Patents
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)
11/1988
11/22/1988US4786602 Iodine and dye, optical density
11/22/1988US4786595 Analytical element for analysis of an analyte
11/17/1988EP0290921A2 Test-piece for the analysis of a liquid sample and method for its preparation
11/17/1988EP0290920A2 Container for test-strips
11/17/1988EP0290473A1 Use of lanthanide chelate fluorophores based on dihydropyridine condensation products
11/16/1988CN87103376A Novel water-treating hardness test colorimetric agent
11/15/1988US4784833 Pyrolysis chamber, flame ionization detector
11/09/1988EP0289564A1 System and method for thermogravimetric analysis
11/09/1988CN88200537U Non-planar analytical reagent card
11/08/1988US4783418 Method of determining the nicotine content of tobacco
11/08/1988US4783317 Measuring temperature rise by monitoring h2o2 and chlorite concentrations; scrubbing flue gases
11/08/1988US4783316 Colorimetric gas dosimeter
11/08/1988US4783315 Analysis material sheet
11/01/1988US4782017 Analytical element and method for determination of theophylline by enzyme inhibition
11/01/1988US4781890 Light-blocking layer, titanium dioxide; fluoride salt-forming cation
10/1988
10/26/1988EP0287883A1 Test strip device with volume metering capillary gap
10/26/1988EP0287846A1 2-Hydroxy-3-amino-propionic-acid-N,N-diacetic acid and its derivatives, their preparation and their use, particularly as complexing agents, and detergents containing them
10/26/1988EP0287731A2 Dry test strips having a red blood cell exclusion layer
10/26/1988EP0287730A1 Method and apparatus for detecting hydrogen-containing hydrogen-positive gases
10/25/1988US4780411 Water-absorbing, essentially water-free membrane for reagent substrates and methods of preparing the same
10/25/1988US4780283 Apparatus for the evaluation of a test carrier for the analytical determination of components of a body fluid
10/25/1988US4780282 Dosimeter for measuring exposure to hydrazine and hazardous hydrazine derivatives
10/25/1988US4780280 Test carrier
10/20/1988WO1988008137A1 Determination of ions in fluids
10/20/1988DE3712440A1 Assay system and method for determining a plurality of analytical parameters
10/19/1988EP0287330A2 Chromogenic hemispherands useful for detecting electrolytes
10/19/1988EP0287329A2 Chromogenic cryptahemispherands useful in detecting electrolytes
10/19/1988EP0287328A2 Preparation of chromogenic cryptahemispherands
10/19/1988EP0287327A2 Compounds for determining cations
10/19/1988EP0287326A2 Reagent and methods for determining cations
10/19/1988EP0287112A2 Integral multi-layer analysis element
10/19/1988EP0287051A2 Thin slab shaped dosimeter with a curved substrate support
10/18/1988US4778764 Detection system and method
10/18/1988US4778570 Process for determining the organic halogen content of organic samples
10/13/1988DE3810534A1 Process and apparatus for studying refrigerants in a closed system
10/12/1988EP0286039A2 Determination of potassium ions in fluids
10/11/1988US4777143 Method of detecting carboxylic acids in a specimen
10/11/1988US4777131 Method of determining sugar content of tobacco using a discrete analyzer
10/11/1988US4776904 Fusing laminates using ultrasonic or laser energy
10/11/1988US4776869 Method for preparing substrates for optical sensors
10/11/1988US4776612 Devices for recording test results, and test kits comprising them
10/05/1988EP0284951A2 New dicyanoethylaryl derivatives, processes for their preparation and their use as redox indicators
10/05/1988EP0284691A1 Measurement of alkali ion concentration
10/04/1988US4775634 Oxidation and measurement chambers
10/04/1988US4775633 Detection of hydrazine compounds in gaseous samples by their conversion to nitric oxide-yielding derivatives
10/04/1988US4775516 Apparatus for monitoring the carbon content of boiler flue ash
09/1988
09/28/1988EP0283887A1 Titration method for chemical analysis of a sample and apparatus for the execution of this method
09/28/1988EP0283613A2 Dry test strip suitable for oxygen demanding detection system
09/28/1988EP0164379B1 Process for determining the presence of bis-(2-chlorethyl-sulphide) or bis-(2-chlorethyl-imine)
09/27/1988US4774054 Axially protected test strips
09/22/1988WO1988007196A1 Method of and equipment for determining concentration of a component of a liquid sample by means of potentiometry
09/22/1988DE3735530C1 Verfahren zum Nachweis von Schadstoffen in festen Proben A method for detecting pollutants in solid samples
09/21/1988EP0283285A2 Method and apparatus for monitoring analytes in fluids
09/21/1988EP0283206A2 Covalently labeled siloxane polymers
09/21/1988EP0282925A2 SO2 gas analyzer
09/21/1988EP0282901A2 Colorimetric gas measuring device
09/21/1988CN88101182A Method and apparatus for assaying one of components concentration in liquid sample by potential mensuration
09/20/1988US4772707 Certain N,N'-dipyridine copper or manganese complexes
09/20/1988US4772561 Test device and method of determining concentration of a sample component
09/20/1988US4772560 Laminated wafer for sensing and monitoring exposure to gases
09/14/1988EP0282178A1 Indicator elements for autoclaves
09/14/1988EP0281939A2 Colorimetric gas measuring device for fluor
09/14/1988EP0281938A2 Device for heat treating of gas samples
09/13/1988US4770993 Hybridoma tumor cell lines and their monoclonal antibodies to thaumatin
09/07/1988WO1988006730A1 Method and system for determining organic matter in an aqueous solution
09/07/1988EP0281221A2 Atomic absorption analysis apparatus
09/07/1988EP0140886B1 Film badge for determining carbonyl compounds
09/06/1988US4769218 Test tube with flame arrester for combustible gases
09/06/1988US4769217 Apparatus for measuring content of organic carbon
09/06/1988CA1241650A1 Activated aminoglycosides and aminoglycoside- aminocyclitols and their preparation
08/1988
08/31/1988EP0280558A2 Disposable container configured to produce uniform signal
08/31/1988EP0280335A2 Analysis of organic material
08/31/1988CN87215236U Multifunction sulfide separator
08/24/1988EP0279574A1 Analytical test strip
08/24/1988EP0279454A2 Assistant combustion agent for the use in a high-frequency combustion furnace
08/24/1988EP0279142A2 A frozen foodstuffs thawing detector device
08/24/1988EP0279069A2 Method and device for ketone measurement
08/23/1988US4766080 Precipitation as dispersed particles; determination of maximum rate of change in optical density
08/23/1988US4765962 Gas testing vial
08/17/1988EP0278496A1 Integral multilayer analysis element
08/17/1988EP0278096A2 Method for continuously controlling emissions and immissions of mercury
08/17/1988CN87214717U Arsenic measuring apparatus using silver diethyldithiocarbamate colorimetry
08/11/1988WO1988005911A1 Optical carbon monoxide sensors impregnated on porous monolithic substrates
08/11/1988DE3742333A1 Integral reactor pipe section for the study of heterogeneously catalytic processes
08/11/1988DE3742332A1 Measurement cell for integral experimental reactors for studying heterogeneously catalytic processes
08/09/1988US4762691 Using organic solvent
08/03/1988EP0277033A2 Article and Method for Vapochromic Monitoring, utilising transition - metal double complex salts
08/03/1988CN87108365A Test carrier for analytical determination of components of body fluids
08/02/1988US4761744 Method and device for determining heats of combustion of gaseous hydrocarbons
07/1988
07/27/1988CN87212448U Ampoule testing standard agent
07/26/1988CA1239571A1 Reagent test device
07/19/1988US4758519 Method for continuously analysing total gaseous mercury
07/12/1988US4756884 For detecting presence of analyte in physiological fluid sample
07/07/1988DE3644608A1 Method of determining a lead content in fuels and device for carrying out the method
07/06/1988EP0273275A2 Cracking reactor
07/05/1988US4755472 Stable composition for the determination of peroxidatively active substances
07/05/1988US4755471 Tritium radioactivity measuring system
06/1988
06/30/1988DE3710779C1 Practical field instrument and method of detecting chemical warfare agents and poisons in water
06/30/1988DE3624509A1 Arrangement and process for detecting halogen-containing compounds
06/29/1988EP0272518A2 Analytical element for measuring enzyme activity