Patents
Sitemap › G01 - Measuring; Testing › G01N - Investigating or analysing materials by determining their chemical or physical properties › G01N 1 - Sampling; Preparing specimens for investigation
Patents for G01N 1 - Sampling; Preparing specimens for investigation (74,036)
06/1991
06/20/1991DE4037019A1 Collecting cumulative analytical sample form flowing medium - at specified and controlled intervals
06/19/1991EP0433211A2 Apparatus for refrigerant testing in a closed system
06/19/1991EP0433029A1 Apparatus for staining cell objects
06/19/1991CN2079292U Sampler for urinate
06/18/1991US5024952 Method for obtaining analytes from liquid menstrua for analysis
06/18/1991US5024933 Method and kit for sample adherence to test substrate
06/18/1991US5024830 Method for cryopreparing biological tissue for ultrastructural analysis
06/18/1991US5024108 Sample analyzer
06/15/1991CA2031778A1 Magnetic stirrer
06/13/1991WO1991008466A1 Selective detection of vapors
06/12/1991EP0431157A1 Method and apparatus for obtaining analytes from liquid menstrua for analysis
06/12/1991EP0431120A1 Portable, self-contained equipment for the in situ analysis of a liquid or solid substance.
06/12/1991EP0431089A1 Fibre sample holder
06/12/1991EP0430944A1 Automatic sample feeder for suspended samples
06/12/1991CN1052188A Liquid metering and transfer valve assembly
06/11/1991US5023453 Apparatus for preparation and observation of a topographic section
06/11/1991US5023452 Method and apparatus for detecting trace contaminents
06/11/1991US5023187 Drawing trating liquid by capilrary action, exposure to ir rad; treating tissues with stains, reasents
06/11/1991US5022967 Microdistillation apparatus
06/11/1991US5022236 Storage apparatus, particularly with automatic insertion and retrieval
06/09/1991WO1991009307A1 Explosive detection screening system
06/06/1991DE3939914A1 Appts. and method for extn. of polymer melt samples from reactor - submersible pump recirculates melt via four-way valve from which sample is forced into container and cooler
06/05/1991EP0430710A2 Sensor-holding device
06/05/1991EP0430402A2 Methods and compositions for chromosome-specific staining
06/05/1991EP0430359A1 Capillary nebulizer
06/05/1991EP0430317A2 Sampling of drilling mud
06/05/1991EP0430305A2 Apparatus for moving a member along an orbital path
06/05/1991EP0430021A2 Apparatus for sampling crystallizing fluids
06/05/1991EP0429795A1 Control device for the lowering motion of the suction tube of an automatic sample dispenser
06/05/1991CN2078438U Automatic sampler of water quality-flow rate continuous ratio
06/05/1991CN2078437U Totally air-suspended microparticle cutter
06/04/1991US5021294 Plastic slides for microscopes
06/04/1991US5021218 Efficient, protective storage; biopsy materials
06/04/1991US5021217 Attached to a common support body; work efficiency improvement
06/02/1991CA2031047A1 Sensor-holding device
05/1991
05/30/1991WO1991007647A1 Liquid metering and transfer valve assembly
05/29/1991EP0429396A2 Apparatus for detecting gaseous constituents within the inner space of packages
05/29/1991EP0429143A1 Method and apparatus for taking gaseous samples from gas conduits
05/29/1991EP0429030A2 Incubator for microtitration plates
05/29/1991EP0428850A1 Multi-pipe flow-dividing dilution system
05/29/1991DE3938076A1 Preliminary vol. delivered for flushing milk feed conduit - controlled by advancing boundary between flushing milk and propelling gas
05/29/1991CN2077992U Automatic tractive ore-pulp sampling machine
05/29/1991CN2077776U Slideboard for microscopic slice
05/29/1991CN1051792A Method and apparatus for auditing means used for measuring characteristics of bulk material and for extracting aliquot from bulk material
05/28/1991US5019208 Method for determining the depth of permeation of a modifier into the interior of a thermoplastic article
05/28/1991US5019139 For A Mass Spectrometer
05/28/1991US5018855 Atomic absorption process monitoring
05/28/1991US5018395 Gas sampling device with improved mixed flow fan
05/28/1991US5018394 Continuously adjustable diluting device for mixing predetermined volumes of liquid
05/28/1991CA2029463A1 Sampling of drilling mud
05/28/1991CA1284455C Isolation fluid control device and water cup
05/28/1991CA1284430C Automatic material sampler
05/23/1991DE4000677A1 Geraet zur entnahme von bodenproben Geraet to earth sample
05/23/1991DE3920979A1 Fixation and transport of muscle biopsy samples - in 3,3-di:methoxy-propane, preventing loss of enzymatic activity
05/22/1991EP0428500A2 Method for pipetting and/or titrating liquids using a hand held self-contained automated pipette
05/22/1991EP0428184A2 Reagent test strip reading instrument
05/22/1991EP0427823A1 Specimen collection device and method.
05/22/1991CN2077543U Oil-in-water sampler
05/22/1991CN2077449U Infrared controlled constant-current double-ejection electrolytic polisher
05/22/1991CN1051623A Sampler for measuring oil in water
05/21/1991US5018209 Analysis method and apparatus for biological specimens
05/21/1991US5017500 Fat extraction process and apparatus
05/21/1991US5017007 Apparatus and microbase for surface-enhanced raman spectroscopy system and method for producing same
05/21/1991CA1284270C Reagent for giving transparency to biological media and its analytical applications
05/18/1991WO1991007486A1 Device for processing biological specimens for analysis of nucleic acids
05/18/1991CA2068891A1 Device for processing biological specimens for analysis of nucleic acids
05/16/1991WO1991006841A1 Splitter apparatus
05/16/1991WO1991002238A3 Biological assay cassette and method for making same
05/16/1991DE4035585A1 Pump system for extracting liq. specimens - has small dia. pumps in series of acid-resistant material with acid-resistant connections
05/16/1991DE3909442A1 Microtome cutting method for positive detection of cellular reactions - using intra=ocular lens implants which do not dissolve but which are preserved, enabling position of connection region to be detected
05/15/1991EP0427569A2 Multi-concentration disposable liquid concentrating device
05/15/1991EP0427089A2 Laboratory apparatus for the separation of substances from gas samples
05/15/1991EP0426778A1 Apparatus and method for the sequential performance of chemical processes
05/15/1991EP0200768B1 Sample splitter
05/15/1991CN2077125U Small industrial boiler water sampling unit
05/15/1991CN2077124U 自动取样装置 Automatic sampling device
05/15/1991CN1012629B Method for analysis of impurity elements in gallium
05/14/1991US5016196 Rain sampling device
05/14/1991US5015445 Process and apparatus for hydrolysis of proteins and peptides
05/14/1991US5014561 Method and apparatus for obtaining accurate sample
05/09/1991WO1991007648A1 Combined centrifuge tube and porous selection means for separation and recovery of biological materials
05/09/1991CA2068220A1 Combined centrifuge tube and porous selection means for separation and recovery of biological materials
05/08/1991EP0425690A1 Method of detecting operation condition of a micropipette
05/08/1991EP0425509A1 Calibration device for use in calibrating a sensor.
05/08/1991DE4031833A1 Branching off arrangement for partial quantities of milk flow in pipe - has by=pass tube around section contg. aperture to branching tube and deflection plate
05/08/1991CN2076670U Sampler for bulk material belt conveying end
05/08/1991CA2018512A1 Air sampler
05/07/1991US5013522 Corrosion products in water-cooled nuclear reactor
05/07/1991US5012845 Fluid injector
05/07/1991US5012683 Capacitive liquid interface sensor
05/07/1991US5012681 Sampling procedures and protective layers for the preservation of particulates obtained by filter collection and impingement operations
05/04/1991CA2029017A1 Apparatus for collecting samples from ground-holes
05/02/1991WO1991005848A1 Apparatus for determination of the ability and the rapidity of particles to absorb substances
05/02/1991WO1991005609A1 Pipetter
05/02/1991EP0425297A2 Column analyzer system
05/02/1991EP0425216A2 Laboratory evaporation apparatus
05/02/1991DE4032974A1 Specimen material concentrating appts. - has hollow cylindrical collecting electrode, spray electrode and suction system raising sensitivity of analyser
05/02/1991DE3935161A1 Collecting partial specimens from granular material - using collection and constriction stages followed by time regulated dispersal over arc into containers esp. for coke or ballast coal
05/01/1991CN2076236U Sample-separated filter
05/01/1991CN2076235U Essential safety type dust sampler with two pump for coal mine
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