation of zirconium isotopes with anhydrous readily recyclable eluents |
| 06/11/1991 | US5022756 Method and apparatus for spectrochemical analysis having maximum repeatability |
| 06/11/1991 | US5022755 Gas chromatography apparatus |
| 06/09/1991 | WO1991009307A1 Explosive detection screening system |
| 06/08/1991 | CA2031450A1 Method of assaying or analyzing subtypes of human leukocyte interferons or their antibodies, and antibodies to be used therefor |
| 06/05/1991 | CN2078443U Chromatographic switching device |
| 06/05/1991 | CN2078442U Kaye nitrogen analyzer |
| 06/05/1991 | CN1051980A Cancerous marker and the check method of cancer with it |
| 06/04/1991 | US5021600 New silylating agent for the preparation of chromatographic supports |
| 06/04/1991 | US5021162 By continuous percolation of liquid with pressurization to pack |
| 05/29/1991 | EP0429082A2 Method for analysis of catecholamine |
| 05/28/1991 | US5019517 System, detector and method for trace gases |
| 05/28/1991 | US5019270 Perfusive chromatography |
| 05/28/1991 | US5018554 Device for the damping of pumps with intermittent delivery |