| Patents for G01N 30 - Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography (41,194) |
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| 09/21/1999 | US5954954 Method and apparatus for determination of analyte concentration |
| 09/21/1999 | US5954937 Efficient electrostatic purification of fluid flowing through serpentine channel formed between anode and cathode members |
| 09/21/1999 | US5954862 Sample inlet liner |
| 09/21/1999 | US5954860 Inductively heated cold-trap analyte injector |
| 09/21/1999 | CA2169104C Improved solid phase microextraction of trace amounts of organic analytes |
| 09/16/1999 | WO1999031481A3 Transport detector with oxide surface coating |
| 09/16/1999 | DE19806640A1 High-pressure and/or high performance liquid chromatography selectivity |
| 09/15/1999 | EP0941468A1 Hybrid one-step immunochromatographic device and method of use |
| 09/15/1999 | EP0840893B1 High performance liquid chromatography method and apparatus |
| 09/15/1999 | CN1045125C Detecting method for formed residual oil and residue of long-life test of non-metal material of satellite bearing |
| 09/14/1999 | US5952556 Gas chromatograph with carrier gas control system |
| 09/14/1999 | US5952235 Solvent extracting meconium sample, applying to non-amine column, eluting and detecting fatty acid ester; for acurate diagnosis of fetal alchohol syndrome |
| 09/14/1999 | US5951873 Chromatographic device with piston locking mechanism and method of packing same |
| 09/14/1999 | US5950674 Fluid control valve arrangement |
| 09/10/1999 | WO1999045148A1 Method for using a quality metric to assess the quality of biochemical separations |
| 09/10/1999 | WO1999044726A1 Channel device for field flow fractionation |
| 09/10/1999 | WO1999022244B1 Method for determination of drugs of abuse in biological samples |
| 09/08/1999 | EP0940676A2 Device for treating biomolecules |
| 09/08/1999 | EP0939675A1 Micromechanical ejection pump for extracting small fluid volumes from a flowing sample fluid |
| 09/08/1999 | EP0794822A4 Solid phase microextraction with vibration |
| 09/07/1999 | US5949536 High pressure optical cell for spectrometry |
| 09/07/1999 | US5948684 Simultaneous analyte determination and reference balancing in reference T-sensor devices |
| 09/07/1999 | US5948470 A selected block copolymer is coated onto the selected substrate and a component of the block copolymer is modified with ozone and physically removed so that the dense periodic pattern of the block copolymer can be transferred onto the |
| 09/07/1999 | US5948360 Autosampler with robot arm |
| 09/02/1999 | WO1999044054A1 Continuous electrolytically regenerated packed bed suppressor for ion chromatography |
| 09/02/1999 | WO1999044053A2 Chromatographic device |
| 09/02/1999 | WO1999043433A2 Devices and methods for test sample preparation |
| 09/02/1999 | WO1999043409A1 Hplc fractionation of complex chemical mixtures |
| 09/02/1999 | WO1999034220A3 Real-time monitoring of an analyte by chromatography using an on-line assay |
| 09/02/1999 | DE19809829A1 Liquid chromatographic analysis of meconium for determination of nicotine and cotinine |
| 09/01/1999 | EP0938365A1 Shear separation method and system |
| 09/01/1999 | EP0938356A1 Ion chromatographic method and apparatus using a combined suppressor and eluent generator |
| 09/01/1999 | EP0697905B1 Method and support material for gel-permeation chromatography |
| 09/01/1999 | EP0588952B1 Method and apparatus for improving electrospray ionization of solute species |
| 09/01/1999 | CN1227633A Apparatus and method for gas chromatography |
| 08/31/1999 | US5945520 Chromatographic resins and methods for using same |
| 08/31/1999 | US5944988 Chromatography buffers center |
| 08/31/1999 | US5944877 Precolumn separator for gas chromatograph |
| 08/26/1999 | WO1999042511A1 Immobilization of membrane receptor on hplc |
| 08/26/1999 | WO1999042489A2 System and method for determining molecular weight and intrinsic viscosity of a polymeric distribution using gel permeation chromatography |
| 08/26/1999 | WO1999042192A1 Packed capillaries, especially for enantiomeric separation |
| 08/26/1999 | WO1999042105A1 Epimorphian compound and its use |
| 08/26/1999 | DE19807667A1 New aromatic sulfide and sulfoxide used as reagent and calibration standard in peroxycarboxylic acid analysis |
| 08/26/1999 | DE19807063A1 Production of capillaries with a chiral sorbent bed |
| 08/26/1999 | CA2322011A1 Immobilization of membrane receptor on hplc |
| 08/26/1999 | CA2318959A1 Epimorphian compound and its use |
| 08/25/1999 | EP0835443B1 Method and silicate composition for conditioning silica surfaces |
| 08/25/1999 | CN1226843A Enzymatic method for removing contaminants from ion exchange and fractionation resin |
| 08/24/1999 | US5943136 Intra-cavity total reflection for high sensitivity measurement of optical properties |
| 08/24/1999 | US5942675 Oven cavity insert in an analytical instrument |
| 08/24/1999 | US5942463 Alkali resistant protein adsorbent |
| 08/24/1999 | US5942093 For controlling precisely the composition and delivery of a liquid at low flow rate; high performance liquid chromatography |
| 08/24/1999 | CA2110343C Gas chromatographic method |
| 08/19/1999 | WO1999041602A1 Thin porous layers for thin-layer chromatography |
| 08/19/1999 | WO1999041601A1 Hand-held detection system using gc/ims |
| 08/19/1999 | DE19803264A1 High-pressure fluid chromatography |
| 08/19/1999 | CA2320800A1 Hand-held detection system using gc/ims |
| 08/18/1999 | EP0935813A1 Ion source for a mass analyser and method of cleaning an ion source |
| 08/18/1999 | EP0935606A1 Method for purification of recombinant proteins |
| 08/18/1999 | EP0910474A4 Absorption-enhanced differential extraction device |
| 08/18/1999 | EP0558742B1 Electrophoresis with chemically suppressed detection |
| 08/18/1999 | CN1226317A Chromatographic assay or test device |
| 08/18/1999 | CN1226316A Method of detecting gynecological carcinomas |
| 08/17/1999 | US5939614 Chromatographic column for microwave heating |
| 08/17/1999 | US5939612 To screen an unknown sample for known analytes with a gas chromatograph |
| 08/17/1999 | US5939536 Methods for purifying cystic fibrosis transmembrane conductance regulation |
| 08/17/1999 | US5939314 Distributed pore chemistry in porous organic polymers in tissue culture flasks |
| 08/17/1999 | US5939252 Detachable-element assay device |
| 08/17/1999 | US5938932 High-throughput method and apparatus for identifying, quantitating and determining the purity of chemical compounds in mixtures |
| 08/17/1999 | US5938931 Eluting samples and reading computer-stored sample injection information together with correlated analysis results on display screen as a print preview |
| 08/17/1999 | US5938930 Adjustment concentration of acetonitrile; adding a surfactant |
| 08/17/1999 | US5938919 Fused silica capillary columns protected by flexible shielding |
| 08/17/1999 | US5938817 Gas chromatograph |
| 08/12/1999 | WO1999040422A1 A valveless gas chromatographic system with pulsed injection and temperature programmed elution |
| 08/12/1999 | DE19805395A1 Dünne poröse Schichten für die planare Chromatographie Thin porous layers for planar chromatography |
| 08/12/1999 | CA2320445A1 A valveless gas chromatographic system with pulsed injection and temperature programmed elution |
| 08/11/1999 | EP0934519A1 Trace vapor detection |
| 08/11/1999 | EP0934417A1 HBV POLYMERASE, RNase H ENZYME DERIVED FROM HBV POLYMERASE, PROCESSES FOR PREPARATION AND USES FOR SCREENING ANTIVIRAL AGENTS THEREOF |
| 08/11/1999 | CN1225449A Ultraviolet and visible light absorbance detector |
| 08/11/1999 | CN1225278A Vivo stain composition, process of manufacture, methods of use to identify dysplastic tissue |
| 08/10/1999 | US5936003 Resin support particles and anion exchange compounds attached wherein the anion-exchange compounds comprise an internal reactive group, which may be an ester, ketone or amide group, and a terminal quaternary ammonium salt which functions as an |
| 08/10/1999 | US5935862 Detecting presence of chemical warfare agents by applying liquid sample to chromatographic adsorbant material and detector agent using microcapillary tube, forming chromogenic indicator; portable, sensitive, accurate |
| 08/10/1999 | US5935845 Distributed pore chemistry in porous organic polymers |
| 08/10/1999 | US5935522 Automated system which performs pcr reactions, purifies the product fragments, and loads the fragments directly onto a separation capillary as well as performing other required steps, utilizing automated fluidic techniques; dna sequencing |
| 08/10/1999 | US5935443 Electrochemically regenerated ion neutralization and concentration devices and systems |
| 08/10/1999 | US5935442 Adsorbent particles comprise a porous composite material having pores allowing access to the interior of the composite material; relative density and particle size range are chosen to provide desired flotation/sedimentation properties |
| 08/10/1999 | US5935430 Structure for capturing express transient liquid phase during diffusion bonding of planar devices |
| 08/10/1999 | US5935429 Chromatography columns with continuous beds formed in situ from aqueous solutions |
| 08/10/1999 | US5935302 Ion chromatography system for conducting an environmental analysis in semiconductor equipment |
| 08/05/1999 | WO1999039195A1 Rapid method for separation of small molecules using reverse phase high performance liquid chromatography |
| 08/05/1999 | WO1999039175A1 Device for qualifying products containing volatile substances |
| 08/05/1999 | WO1999038595A1 Large capacity acid or base generator and method of use |
| 08/05/1999 | WO1999038594A1 Separation of substance mixtures using polysaccharides |
| 08/05/1999 | WO1999022244A3 Method for determination of drugs of abuse in biological samples |
| 08/05/1999 | DE19803415A1 Trennung von Stoffgemischen unter Einsatz von Polysacchariden Separation of mixtures of substances using polysaccharides |
| 08/05/1999 | CA2319386A1 Separation of substance mixtures using polysaccharides |
| 08/05/1999 | CA2318143A1 Rapid method for separation of small molecules using reverse phase high performance liquid chromatography |
| 08/04/1999 | EP0933636A1 Rapid extraction of ciguatoxin from contaminated tissues |
| 08/04/1999 | EP0933633A1 Process for obtaining L-dihydroorotic acid and use thereof |
| 08/04/1999 | EP0932699A1 Methods and kits for obtaining and assaying mammary fluid samples for breast diseases, including cancer |