| Patents for G01N 31 - Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods (18,554) |
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| 04/12/1994 | US5302346 Test carrier for the determination of ions |
| 04/12/1994 | US5301440 On-line type moisture measuring system for powdered or granular materials |
| 04/12/1994 | CA1328489C Heat resistant and light weight container for materials to be ashed, and process for manufacture thereof |
| 04/05/1994 | US5300564 Forming a glassy polymer in the presence of a reagent to trap the reagent; having a gas or liquid component in solution to diffuse through the pores; immobilized enzymes; detectors; pollution control; immunoassay |
| 04/05/1994 | US5300442 Scavenging iodine by reacting zinc to form zinc oxide which does not interfere with reduction of chlorine |
| 04/05/1994 | US5300441 Converting nitrogen monoxide to nitrogen dioxide; decaying to emit quanta of light |
| 04/05/1994 | US5300439 Method, device, and composition for the assay of ions |
| 04/05/1994 | US5300207 High current coulometric KF titrator |
| 03/31/1994 | WO1994007134A1 Apparatus and method for measuring nitrogen content in aqueous systems |
| 03/30/1994 | EP0589546A2 Apparatus for measuring the total organic carbon and nitrogen content of water |
| 03/29/1994 | US5298197 Oil phase consisting fluorescer compound and oxalates, aqueous phase containing oxidizer, and surfactant |
| 03/29/1994 | US5298140 Reaction apparatus for biochemical examination |
| 03/29/1994 | US5297599 Closure device for sealing reagent containers in an automatic pipetting system |
| 03/24/1994 | DE4231902A1 Standardising pyrograms to allow interlaboratory comparison - by determining relative retention temp for n-alkane homologues then applying calibration plot to pyrolysis gases from unknown samples |
| 03/24/1994 | DE4231727A1 Solid analytical sample combustion in vertical furnace - by preheating for water and volatiles evapn and then completely combusting |
| 03/23/1994 | EP0588024A1 Method for rapid characterization of alkylpolyglucosides |
| 03/23/1994 | CN1084276A Method & kit for detecting explosives |
| 03/22/1994 | US5296380 Method and kit for detecting explosives |
| 03/22/1994 | US5296377 Control reagent containing a hydroxylamine or an antioxidant |
| 03/22/1994 | US5296193 Combined titration apparatus |
| 03/18/1994 | CA2106247A1 Method for quick characterisation of alkyl polyglycosides |
| 03/17/1994 | WO1994006012A1 Analytical test apparatus with on board negative and positive control |
| 03/17/1994 | DE4237020A1 Remote monitoring of condition of archive celluloid cinematographic film - has acid-sensitive indicator located in opening in wall of can, behind lens and coupled in fluid contact with inside of can by passage, for photodiode scanning to obtain colour-dependent intensity signal |
| 03/16/1994 | EP0586969A2 Process and apparatus for determining total nitrogen content by elemental analysis |
| 03/16/1994 | EP0586789A2 Asymmetric porous membranes |
| 03/15/1994 | US5294554 Adding an oxidizing agent to decompose the copper/thiourea complex and oxidize the copper |
| 03/15/1994 | US5293648 Textiles; having a small tag containing a dye degradable at the same rate as the protective coating on the fabric |
| 03/09/1994 | EP0586200A1 Detection of glutaraldehyde |
| 03/09/1994 | EP0586125A2 Method and kit for detecting explosives |
| 03/09/1994 | CN1083590A Water quality assessment method and its equipments |
| 03/08/1994 | US5293186 Contact lens |
| 03/08/1994 | US5292801 Doped sol-gel glasses for obtaining chemical interactions |
| 03/08/1994 | US5292413 Solution of salts of organic nitrogen base and acid |
| 03/08/1994 | US5291879 Carbon dioxide detection (II) |
| 03/08/1994 | CA2004250C Optical waveguide sensor |
| 03/08/1994 | CA1327509C Titrating apparatus |
| 03/04/1994 | CA2105447A1 Method and kit for detecting explosives |
| 03/03/1994 | WO1994004917A1 Assay for isothiazolones |
| 03/03/1994 | WO1994004916A1 Apparatus for the detection of volatile amines |
| 03/03/1994 | WO1994004741A1 Washing process |
| 03/03/1994 | WO1994004703A1 Chemical and microbial test device |
| 03/03/1994 | WO1994004539A1 Chromogenic reagents |
| 03/03/1994 | DE4228021A1 Waschverfahren Washing Method |
| 03/03/1994 | CA2142117A1 Chromogenic reagents |
| 03/02/1994 | EP0585212A2 Sensor membrane of an optical sensor |
| 03/02/1994 | EP0584721A1 Analytical element for analysing a liquid specimen |
| 03/02/1994 | EP0584568A1 System of detecting and measuring sulfides in a sample |
| 03/02/1994 | EP0584377A1 Method and apparatus for analyzing organic matters using transportable construction |
| 03/02/1994 | EP0493417B1 Process for determining very small quantities of herbicides based on triazine compounds |
| 03/01/1994 | US5291418 Adjustment of electric potential by automatic titration |
| 03/01/1994 | US5290704 Method of detecting organic solvent vapors |
| 03/01/1994 | US5290702 Contacting surface with chromogenic solvent detector,dissolv-ing binder, detecting discoloration |
| 03/01/1994 | US5290516 Moisture indicator |
| 03/01/1994 | US5290515 Test strips for urine and blood analysis |
| 03/01/1994 | CA2104740A1 Residual glutaraldehyde detector |
| 02/25/1994 | CA2076709A1 Amplified fluorescence emission for chemical transduction |
| 02/23/1994 | CN2157520Y Microcoulomb titration cell |
| 02/22/1994 | US5288643 Quick method to distinguish alkylbenzene and naphthenic lubricants in compressors |
| 02/17/1994 | DE4226963A1 Monitor for pH value of a liquid - has a flow channel in front of the column to use the carbon di:oxide content as a measure of the pH value |
| 02/16/1994 | EP0582836A1 Fluorescent pH indicators |
| 02/15/1994 | US5286624 Indicator layer contains polyvinyl alkyl ether as binder polymer |
| 02/15/1994 | US5286358 Complexing ferric mions with fluoride ions, back titration |
| 02/09/1994 | EP0581766A1 Moisture indicating molding resins |
| 02/09/1994 | EP0348493B1 Systems for determining cyanuric acid in water |
| 02/08/1994 | US5285071 Fluid cell substance analysis and calibration methods |
| 02/08/1994 | US5284775 Blends of sensing component, polymer precursor amd hydroxy-alkylcellulose dispersants; detecting carbon dioxIde in blood |
| 02/08/1994 | US5284622 Held in a frame; test application surface |
| 02/08/1994 | CA1326775C Multidimensional chromatographic system |
| 02/03/1994 | WO1994002847A1 In vitro test for dermal corrosive properties |
| 02/03/1994 | WO1994002772A1 Leak detection for liquid hoses |
| 02/03/1994 | CA2140879A1 In vitro test for dermal corrosive properties |
| 02/02/1994 | EP0580863A1 Composition for measuring ionic strength or specific gravity of liquid specimen and test piece prepared from said composition |
| 02/02/1994 | EP0580580A1 Patterned indicators. |
| 02/01/1994 | US5282379 Volatile tracers for diagnostic use in steam generating systems |
| 01/26/1994 | EP0580489A1 Method for titrating iodine at low concentration in a nitrate solution, in particular a uranyl nitrate solution |
| 01/26/1994 | CN2154485Y Liquid titration apparatus |
| 01/19/1994 | EP0579331A1 Dry analytical element and method for the colorimetric determination of lithium ion |
| 01/19/1994 | EP0579202A1 Sulfhydryl-complexing agents in clinical test elements |
| 01/18/1994 | USRE34515 Steam sterilization indicator |
| 01/18/1994 | US5280548 Emission based fiber optic sensors for pH and carbon dioxide analysis |
| 01/18/1994 | US5279970 Oxidation, heating, measuring carbon dioxide |
| 01/18/1994 | US5279790 Merocyanine and nitro or nitroso substituted polyhalogenated phenolsulfonephthaleins as protein indicators in biological samples |
| 01/12/1994 | EP0578630A1 Sensor membrane of an optical sensor for the determination of a physical or chemical parameter of a sample |
| 01/12/1994 | EP0577799A1 Indicator for determining and indicating the fat and moisture content of human skin |
| 01/11/1994 | US5278132 Agricultural compounds |
| 01/11/1994 | US5277872 Isocyanatosilane primer covalently bonded to outer surface |
| 01/11/1994 | US5277056 Process and apparatus for continuously monitoring waste gas from an incinerator plant |
| 01/06/1994 | WO1994000756A1 A device for indicating the presence of carbon dioxide in a patient's exhaled air |
| 01/05/1994 | EP0577263A1 An impregnated support, apparatus and method for determining the concentration of readily oxidizable organic vapors in gas samples |
| 01/05/1994 | DE4220932A1 Chemical pH sensor with which colour change is automatically evaluated - in which film of polymer soln. contg. photo-indicator and photosensitive material is formed and dried, and photosensitive material is activated to form light-conducting strips |
| 01/05/1994 | CN1080398A Softened water hardness indicating plate |
| 01/05/1994 | CN1080397A Hydration method for measuring oxygen in a minute amount |
| 01/04/1994 | US5275955 Adhesion, textiles |
| 01/04/1994 | US5274931 On-line moisture control method for powdered or granular materials and a system to execute the method |
| 01/04/1994 | CA1325762C Test carrier for the determination of an analyte from whole blood and a process for the production thereof |
| 12/29/1993 | EP0575515A1 Improved method and reagent for determination of an analyte |
| 12/28/1993 | US5273716 Immobilizing a acryol-hydroxypyrenetrisulfonic dye/acrylamide copolymer near the end of an optical fiber to detect fluorescence |
| 12/23/1993 | WO1993025900A1 Indicator test-strip for phosphate analyses |
| 12/23/1993 | DE4220392A1 Training kits for simulation and detection of chemical contamination - includes non-toxic substances and actual decontaminating agents |
| 12/22/1993 | EP0425487B1 Method and apparatus for determining the ability of heavy fuels to self-ignite under diesel conditions |