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)
05/1987
05/19/1987US4666858 Adjusting ph; extracting; measuring spectrophotometrically
05/19/1987US4666856 SO2 determination by adsorption using ion exchange resin with pH buffered capacity
05/19/1987US4666776 Polymers for the purification of acarbose
05/19/1987US4666604 New elution complex more especially for affinity chromatography and affinity precipitation
05/14/1987DE3539060A1 Chromatography column tubes
05/13/1987EP0221780A2 Porous silica microspheres having silanol-enriched and silanized surfaces
05/12/1987US4665164 Etherification; chromatography
05/12/1987US4664806 Ethers having carboxy, thio, and amide groups
05/07/1987WO1987002594A1 Chromatography column using horizontal flow
05/06/1987EP0220719A2 Cyclodextrin absorbing material and its use
05/06/1987EP0220666A2 Automatic on-line chemistry monitoring system
05/06/1987CN85103044A Fast testing technology of rapeseed (oil) erucic acid
05/05/1987US4663297 Temperature programmed spectroscopy techniques
05/05/1987US4663163 Modified polysaccharide supports
05/05/1987US4662914 Flow restrictor at inlet to ionization chamber of spectrometer
04/1987
04/28/1987US4661248 Sulfonic derivatives of acylated polyethyleneimine bonded phase silica products
04/28/1987US4661138 Method of strengthening the alkali resistance of a porous glass
04/28/1987US4660974 Arrangement for determining the spectral characteristic of the refractive index of a fluid
04/28/1987CA1221080A1 Fibrous media containing millimicron-sized particulates
04/28/1987CA1221037A1 Separation process
04/23/1987DE3628474A1 Liquid chromatography column and device for using it
04/22/1987EP0219102A2 Process for injecting a minute volume of a solution and an apparatus therefor
04/22/1987EP0218848A2 Method for detecting phosphorus segregates in metallic material
04/21/1987US4659934 Method and apparatus for reducing Schlieren noise in a liquid chromatograph
04/21/1987CA1220700A1 Aqueous solution as an eluant used in liquid chromatography
04/15/1987EP0218163A2 Apparatus and method for liquid chromatography
04/15/1987EP0218089A1 Optically active (meth)-acryl amide, polymers thereof, process for their preparation and their use in the separation of racemates
04/14/1987US4658000 Polyacrylamide adhesive for fixing the sorbent layers of overpressured, one-and multilayer-chromatographic plates and a process for the preparation thereof
04/14/1987US4657742 High packing density
04/14/1987US4657676 Liquid chromatography
04/09/1987WO1987001956A1 Apparatus for, and methods of, operating upon a fluid
04/08/1987EP0217614A2 Calcium-phosphate type hydroxyapatite for chromatographic separation and process for producing it
04/08/1987EP0217510A2 Anthraquinone derivatives
04/08/1987EP0217318A2 Apparatus and method for liquid chromatography
04/08/1987CN85107185A Injecting apparatus for liquid sample
04/07/1987US4656141 High-performance liquid chromatography process and apparatus and composition of matter therefor
04/07/1987US4656140 Absorption of acetic acid by soda lime before measurement of alcohol
04/07/1987US4655917 Can be hand tightened; reusing end fittings
04/07/1987US4655095 Compound valve
04/07/1987CA1220053A1 Method for chromatographic analysis and apparatus therefor
04/02/1987DE3632226A1 Solubilisation chromatograph
04/01/1987EP0216730A2 Porous spherical glass filtrating beads and method for the manufacturing thereof
04/01/1987EP0216278A2 Spherically shaped silica particles
03/1987
03/31/1987US4654504 Water-cooled gas discharge detector
03/31/1987US4654125 Potentials, electrolysis, currents
03/31/1987US4654052 Interfaces, chromatography, mass spectrometry
03/25/1987EP0215525A2 Liquid chromatograph
03/25/1987EP0215432A2 Analysis method and analysis equipment for hop bittering components
03/24/1987US4652674 Method for monitoring the fluorescence of 4-carboxy-p-terphenyl in crude terephthalic acid
03/24/1987US4652642 Azidobenzazepines
03/24/1987US4652364 Plurality of semipermeable membrane tubes
03/24/1987US4652354 Process for moulding gels usable for thin layers electrophoresis and use thereof
03/24/1987US4652280 Adsorption material for olefins, gas chromatography column, method of selectively removing olefins from a mixture of hydrocarbons
03/24/1987CA1219569A1 Process and device for filling chromatography columns
03/24/1987CA1219468A1 Solute focusing technique for on-column injection in capillary gas chromatography
03/18/1987EP0214237A1 Method and apparatus for analyzing gases dissolved in a liquid sample.
03/18/1987CN85106413A Ceramic articles having a nonporous core and porous outer layer
03/17/1987US4651008 Sample inlet system for an electron capture detector
03/17/1987US4650964 Electrically heated transfer line for capillary tubing
03/17/1987US4650784 Bonded phase of silica for solid phase extraction
03/17/1987US4650588 Variations in electrical resistance of eluant drops
03/17/1987US4650499 Gas chromatographic apparatus and method
03/12/1987WO1987001452A1 Mass spectroscope
03/10/1987US4649124 Chromatography
03/10/1987US4648260 Helium detector
03/10/1987CA1218875A1 System and apparatus for multi-dimensional real-time chromatography
03/03/1987US4647772 For the analysis of a liquid sample having an ion source
02/1987
02/26/1987WO1987001204A1 Chemical analysis by controlled sample modulation and detection correlation
02/26/1987WO1987001133A1 Process for identifying compounds which can absorb or release elections after catalysis by elections
02/26/1987DE3530076A1 Verfahren zum nachweis von verbindungen, die katalysiert durch enzyme elektronen abgeben oder aufnehmen koennen Can deliver or store method for detecting compounds which are catalyzed by enzymes electron
02/26/1987DE3529670A1 Micro-COD apparatus for hydrogen chloride absorption
02/25/1987EP0211411A2 Method and apparatus for performing novel high-performance liquid chromatography
02/25/1987EP0211223A2 Spherical grains of poly(alpha-amino acid)and production method thereof
02/25/1987EP0211206A1 Packed fiber glass reaction vessel and method of preparation
02/24/1987US4644807 Fluid sample delivery apparatus
02/24/1987CA1218472A1 Method and apparatus for the mass spectrometric analysis of solutions
02/17/1987US4643814 Structure selective fibrous sorbents and method and apparatus for using the same
02/17/1987US4643651 Constant flow rate liquid pumping system
02/17/1987US4643649 Digital control for rapid refill of a liquid chromatograph pump
02/17/1987US4643570 Through-flow cuvette
02/10/1987US4642169 Continuous rotating electrophoresis column and process of using
02/10/1987US4641541 Internal mass spectrometer interface to a gas chromatograph
02/10/1987CA1217728A Automatic installation for liquid chromatography
02/10/1987CA1217654A Analysis of organic additives in plating baths using novel chromatographic methods in a mass balance approach
02/10/1987CA1217651A Method for rapid determination of the contents of lignin, monosaccharides and organic acids in the process solutions of sulfite pulping
02/03/1987US4640909 Chromatographic purification of urien samples for cannabinoid analysis
01/1987
01/29/1987DE3625281A1 Image processor with colour discrimination - has photoelectric members receiving colour-differentiated image from original document, and standardising members for image signal
01/27/1987US4639601 Apparatus for detecting and determining the distribution of radioactivity on a medium
01/27/1987US4639513 Chromatographic purification
01/24/1987CN85101476A Liquid color layer analyzer
01/24/1987CN85101449A Analytical equipment of imitating ke tuo pi
01/24/1987CN85101215A Liquid chromatography
01/24/1987CN85101205A Multi-channel test data processing apparatus for liquid colour spectrum
01/21/1987EP0063580B1 Metallic clad capillary tubing
01/20/1987US4638456 Spot quantitation
01/20/1987CA1216971A1 Apparatus for detecting and determining the distribution of radioactivity on a medium
01/20/1987CA1216894A1 Dual working-electrode electrochemical detector for high performance liquid chromatography
01/17/1987CN85101463A Method of ortho-benzenediphenol amine analysis
01/17/1987CN85101444A Method of chromatographic analysis and an apparatus therefor
01/17/1987CN85101147A Method and apparatus for saccharide analysis