Patents
Sitemap › G01 - Measuring; Testing › G01N - Investigating or analysing materials by determining their chemical or physical properties › 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
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)
11/1990
11/20/1990US4971918 Kit with a detectable color signal for detection of blood, ur ine etc for drugs, glucose
11/20/1990US4971911 Injection of alcohol into damping fluids, collection of vapors
11/20/1990US4971762 Detector device for determining the components of a fluid sample and a method of producing the same
11/20/1990CA1276532C Method for the continuous measurement of the partial pressure of gases and vapors
11/18/1990CA2017084A1 Filter applicator
11/13/1990US4970315 Thermochromic indicators for structural elements
11/13/1990US4970170 Liquid chromatographic determination of water
11/08/1990DE3914801A1 Testing tube for detecting air pollutants, esp. phosphate ester - comprises layer of enzyme, inactivated by pollutant, and specific colour forming substrate
11/07/1990EP0396195A2 Polyethylene evaporation covers
11/07/1990EP0363472A4 Quantitative carbon dioxide detector
11/06/1990US4968631 Method for detecting amines and aldehydes using lanthanide chelate fluorophores based on dihydropyridine condensation products
11/06/1990US4968630 Selectivity improvement for lithium ion tests
11/06/1990US4968484 Annular gel reactor for chemical pattern formation
11/01/1990WO1990013025A1 Paper for detecting hydride and solution for preparing said paper
10/1990
10/31/1990EP0395300A2 Thin film diagnostic device
10/31/1990CN1046604A Water hardness quickly measuring agent
10/31/1990CN1010251B Method for measuring ion density and like, graduated piece and graduation of measurer used therein
10/30/1990CA1275614C Diffusion sample collector for gaseous media
10/25/1990DE3913632A1 Modular titration unit - for different simultaneous programmes and is freely adaptable by final user
10/24/1990EP0394108A1 Installation for continuous and real-time measurements of metal masses in acid solution, and of the acidity of this solution
10/24/1990EP0393961A2 Porous, absorbent, multiple element diagnostic device
10/23/1990US4965047 Analytical test strip
10/18/1990WO1990012317A1 Computerized unit for the study and evaluation of fcc catalysts
10/17/1990EP0392462A2 Method for selective complexometric quantitative determination of N-(phosphonomethyl)-glycin-(glifosat(R)) and derivatives thereof
10/16/1990US4963324 Colorimetric dosimeter
10/16/1990CA1275231C Capillary flow device
10/10/1990EP0391109A2 Tear production measuring sheet and package therefor
10/10/1990CN1046043A Exhaust gas detection tube for gasoline-vechicle and its mfg. method
10/10/1990CN1009962B Chemical method for the measurement of low temp. plasma
10/10/1990CN1009956B Automatic titrator for turbidity
10/09/1990US4962039 Simple and rapid method for detecting the presence of water in various organic fluids
10/09/1990US4962019 Bis/nitrophenyl/ disulfide derivatives
10/03/1990EP0390727A2 Diaphragmless measuring cell for the coulombmetric Karl Fischer-titration
10/03/1990EP0268646B1 System for the analysis of sulphur in liquid hydrocarbons
10/02/1990US4960711 Continuous assaying without adverse effects of interferers
10/02/1990US4960710 Device and method of assaying for trace mounts of proteins
10/02/1990US4960585 Rapid hair pH indication and solution therefor
10/02/1990US4960565 Acid monitoring kit
10/02/1990CA1274758A1 Method for evaluating the surface condition of keratinic fibres, and compound used in said method
09/1990
09/27/1990DE3909648A1 Method and apparatus for determining the total nitrogen content
09/26/1990EP0389003A1 Solid-phase analytical device and method for using same
09/26/1990EP0388590A2 Method for determining degradable organic matter in a gaseous phase
09/20/1990WO1990010869A1 Analyte assay device and apparatus
09/20/1990DE3907683A1 Indikator, verfahren zu seiner herstellung sowie seine verwendung Indicator, process for its preparation and its use
09/18/1990US4957108 Collection of fluids in dermal patch; dehydration
09/18/1990CA1274174A1 Analytical device and method for using same
09/14/1990CA2010133A1 Acid monitoring kit
09/12/1990CN2062049U Analyzer for sand content
09/12/1990CN1009572B Mfg. heat-sensitive indicator for autoclaving
09/10/1990WO1990010868A1 Indicator, process for obtaining it and its use
09/10/1990CA2050280A1 Indicator, process for obtaining it and its use
09/07/1990WO1990010218A1 Method and apparatus for determining non-triglycerides in oils
09/05/1990EP0385797A2 A method and apparatus for detecting transition and rare earth elements in a matrix
09/04/1990CA1273634A1 Aniline derivatives and agents for the detection of redox systems comprising them
09/02/1990CA2011295A1 System for detecting transition and rare earth elements in a matrix
08/1990
08/29/1990EP0384504A1 Detection strip for detecting and identifying chemical air contaminants, and portable detection kit comprising said strips
08/29/1990EP0384195A2 Reagent for coulometrically determining water capacity
08/28/1990US4952513 Not for ketones and aldehydes; forming reaction product in situ with derivatizing agent
08/24/1990CA2010592A1 Detection strip for detecting and identifying chemical air contaminants, and portable detection kit comprising said strips
08/21/1990US4950610 Titrating apparatus and method
08/21/1990US4950456 Decomposition of sample in oxygen rich atmosphere; analysis of combustion gas
08/16/1990EP0382207A2 Analytical element for whole blood
08/16/1990EP0270595B1 An optically active reagent and a method for the determination of enantiomeric amine compounds
08/14/1990CA1272668A1 Volume independent test device
08/07/1990US4947000 Aromatic phosphine oxide compound
08/07/1990US4946797 Continuous diluting with water after stopping applying microwave energy to prevent a sudden surge in gas evolution
08/07/1990US4946705 Quantifying exposure time to a gas using a test strip
08/07/1990US4946649 Colorimetric gas diffusion testing tube
08/03/1990WO1990008954A1 Test swab and methods of making and using same
08/02/1990DE3902453A1 Verfahren zur herstellung von reagenzpapier Process for the preparation of test paper
08/01/1990EP0379716A1 Chemiluminescent 1,2-dioxetane compounds
07/1990
07/31/1990US4945063 Method for detecting organic compounds by photoacoustic conversion
07/31/1990US4944921 Automated PCB analyzer system
07/26/1990DE4000515A1 Mikrowellenveraschungs- und analysegeraet, komponenten und verfahren Mikrowellenveraschungs- and analysegeraet, components and methods
07/25/1990EP0379090A2 Analyser for gas from an extraction furnace
07/25/1990EP0379025A2 Combustion furnace for burning sample to be analyzed
07/18/1990EP0377738A1 Method for determining chloride
07/18/1990EP0377729A1 Improved methods of using chemiluminescent 1,2-dioxetanes.
07/18/1990EP0185654B1 Multilayer element for analysis
07/12/1990WO1990007511A1 Enhanced chemiluminescence from 1,2-dioxetanes through energy transfer to tethered fluorescers
07/10/1990US4940667 Apparatus for monitoring the quality of water
07/10/1990CA1271399A1 Ethylene oxide monitoring device
07/10/1990CA1271398A1 Diagnostic test device
07/04/1990EP0376110A2 Test strip analysing system
07/04/1990EP0376098A2 Test container for apparatuses to detect or measure gases
07/04/1990CN1043567A Rapid measuring method and apparatus for micro anti-active index
07/03/1990US4939085 Oxidized coenzyme-containing dry analytical element
07/03/1990US4938926 Test device for chlorine measurement and method of making and using same
06/1990
06/27/1990EP0374685A2 Enzymatic detection device for gases and aerosols
06/27/1990EP0374620A2 Method and means for the determination of maleimide groups
06/27/1990CN2058755U Reagent ribbon specially for urine-analysing instrument
06/27/1990CN2058754U Linkage apparatus for analysing drug using titration
06/26/1990US4937050 Apparatus for the evaluation of a test carrier for the analytical determination of components of a body fluid
06/26/1990CA1270817A1 Hydroxy-substituted cyanoformazans and their use in analytical compositions and methods
06/20/1990EP0373863A2 Analytical test device
06/20/1990CN2058494U Testing device for carbon black structure
06/20/1990CN2058493U 漏斗 Funnel
06/19/1990US4935374 Polyethylene evaporation covers
06/19/1990US4935206 Method and apparatus for measuring the reaction of an indicator to the presence of various gases
06/19/1990CA1270581A1 Analysis system for sulphur in liquid hydrocarbons
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