| 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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| 04/19/1989 | EP0312293A2 Sensing device for analysis |
| 04/18/1989 | US4822743 Method and cloth for detecting leaks in closed bodies |
| 04/18/1989 | CA1252705A1 Method for analyzing different sulphur forms |
| 04/13/1989 | DE3732504A1 Method and apparatus for the determination of formaldehyde concentrations in the air |
| 04/11/1989 | US4820755 Radiation sterilizable composition and articles made therefrom |
| 04/11/1989 | US4820647 Binding with hydrophobic ionophore, measuring change in light absorbance |
| 04/11/1989 | US4820632 Agent and process for the detection of redox systems |
| 04/11/1989 | US4820489 Reagent containing polymeric film embedded on fleece carrier coating of test strips |
| 04/06/1989 | WO1989003036A1 Titrating apparatus and method |
| 04/05/1989 | EP0310149A1 Spectroscopic analysis of organometallic compound |
| 04/05/1989 | EP0310053A2 Method for determining hydrogen concentrations |
| 04/05/1989 | EP0309883A2 Test strip for the determination of an analyte in a body fluid |
| 04/05/1989 | EP0309525A1 Determination of ions in fluids |
| 04/04/1989 | USH623 Integral multilayer analysis element |
| 03/29/1989 | EP0309173A2 Time-color indicators |
| 03/29/1989 | EP0309007A1 Method for separating an aqueous liquid and active carbon including adsorbed material |
| 03/29/1989 | EP0308670A1 Simultaneous assay for calcium and phosphorus |
| 03/28/1989 | US4816414 Methods and apparatus for detecting an analyte of interest capable of being converted into a carbonyl-containing composition |
| 03/28/1989 | US4816412 Converting to and measuring carbob dioxide |
| 03/22/1989 | EP0086821B1 A method for increasing the sensitivity of assays |
| 03/21/1989 | CA1251383A1 Analytical compositions, elements and methods utilizing reduction of ferric ion chelates to form detectable dyes |
| 03/15/1989 | EP0307008A2 Reactor for application to a gas chromatographic system |
| 03/15/1989 | EP0306977A2 Method for quantification of a specific component deposited on a chemical analysis tape |
| 03/15/1989 | EP0306803A2 Test composition device and method for the visual determination of hydrogen peroxide |
| 03/15/1989 | CN1031763A Test paper for determining peroxy-acetic acid and its prepn. method |
| 03/08/1989 | EP0306335A1 Analysis of ions present at low concentrations in solutions containing other ions |
| 03/08/1989 | EP0306240A2 Apparatus for measuring ignition loss |
| 03/07/1989 | US4810654 Method for the concentration determination of silane gas in a gaseous mixture |
| 03/07/1989 | US4810470 Volume independent diagnostic device |
| 03/01/1989 | EP0304794A2 Quantitative measurement of lithium |
| 02/28/1989 | US4808539 Compounds, reagents and procedures for determining cations |
| 02/22/1989 | EP0304163A2 Analytical element having stabilized peroxidase |
| 02/22/1989 | EP0304052A2 Integral multilayer element for analysis of albumin |
| 02/22/1989 | EP0303895A1 Radiation sterilizable composition and articles made therefrom |
| 02/22/1989 | EP0303784A1 Volume independent diagnostic device |
| 02/21/1989 | US4806604 Photosensitive calcium chelators |
| 02/21/1989 | US4806491 Multiple electrooptic indicator sensors in elongation strip |
| 02/21/1989 | US4806490 Procedure for the detection of allergen-containing house dust |
| 02/21/1989 | US4806470 Less interference from endogenous phosphatase and hemoglobins |
| 02/21/1989 | US4806312 Multilayer immunoassay test using detectable chemical properties |
| 02/21/1989 | US4806311 Multilayer immunoassay test using detectable physical properties |
| 02/14/1989 | US4804631 Method and apparatus for measuring cyanide |
| 02/14/1989 | US4804630 Leuco precursor of arylmethane dye dispersed in matrix-colorimetric analysis |
| 02/09/1989 | WO1989001151A1 Testing piece and testing device for measuring chloride |
| 02/09/1989 | WO1989001150A1 Method for determining chloride |
| 02/09/1989 | WO1989000997A1 Ionophores as reagents for detecting ions |
| 02/08/1989 | EP0302287A2 Test element for determining an analyte in blood and method for its preparation |
| 02/07/1989 | USH572 Optical analyzer |
| 02/07/1989 | US4803161 Biological and analytical uses of phenalenone and benzphenalenone compounds |
| 02/07/1989 | US4803159 Analytical element and method for determination of total lacate dehydrogenase |
| 02/07/1989 | US4803051 Atomic spectrometer apparatus |
| 02/07/1989 | US4802957 Pyridine derivative, imidazole or derivative as amine |
| 02/01/1989 | EP0301524A2 Test piece coloration comparative decision unit |
| 02/01/1989 | EP0301203A2 Pocket tester for paper and fabrics |
| 02/01/1989 | EP0179758B1 Reagent for the determination of inorganic phosphate and use thereof in a rate analysis method |
| 01/25/1989 | EP0300990A2 Protective coating for the part of an optical ion sensor in contact with the sample |
| 01/25/1989 | CN2031530U Automatic photo controlled titration apparatus |
| 01/24/1989 | US4800169 Test aids and method for the preparation thereof |
| 01/24/1989 | US4800067 Tube with indicator |
| 01/24/1989 | US4800066 Encapsulated water-soluble dye |
| 01/24/1989 | CA1249334A1 Selective chemical detection by energy modulation of sensors |
| 01/18/1989 | EP0299359A2 Reagent delivery system for use in solid-phase analytical devices |
| 01/18/1989 | EP0299310A1 Solvent for Karl Fischer water determination |
| 01/18/1989 | EP0299109A1 Wetness indicating hot-melt adhesives |
| 01/17/1989 | US4798805 Apparatus and process for pyrolysis and analysis of samples containing organic matter |
| 01/17/1989 | US4798803 Method for titration flow injection analysis |
| 01/17/1989 | US4798788 Diazotization of fluorophor |
| 01/11/1989 | EP0298473A2 Analytical element for analysis of whole blood |
| 01/10/1989 | US4797259 Wells with composite membranes, hermetic sealing |
| 01/10/1989 | US4796744 Apparatus for separating test strips |
| 01/04/1989 | EP0297390A2 Process for the manufacture of a diagnostic-test support, and test support therefor |
| 01/04/1989 | EP0297389A2 Diagnostic-test support and process for its manufacture |
| 01/04/1989 | EP0297098A1 An indicator sheet for an autoclave test pack. |
| 01/04/1989 | CN1030094A Determination of ions in fluids |
| 01/03/1989 | US4795714 Compositions for controllably releasing alcohols or amines |
| 01/03/1989 | US4795614 Gaseous combustion products |
| 01/03/1989 | US4795611 Indicator for the determination of chlorine gas |
| 01/03/1989 | CA1248284A1 Polymer compositions detectable in water |
| 12/29/1988 | WO1988010422A1 Analysis of carbohydrates |
| 12/28/1988 | EP0296846A1 A device for testing fluids |
| 12/28/1988 | EP0296795A2 Analytical method and element for ferrous ion assay |
| 12/27/1988 | US4793977 Colorimetric detector for monitoring oil degradation |
| 12/27/1988 | US4793180 Delayed action irreversible humidity indicator |
| 12/22/1988 | DE3718549A1 Arrangement and method for detecting carbon monoxide |
| 12/21/1988 | EP0295526A1 Process and device for separating and testing whole blood |
| 12/20/1988 | CA1247087A1 Chromophoric peptides, a process for their preparation, agents containing them and their use for determining dd-carboxypeptidases |
| 12/15/1988 | EP0243485A4 Hybridoma tumor cell lines and their monoclonal antibodies to thaumatin. |
| 12/14/1988 | EP0294715A2 Process for testing the efficacy of a catalyst |
| 12/13/1988 | US4791065 Silica gel particles wet with acidic chromium salt solution and dehydrated; visible color change on exposure to alcohol; breath analysis |
| 12/13/1988 | US4790857 Gaseous contaminant dosimeter with diffusive material for regulating mass uptake |
| 12/07/1988 | EP0294340A2 Method and apparatus for detection of gases as impurities in an inert gas |
| 12/06/1988 | US4789638 Process and apparatus for the detection of hydrazine and hydrazine derivatives |
| 12/06/1988 | US4789637 Acid complexed acetylenic compounds useful as environmental indicating materials |
| 12/06/1988 | US4789525 Analytical method and multilayer element for total ionic iron determination |
| 11/30/1988 | EP0293230A2 Acidic gas sensors |
| 11/30/1988 | CN88202388U Automatic titrimeter for arc burning c and s |
| 11/29/1988 | US4788151 Metal complexed acetylenic compounds useful as environmental indicating materials |
| 11/29/1988 | US4788039 Process and test kit for the detection of explosives |
| 11/23/1988 | EP0292161A2 New photosensitive calcium chelators |
| 11/23/1988 | CN87103531A Rapid check procedure for fresh milk with impurity |