| 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) |
|---|
| 10/17/1990 | EP0392735A2 Polymeric supports |
| 10/17/1990 | EP0392404A2 Method for quantitatively measuring sugar-alcohol, column and kit for same |
| 10/17/1990 | CN2064062U High efficiency enriching apparatus |
| 10/17/1990 | CN2064061U Thickener for micro-organic matter |
| 10/17/1990 | CA2014619A1 Method and apparatus for analyzing gases dissolved in oil |
| 10/16/1990 | US4963264 Process for selective dialysis using polymeric affinity adsorbents and size selective membranes |
| 10/16/1990 | US4963263 Method of identity analyte-binding peptides |
| 10/16/1990 | US4963254 Packing material for chromatographic use |
| 10/16/1990 | US4962662 For controlling mass flow of a mobile phase |
| 10/16/1990 | CA1275301C Photodiode |
| 10/16/1990 | CA1275199C Constant suction pump for high performance liquid chromatography |
| 10/09/1990 | US4962042 Blowing solvent of sample through at high gas flow rate to reduce carryover |
| 10/09/1990 | US4961853 Crosslinked polymer formed and held on surface; heat resistance to withstand wet steam sterilization |
| 10/03/1990 | EP0389571A1 Differential refractometer. |
| 10/02/1990 | US4960992 Method and means for vaporizing liquids by means of heating a sample capillary tube for detection or analysis |
| 10/02/1990 | US4960991 Multimode ionization source |
| 10/02/1990 | US4960691 Chromatographic test strip for determining ligands or receptors |
| 10/02/1990 | US4960516 Liquid microcolumn chromatograph |
| 10/02/1990 | US4960444 Method for the determination of organic acids in an aqueous sample by; gas chromatography |
| 10/02/1990 | CA1274948A1 Bead-shaped crosslinked copolymers containing epoxide groups and basic amino groups, a process for their preparation and their use |
| 10/02/1990 | CA1274787A1 Chromatography column using horizontal flow |
| 10/02/1990 | CA1274704A1 Sorbent tube, thermal injection apparatus |
| 10/01/1990 | WO1990011832A1 Method and apparatus for capillary hydrodynamic fractionation |
| 10/01/1990 | CA2049283A1 Method and apparatus for capillary hydrodynamic fractionation |
| 09/27/1990 | DE3909599A1 Method of determining the molecular mass distribution of sparingly soluble high-temperature engineering plastics by means of size exclusion chromatography |
| 09/26/1990 | CN2062850U First-order thermal desorption apparatus used by adsorption and concentration |
| 09/26/1990 | CN1009765B Automatic feeding method |
| 09/25/1990 | US4959176 High resolution non corrosive amino acid analysis buffer solutions |
| 09/25/1990 | US4959153 Chromatography; complexing transition metal ions, decomplexing using a stripping liquid and recovering |
| 09/25/1990 | US4958529 Interface for coupling liquid chromatography to solid or gas phase detectors |
| 09/20/1990 | WO1990010873A1 Buffer and reagent system for separating amino acids |
| 09/20/1990 | DE4008523A1 Appts. for analysis by liq. chromatography - comprises eluent tank, feed-pump, sepg. column, flow cell, electrical conductivity measuring appts., AD converter and microcomputer |
| 09/20/1990 | DE3908725A1 Automatically operating device for the simultaneous and standardised implementation of a number of chemical, physical-chemical or biological operational processes |
| 09/19/1990 | EP0387409A2 Pre-injection chromatographic sample sequencer |
| 09/19/1990 | EP0387408A1 Trapping assembly |
| 09/19/1990 | EP0387276A1 Method to produce immunodiagnostic reagents. |
| 09/18/1990 | US4957620 Liquid chromatography using microporous hollow fibers |
| 09/18/1990 | US4957009 Pushloop liquid sampling method |
| 09/18/1990 | CA1274190A1 Chromatography columns with cast porous plugs and methods of fabricating same |
| 09/12/1990 | EP0387041A1 Nitrogen specific detector |
| 09/12/1990 | EP0386926A2 Silica gel supports suitable for chromatographic separations |
| 09/12/1990 | EP0386229A1 Support-bound oligonucleotides. |
| 09/12/1990 | EP0386033A1 Device and procedure for metering samples in gas chromatography. |
| 09/11/1990 | US4956559 Method of detecting radioactive substance |
| 09/11/1990 | US4956298 Centrifuges, columns for insertion of the centrifuges, vessels, syringes |
| 09/11/1990 | US4956073 Method to make microcavities and its application to an electrochemical sensor |
| 09/09/1990 | WO1990010641A1 Purified insulin mediators and purification process for same |
| 09/07/1990 | WO1990010217A1 Method for measuring low levels of ammonia in process gas streams |
| 09/07/1990 | WO1990009832A1 High performance affinity chromatography column comprising non-porous, monodisperse polymeric packing material |
| 09/05/1990 | EP0385797A2 A method and apparatus for detecting transition and rare earth elements in a matrix |
| 09/05/1990 | EP0385587A1 Ion-exchange composition employing resin attachment to dispersant and method for forming the same |
| 09/05/1990 | EP0385481A2 Baseline stabilization in gradient ion chromatography by using a nonionic modifier |
| 09/05/1990 | EP0385379A1 Extractive procedure of thiamine monophosphate from a solution of thiamine phosphates |
| 09/05/1990 | EP0385230A2 Device and process to render stains of substances on layer chromatograms visible |
| 09/05/1990 | EP0385026A2 Diluting apparatus and method |
| 09/05/1990 | EP0384969A2 Axially-driven valve controlled trapping assembly |
| 09/04/1990 | US4954253 Device for preparing a gradient solution for a high-pressure liquid chromatograph |
| 09/04/1990 | US4954150 Device for branching gas flows |
| 09/04/1990 | US4954149 Injection septum |
| 09/02/1990 | CA2011295A1 System for detecting transition and rare earth elements in a matrix |
| 09/02/1990 | CA2011270A1 Baseline stability in gradient ion chromatography by using a nonionic modifier |
| 08/29/1990 | EP0384596A2 Thin silica flakes and method of making |
| 08/29/1990 | EP0383829A1 Infrared emission detection |
| 08/28/1990 | US4952519 Protein immobilization with poly(ethyleneimine) derivatized with a hydroprobic group |
| 08/28/1990 | US4952514 Analysis of gold, platinum or palladium |
| 08/28/1990 | US4952349 Macroporous polymeric membranes for the separation of polymers and a method of their application |
| 08/28/1990 | US4952321 Process of removing and concentrating desired ions from solutions |
| 08/28/1990 | US4952126 Apparatus for determination of microconstituents |
| 08/28/1990 | US4952055 Differential refractometer |
| 08/28/1990 | US4951513 Automatic preparation apparatus and filter therefor |
| 08/28/1990 | US4951503 Method and apparatus for determining the heating value of a gaseous fuel |
| 08/23/1990 | WO1990009585A1 Process and device for controlling the carrier gas pressure in a valveless separating column circuit in gas chromatography |
| 08/23/1990 | CA2008449A1 Thin silica flakes and method of making |
| 08/22/1990 | EP0382752A1 Improved differential pressure capillary viscometer. |
| 08/22/1990 | CN2060886U Synchronous reverse flow chromatograph with multi spiral tube |
| 08/21/1990 | US4950397 Apparatus for analyzing diluted and undiluted fluid samples |
| 08/21/1990 | CA1272891A1 Chromatographic analyzer |
| 08/16/1990 | EP0382215A1 Porous adsorbent for beta-2-Microglobulin |
| 08/16/1990 | EP0270595B1 An optically active reagent and a method for the determination of enantiomeric amine compounds |
| 08/14/1990 | US4948816 Spherical grains of polyamino acid and production method thereof |
| 08/14/1990 | US4948814 Ion exchanger based on cross-linked glucomannan |
| 08/14/1990 | US4948389 Gas chromatograph having cyro blast coolings |
| 08/08/1990 | EP0381173A2 Method and device for quantitative chromatography |
| 08/08/1990 | EP0380864A2 Viscosity detection method for liquid chromatography systems with carrier liquids having time-varying viscosity |
| 08/08/1990 | EP0380581A1 Fluid flow detector |
| 08/08/1990 | CN1044536A Chromatographic attachment for supercritical fluid |
| 08/08/1990 | CN1009058B Optically active adsorbents |
| 08/02/1990 | CA2009111A1 Method and device for quantitative chromatography |
| 08/01/1990 | EP0379963A1 Extraction and seperation method and apparatus using supercritical fluid |
| 08/01/1990 | EP0379917A2 Optically active (meth)acrylic-acid derivatives, their preparation, their polymerisation into optically active polymers and their use |
| 08/01/1990 | CN1044339A Liquid chromatography system and method of utilizing same |
| 07/31/1990 | US4945205 Chromatographic strip having non-compressed edges |
| 07/31/1990 | US4944921 Automated PCB analyzer system |
| 07/31/1990 | US4944781 Gas chromatograph/autosampler coupling assembly |
| 07/30/1990 | CA2000637A1 Viscosity detection method for liquid chromatography systems with carrier liquids having time-varying viscosity |
| 07/26/1990 | WO1990008398A1 A method of preparing samples for mass analysis by desorption from a frozen solution |
| 07/26/1990 | WO1990007965A1 Chromatography on a continuous polymer |
| 07/25/1990 | EP0167488B1 Ionically modified polysaccharides, process for their preparation and their use |
| 07/25/1990 | CN1008910B Dry material for aquated contains dispersed polymeres particle aquogel and its process of preparation and application in biology |
| 07/18/1990 | CN1043883A Method of separating substance from liquid by means of particulate material |