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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12/05/1978 | US4128476 Carrier composition control for liquid chromatographic systems |
12/05/1978 | US4128008 Concentration valve for a gas detecting apparatus, or the like |
11/28/1978 | US4127386 Process and system for measuring sulfur dioxide pollution |
11/21/1978 | US4126554 Selectively marked thin-layer chromatographic plate |
11/21/1978 | CA1042988A1 Dual ion chromatograph using parellel columns |
11/14/1978 | US4125464 Method and apparatus for multiple development of thin-layer chromatography plates |
11/14/1978 | CA1042596A1 Method for preparation of anion exchangers by substitution of hydraulic polymeric gels |
11/07/1978 | US4124699 Alumina-based bodies with large pores, produced by agglomeration |
11/07/1978 | US4124358 Sample-injection device for process gas chromatography with capillary columns |
10/31/1978 | US4123498 Process for separating fission product molybdenum from an irradiated target material |
10/31/1978 | US4123236 Gas chromatograph device |
10/24/1978 | US4121859 Pressure tight seal |
10/24/1978 | CA1040988A1 Apparatus and method to detect chloromethyl methyl ether |
10/17/1978 | US4120661 Sampling device |
10/17/1978 | US4120205 Device for the repeated reproducible delivery of definite variable amounts by volume |
10/10/1978 | US4119120 Fluid switch |
10/10/1978 | CA1040078A1 Method for constituent analysis with thin-layer reactant mixture |
10/03/1978 | US4118347 Filler for liquid chromatography |
10/03/1978 | US4117727 Bubble sensor and method |
09/26/1978 | US4116837 High pressure liquid chromatography apparatus |
09/26/1978 | US4116836 Monolithic glass |
09/26/1978 | US4116046 Liquid chromatography system |
09/19/1978 | US4114422 Method of monitoring diet |
09/12/1978 | US4112766 Fluid actuated valve |
09/12/1978 | US4112743 Step-wise gradient carrier for liquid chromatography |
09/12/1978 | US4112739 Process and apparatus for the isostatic measurement of the permeability of a material to the passage therethrough of a gas or vapor |
09/12/1978 | CA1038510A1 Automated quantitative analysis of ionic species |
09/12/1978 | CA1038196A1 Device for placing samples in a chromatograph_ |
09/12/1978 | CA1038195A1 Separation of isoenzymes by ion exchange chromatography |
09/05/1978 | US4112302 Gas monitor |
09/05/1978 | US4112297 Interface for use in a combined liquid chromatography - mass spectrometry system |
09/05/1978 | US4111859 Method of preparation of ion exchangers by alkylation and hydroxyalkylation of polymeric hydrophilic anion exchangers |
09/05/1978 | US4111838 Composition for chromatography |
09/05/1978 | US4111643 Vent control for a thermal system |
09/05/1978 | US4111554 Process for the specific quantitative detection of sulfur compounds and apparatus for carrying out this process |
08/29/1978 | US4109510 Fluid measuring apparatus |
08/29/1978 | CA1037287A1 Electromagnetic metering pump for chromatograph column |
08/22/1978 | US4109075 Separation of saccharides by exclusion chromatography |
08/22/1978 | US4108603 Method for rapid analysis of hemoglobin variants by high speed liquid chromatography |
08/15/1978 | US4107041 Electromatographic separating apparatus and system |
08/15/1978 | US4107014 Colored proteins |
08/15/1978 | US4106908 Method for the determination of the organic carbon content in mineral-containing materials |
08/15/1978 | CA1036538A1 Electric surface area meter |
08/08/1978 | US4105499 Heart attack screening method, apparatus and kit for same |
08/08/1978 | US4105426 Silica, refractory metal oxides |
08/01/1978 | US4104208 Process for preparation of hard and porous polyvinylalcohol gels |
07/25/1978 | US4102782 Method of sample introduction in the micro liquid chromatography and the apparatus therefor |
07/25/1978 | US4102648 Activated carbon adsorber, flame ionization detector |
07/25/1978 | US4102647 Removal of condensates from light gaseous streams |
07/25/1978 | US4102179 Liquid column chromatographic separation |
07/18/1978 | US4101461 Method for preparation of anion exchangers by substitution of hydrophilic polymeric gels |
07/18/1978 | US4101460 High performance ion exchange composition |
07/18/1978 | US4101278 Ionization detector utilizing tritiated scandium with an acceptable tritium emanation rate at high temperature |
07/18/1978 | US4100790 Electronic orsat for gas analysis |
07/11/1978 | US4100412 Selective multichannel optical time-shared detector for chromatography |
07/11/1978 | US4100149 Method of separating proteins by ion exchange |
07/04/1978 | US4098592 Temperature control system for chromatographic apparatus |
06/27/1978 | US4097420 Method for preparation of macroporous amphoteric ion exchangers with highly crosslinked hydrophilic polymeric matrix |
06/27/1978 | US4097239 Two-flame burner for flame photometric detection |
06/27/1978 | US4096908 Heating and cooling enclosure for a gas chromatographic column |
06/27/1978 | US4096746 Flow controller-flow sensor assembly for gas chromatographs and the like |
06/27/1978 | US4096734 Method of removing headspace volatiles and analysis thereof |
06/20/1978 | US4096136 Method of selectively removing lipoprotein from blood plasma or serum using sulfated carbohydrate ion-exchangers |
06/20/1978 | US4095950 Method for the chromatographic analysis of a technetium-containing mixture |
06/20/1978 | US4095455 Pneumatic detector for chromatographic analyzer |
06/13/1978 | US4094833 Vinylic group containing dextran derivative gel in particle form for separation purposes |
06/13/1978 | US4094196 Sample injection with automatic cleaning of sampling conduit |
06/13/1978 | US4094195 Novel seal and apparatus including same |
06/06/1978 | US4093550 Column for high pressure liquid chromatography |
05/16/1978 | US4089207 Accessory for gas concentrator-gas chromatograph analyzer |
05/09/1978 | US4088458 Heater block for low cost gas chromatograph |
05/09/1978 | US4088407 High pressure fluorescence flow-through cuvette |
04/25/1978 | US4086051 System for preparing packed columns and coated capillary tubes useful in gas chromatography |
04/18/1978 | US4084440 Chromatograph injection system |
04/11/1978 | US4084248 Method and apparatus for error correction |
04/11/1978 | US4084246 Pulse generator |
04/11/1978 | US4084091 Chromatographic method for determining additive concentration in gasoline |
04/11/1978 | US4083702 Chromatographic column fittings |
04/11/1978 | US4083690 Analysis of diacetyl- odor components, kjeldahl determinations |
04/11/1978 | US4083323 Pneumatic system for solder leveling apparatus |
04/11/1978 | US4083227 Hydrocarbon vapor analyzer |
03/21/1978 | US4080658 System for maintaining below range synchronization in error correcting apparatus |
03/21/1978 | US4080171 Rapid analysis of trace components contained in a liquid |
03/14/1978 | US4079009 Apparatus for multiple column chromatography |
03/07/1978 | US4077886 Centrifugal liquid chromatograph |
02/28/1978 | US4076663 Water absorbing starch resins |
02/14/1978 | US4073725 Method and apparatus for liquid chromatography under elevated pressure |
02/07/1978 | US4072846 Control system for a chromatography apparatus oven door |
01/31/1978 | US4070913 Sample dilution |
01/24/1978 | US4070286 Macroporous microspheroids and a process for their manufacture |
01/24/1978 | US4070285 Filling |
01/24/1978 | US4070284 Liquid chromatography and apparatus for the same |
01/24/1978 | US4070283 Controlled surface porosity particles and a method for their production |
01/24/1978 | US4070169 Chromatographic column oven |
01/24/1978 | US4070155 Apparatus for chromatographically analyzing a liquid sample |
01/17/1978 | US4068528 Two position rotary valve for injecting sample liquids into an analysis system |
01/10/1978 | US4068185 Current balancing circuit for use with chromatographic system detector |
01/10/1978 | US4068067 Process for the production of water-adsorbing cellulose ethers |
01/10/1978 | US4067227 Hydrogen transfer system for gas chromatograph |
01/10/1978 | US4067226 Chromatographic apparatus |