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)
09/1979
09/04/1979US4166379 Apparatus for the detection of volatile organic substances
08/1979
08/28/1979US4165644 Apparatus for introducing samples into high pressure gas chromatographs or liquid chromatographs
08/22/1979EP0003617A1 Commutation device comprising a branching between two gas chromatographic columns
08/21/1979US4165284 Safety device for chromatography apparatus
08/21/1979US4165219 Analysis of solutions using chromatographic column
08/21/1979CA1060919A1 Chromatographic column fittings
08/14/1979CA1060342A1 Fibres incorporating antibodies, antigens and antisera, method for their preparation and their use
08/09/1979WO1979000541A1 Improvements in or relating to media for affinity chromatography
07/1979
07/31/1979US4162977 Means for removably securing separation column within column chromatography apparatus
07/31/1979US4162761 Flow-through coil planet centrifuges with adjustable rotation/revolution of column
07/31/1979US4162689 Time division flow control
07/31/1979CA1059411A1 Competitive binding thyroid assay with improved bound-free separation step
07/17/1979US4161508 Electromagnet-responsive pipette
07/10/1979US4160728 Bimodal chromatographic resolving zone
07/10/1979CA1058337A1 Process for large scale chromatography
07/10/1979CA1057975A1 Fluid detecting system with sample and reference cells
07/10/1979CA1057972A1 Densitometer
07/03/1979US4159894 Method for determining formulation and chemical structure of materials by improved pyrolysis gas chromatography
06/1979
06/28/1979WO1979000359A1 Pneumatic valve apparatus
06/26/1979US4159523 Voltage offset network
06/26/1979US4159284 Process for separation of hydrocarbon mixture
06/26/1979CA1057180A1 Hydrophobic polymeric membrane
06/26/1979CA1057134A1 Pneumatic system for solder leveling apparatus
06/19/1979US4158630 Chromatographic multi-sample valving apparatus
06/19/1979US4158626 Of silicon dioxide
06/19/1979CA1056704A1 Method for quantitatively analyzing substances containing elements other than carbon, hydrogen and oxygen and volatile organic compounds
06/12/1979US4157894 Using polystyrene or phenol-formaldehyde resin to absorb active saponins, silylation, separation by gas-liquid chromatography
06/05/1979US4157299 Two-phase filter and thin layer chromatography process
06/05/1979US4157040 Apparatus for collecting pyrolysates from a gas-cooled dynamoelectric machine
06/05/1979CA1055723A1 Chromatograph injection system
05/1979
05/29/1979CA1055405A Method for prolonging the breakthrough of volatile substances through adsorbent-containing air purifying devices
05/22/1979US4155846 Chromatography
05/22/1979US4155683 System for and a method of providing a liquid chromatography eluent
05/15/1979US4154583 Automated temperature programmed preparative chromatography
05/08/1979US4153076 Pneumatic valve apparatus
05/08/1979CA1054128A1 Cellulose microcapsules and preparation thereof
05/08/1979CA1054050A1 Gel column device and use in blood purification and immunoassay
05/08/1979CA1053926A1 Carbon monoxide detection apparatus and method
05/01/1979US4151741 Method and apparatus for gas chromatographic analysis
05/01/1979CA1053550A1 Rapid analysis of trace components contained in a liquid
04/1979
04/24/1979US4151254 Strong, hydrophilic disks of polyethylene
04/24/1979US4151215 Catalytic sorbents
04/24/1979US4151089 Chromotography
04/24/1979US4150899 Densitometer
04/24/1979US4150563 Method of and apparatus for the recirculation of fluids in a closed circuit
04/17/1979US4150436 First order sample and hold
04/17/1979US4149402 Analytical method for determining desorption isotherm and pore size distribution of an absorbent material
04/10/1979US4149255 Method and arrangement for the automatic observation of interfacial phenomena
04/10/1979CA1052127A1 Sampler-injector for liquid chromatography
04/03/1979US4147621 Applying cross-flow pressure gradient across semipermeable plates
04/03/1979CA1051637A1 Alumina-based bodies with large pores produced by agglomeration
03/1979
03/27/1979CA1051565A1 Quantitative analysis of single ion species
03/27/1979CA1051220A1 Temperature control system for chromatographic apparatus
03/20/1979US4145506 Polysiloxane, chromatograph
03/20/1979US4145139 Zig zag scanning densitometer with base line and impurity correction
03/13/1979US4144451 Mass spectrometer
03/06/1979US4142944 Mercury drop electrode
03/06/1979US4142858 Method to determine a diagnostic indicator of blood sugar condition, and, a liquid chromatographic microcolumn therefor
03/06/1979US4142857 Using carboxymethyl cellulose ion exchanger
03/06/1979US4142856 Method to determine a diagnostic indicator of blood sugar condition, and, a liquid chromatographic microcolumn therefor
03/06/1979US4142855 Method to determine a diagnostic indicator of blood sugar condition, and, a liquid chromatographic microcolumn therefor
03/06/1979CA1050195A1 Continuous manufacture of polyamides
02/1979
02/27/1979US4141833 Thin layer chromatography
02/27/1979US4141237 Pressure compensation method and apparatus for a chromatograph
02/20/1979US4140496 S-Triazine derivatives
02/13/1979US4139684 Method for preparation of hydrophilic polymeric ion exchanging gels
02/13/1979US4139469 For transporting fluids under pressure as in chromatography
02/13/1979US4139458 Preparative centrifugal chromatography device
02/13/1979CA1048692A1 Method for preparation of ion exchangers by alkylation and hydroxyalkylation of polymeric hydrophylic anion exchangers
02/06/1979US4138336 Thin layer chromatographic plates
02/06/1979CA1047792A1 Flasher accessory for gas concentrator-gas chromatograph analyzer
02/06/1979CA1047791A1 Method for the rapid analysis of a mixture of a number of substances by chromatography
01/1979
01/30/1979US4137453 Methods and apparatus for improving electron capture detectors by collection of ions
01/30/1979US4137161 Maintaining same pressure in sample cell and reference cell
01/30/1979US4137011 Flow control system for liquid chromatographs
01/30/1979CA1047276A1 Convergent light illuminated flow cell for liquid chromatography
01/23/1979US4136007 Sample applying position marking device for film for electrophoresis
01/23/1979US4135896 Gas purifier having rechargeable adsorber filter with removeable rechargeable sample canister
01/23/1979US4135881 Method and apparatus for determining the thermal cracking behavior of hydrocarbon feeds for cracking furnaces
01/23/1979US4135880 Folate assay with ion exchange resin bound-free separation
01/16/1979US4134730 Spotting systems and methods pertaining thereto
01/16/1979US4134289 Gas sampling system having a flow indicator
01/16/1979CA1046506A1 Gel product for separation purposes and method of using the product for hydrophobic salting out adsorption
01/16/1979CA1046451A1 Chromatography solid support
01/09/1979US4133767 Multisolvents, sparging inert gases
01/09/1979US4133753 Method of ion exchange chromatography
01/09/1979US4133651 Methods for removing radioactive isotopes from contaminated streams
01/09/1979US4133640 Chromatographic analysis apparatus
01/09/1979US4133562 Separation column
01/02/1979US4132511 Damper for high pressure pumping system
01/02/1979CA1045408A1 High pressure sample injector and injection method
12/1978
12/26/1978US4131547 Refillable column for chromatography at elevated pressure
12/26/1978US4131427 Chromatography detector
12/26/1978US4131393 Fluid pump mechanism
12/26/1978CA1045291A1 Method for preparation of amphoteric ion exchangers with the hydrophilic polymeric matrix
12/20/1978EP0000066A1 Determination of aromatic aminocarboxylic acids.
12/19/1978CA1044824A1 Determining total ionic content
12/19/1978CA1044485A1 High pressure sample injection apparatus and method for liquid chromatography
12/12/1978US4129560 Process for the purification of high molecular weight peptides using non-ionic detergents
12/12/1978CA1044040A1 Liquid phase chromatography analysis process