| 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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| 01/05/1988 | US4717671 Stabilized water indicating paste composition |
| 01/05/1988 | US4717378 Methods for detecting dehydration of a biomedical hydrogel |
| 12/23/1987 | EP0249851A2 Immunoassay method using a multizone test device |
| 12/23/1987 | EP0249732A1 Colorimetric detection device |
| 12/23/1987 | CN87102722A Test paper for determining available chlorine and its prepn. |
| 12/22/1987 | US4714874 Test strip identification and instrument calibration |
| 12/17/1987 | WO1987007721A1 System for the analysis of sulphur in liquid hydrocarbons |
| 12/16/1987 | EP0249514A1 Method for characterising a catalyst by determining its ability for conversion and coking |
| 12/16/1987 | EP0249500A2 Microwave-based apparatus and kjeldahl method |
| 12/10/1987 | DE3618842A1 Detection of lead in petrol |
| 12/09/1987 | EP0248694A1 Method for determining the composition of a mixture of hydrocarbons in dependence upon the boiling point of its constituents |
| 12/09/1987 | EP0248112A2 Use of thiophenes as pH indicators, in particular in a non-enzymatic glucose test |
| 12/02/1987 | EP0247993A1 Method of preparing carrier materials for optical sensors |
| 12/02/1987 | EP0247848A2 Water-compatible reducible compounds and their use in analytical compositions and methods |
| 12/02/1987 | EP0247457A2 Process for the preparation of reagent layers containing hydrophobic reagents |
| 12/02/1987 | EP0247439A2 System for the determination of the concentration of bodily fluid ingredients |
| 12/01/1987 | US4710848 Determination of partial pressure of gas mixture |
| 12/01/1987 | CA1229788A1 Visual reading of colour tests |
| 11/25/1987 | EP0246505A2 Process for the production of test strips by casting method |
| 11/19/1987 | WO1987006929A1 An optically active reagent and a method for the determination of enantiomeric amine compounds |
| 11/19/1987 | EP0245767A2 Test strips |
| 11/19/1987 | DE3715245A1 Process for the production of an analytical element of the dry type |
| 11/10/1987 | US4705757 Method for fluorometric analysis of catechol amines |
| 11/10/1987 | US4705409 Method and apparatus for measurement of carbon content in fly ash |
| 11/05/1987 | WO1987006696A1 Method and apparatus for measuring cyanide |
| 11/04/1987 | EP0244197A1 Analytical element and method for determination of magnesium ions |
| 11/04/1987 | EP0244196A1 Hydroxy-substituted cyanoformazans and their use in analytical compositions and methods |
| 11/04/1987 | EP0244094A2 Devices for recording test results and test kits comprising them |
| 11/04/1987 | EP0243742A2 Indicator for the detection of chloride |
| 11/04/1987 | EP0243530A2 Process for determining house dust mites which are still alive |
| 11/04/1987 | EP0243485A1 Hybridoma tumor cell lines and their monoclonal antibodies to thaumatin. |
| 11/03/1987 | US4704440 Polymer compositions detectable in water |
| 11/03/1987 | CA1228853A1 N-(2-naphthylsulfonyl)-amino acid derivatives, method for preparation thereof and their use for determination of optical purity of optically active compounds |
| 10/27/1987 | US4703015 Chromazurol s, surfactant, alkali or alkaline earth metal salt |
| 10/27/1987 | US4703014 Guanidine salts as pyridine substitute |
| 10/22/1987 | WO1987006343A1 Multiple control standard for blood analysis |
| 10/21/1987 | EP0241666A2 Gas meter and warning device |
| 10/20/1987 | US4701420 Analytical compositions, elements and methods utilizing reduction of ferric ion chelates to form detectable dyes |
| 10/20/1987 | CA1228246A1 Apparatus for the evaluation of a test carrier for the analytical determination of components of a body fluid |
| 10/14/1987 | EP0240849A2 Controlled hue test device |
| 10/13/1987 | US4699885 Paste including indicator dye |
| 10/07/1987 | EP0239926A2 Rainbow test device |
| 10/06/1987 | US4698314 Photochemical reaction; measuring light scattered by oxide particles produced by irradiation, oxidation of waste gases |
| 09/30/1987 | EP0239242A2 Analytical composition, element and method for the determination of hydrogen peroxide |
| 09/30/1987 | EP0238862A1 Model for the simulation of oxygen consumption and carbon dioxide production |
| 09/29/1987 | US4696906 Test medium solution for detecting phosphorus segregates in metallic material |
| 09/29/1987 | US4696795 Silver nitrate reduction on paper |
| 09/23/1987 | EP0238012A2 Element for Immunoassay and process of using the same |
| 09/22/1987 | CA1227250A1 Microwave ashing apparatus and process |
| 09/22/1987 | CA1227112A1 Methods and reactive compositions suitable for the colorimetric determination of metals |
| 09/16/1987 | EP0236792A2 Titration method for the chemical analysis of a sample and apparatus for carrying out the titration method |
| 09/16/1987 | EP0236768A1 Multi-layered element for quantitative analysis of immuno-reactant |
| 09/15/1987 | CA1226796A1 Reflective particle-containing analytical element |
| 09/15/1987 | CA1226792A1 Ion test means having a hydrophilic carrier matrix |
| 09/10/1987 | DE3707110A1 Analytical element for determining the activity of lactate dehydrogenase |
| 09/10/1987 | DE3605275A1 Spray process for the chemical determination of free halogen and pseudohalogen ions, in particular chlorine ions, on surfaces or fracture surfaces of materials |
| 09/08/1987 | US4692309 Indicating hazardous substances in air |
| 09/08/1987 | US4692307 Adjustable test pack |
| 09/08/1987 | US4691562 Process for determining aging condition of exhaust-gas catalyst |
| 09/08/1987 | CA1226509A1 Analytical element and its use in a whole blood hemoglobin assay |
| 09/01/1987 | US4690902 Solution of concentrated sulfuric acid and dihydroxybenzoic acid compound or derivative |
| 09/01/1987 | US4690005 Diluting dosage device |
| 08/27/1987 | WO1987004931A1 An indicator sheet for an autoclave test pack |
| 08/25/1987 | US4688935 Plasma spectroscopic analysis of organometallic compounds |
| 08/25/1987 | CA1225912A1 Colorimetric ethanol analysis method and test device |
| 08/18/1987 | CA1225574A1 Reflective particle-containing solvent extraction reagent composition |
| 08/18/1987 | CA1225573A1 Ethylene oxide sterilization and aeration indicator |
| 08/13/1987 | WO1987004716A1 Use of lanthanide chelate fluorophores based on dihydropyridine condensation products |
| 08/12/1987 | EP0232130A2 Biological and analytical uses of phenalenone and benzphenalenone compounds |
| 08/12/1987 | EP0231499A1 Activatable time-temperature indicator |
| 08/12/1987 | EP0231172A1 A transdermal dosimeter |
| 08/11/1987 | US4686453 Heat decomposition ot carbon deposit; measure electric resistance |
| 08/11/1987 | CA1225314A1 Sealed reagent matrix |
| 08/04/1987 | CA1224939A1 Constant temperature heating value measurement apparatus |
| 07/29/1987 | EP0230229A2 Stable composition for the determination of peroxidatively active substances |
| 07/29/1987 | EP0229982A2 Test device and method of determining concentration of a sample component |
| 07/28/1987 | US4683211 Calcium carbonate reacted with acid to produce carbon dioxide |
| 07/28/1987 | US4683210 Method for measuring concentrations of CaCO3 and CaSO3 in a slurry |
| 07/22/1987 | EP0229710A2 Improvements in or relating to the chemical analysis of tobacco or smoking-related products |
| 07/22/1987 | EP0229709A2 Improvements in or relating to the chemical analysis of tabacco or smoking related products |
| 07/22/1987 | CN86103336A Automatical potentiometric titrimeter |
| 07/21/1987 | US4681857 Test paper containing copper and nitrate ions |
| 07/21/1987 | US4681740 Apparatus for the chemical reaction by wet process of various products |
| 07/15/1987 | EP0228666A2 Peptide substrates and method for the quantitative assay of endotoxin |
| 07/14/1987 | US4680167 Controlled atmosphere oven |
| 07/14/1987 | CA1224061A1 Device for the evaluation of a flat test carrier |
| 07/08/1987 | EP0228285A1 Test elements |
| 07/07/1987 | US4678756 Chemiluminescent sulfur detection apparatus and method |
| 07/07/1987 | US4678640 Indicator for detecting residual ethylene oxide |
| 07/07/1987 | CA1223803A1 Disposable sterilizer mechanical air removal test pack |
| 07/02/1987 | DE3544977A1 Method for the combustion of organic substances |
| 07/01/1987 | EP0226767A2 Transparent test-strip system |
| 06/30/1987 | US4677374 Oil mist dectector |
| 06/30/1987 | US4677079 Process for determining the composition of binary liquid mixture |
| 06/30/1987 | US4677077 Method for measuring the concentration of CaCO3 in a slurry |
| 06/30/1987 | US4677076 Calculated from molar excitation energy obtained from wavelen ght of sample-dye mixture |
| 06/30/1987 | CA1223511A1 Multizone analytical element and method for analyte determination |
| 06/30/1987 | CA1223510A1 Analytical element having improved spreading zone and method of use |
| 06/23/1987 | US4675161 Azo dyes, epoxy compounds, polymeric membranes; color change; sterilization testing |
| 06/23/1987 | CA1223183A1 Wipe-off test device |