| 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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| 10/10/2012 | CN102721774A Method for determining content of umbelliferone in traditional Chinese medicine levisticum | 
| 10/10/2012 | CN102721773A Content determination method of sanguisorbin I | 
| 10/10/2012 | CN102721772A Method for simultaneously extracting amoxicillin, amoxicillin acid, diketopiperazine amoxicillin and ampicillin from eggs | 
| 10/10/2012 | CN102721771A Gas chromatographic column pretreatment method for high-viscosity alcohol or/and amines | 
| 10/10/2012 | CN102721770A Method for simultaneously measuring alpha-acids, beta-acids and iso-alpha-acids in hops | 
| 10/10/2012 | CN102721769A Pretreatment method for viscous flavor | 
| 10/10/2012 | CN102721768A Sample pre-processing device and sample processing method for determining nitrosamine in cigarette flue gas | 
| 10/10/2012 | CN102721767A Method for separating and analyzing polyethylene residues in soil environment | 
| 10/10/2012 | CN102721766A Application of solid phase microextraction in content analysis of naphthalene in Corex furnace gas | 
| 10/10/2012 | CN102721765A Method for determining content of acrylonitrile monomer in polyacrylonitrile polymer liquid | 
| 10/10/2012 | CN102721764A Method for controlling quality of ganoderma lucidum alcohol extract | 
| 10/10/2012 | CN102721763A Method for detecting chloropropanol ester in oil by high performance liquid chromatography | 
| 10/10/2012 | CN102721762A Method for detecting organophosphorus pesticide residues in capsanthin | 
| 10/10/2012 | CN102721761A Method for detecting content of perchlorate in solid media in environment through chromatography of ions and application thereof | 
| 10/10/2012 | CN102721760A Method for measuring content of related substances in bosentan or preparation of bosentan | 
| 10/10/2012 | CN102721759A Method for quickly and efficiently measuring flavanols in wine | 
| 10/10/2012 | CN102721758A Method for measuring residues of pyrethroids pesticides in vegetables by gas chromatography | 
| 10/10/2012 | CN102721757A Method for detecting residual quantity of perfluoroalkylation compounds in cosmetics | 
| 10/10/2012 | CN102721756A Synthesis of (R)-N-methylnaltrexone | 
| 10/10/2012 | CN102721755A Method and apparatus for determining active nitrogen oxide component in particle state in atmosphere particle | 
| 10/10/2012 | CN102721754A A method for determining phthalate content in traditional Chinese medicine by adopting a liquid chromatography-mass spectrometry method | 
| 10/10/2012 | CN102721753A Cascade dynamic nitrogen adsorption instrument | 
| 10/10/2012 | CN102721590A Continuous lossless whole rock natural gas generation simulation method | 
| 10/10/2012 | CN102718880A Ganoderma lucidum polysaccharide of high molecular weight and detection method thereof | 
| 10/10/2012 | CN102718747A Olprinone hydrochloride derivate and synthetic method thereof | 
| 10/10/2012 | CN102718707A Hydroxychloroquine derivative and preparation method thereof | 
| 10/10/2012 | CN102718678A Pre-column derivation reagent and preparation process | 
| 10/10/2012 | CN102716726A Formula and preparation and filling method for packing of gas chromatographic analysis column in transformer oil | 
| 10/10/2012 | CN102716275A Detection method of anti-anxiety pharmaceutical composition | 
| 10/10/2012 | CN102206621B Enzyme microreactor based on cation-exchange membranes | 
| 10/10/2012 | CN102175788B Method for detecting contents of citrinin in monascus by liquid chromatograph/mass spectrometer (LC/MS) | 
| 10/10/2012 | CN102109504B Automatic calibration method and device | 
| 10/10/2012 | CN102095814B Method for determining volatile nitrosamines in cosmetics | 
| 10/10/2012 | CN102058710B Detection method of capsule preparation for treating arthritis | 
| 10/10/2012 | CN102052275B Parallel liquid phase chromatographic pump | 
| 10/10/2012 | CN101980011B Method for measuring main active ingredient propyl gallate of Chinese medicinal material additive in cigarettes | 
| 10/10/2012 | CN101952717B Suppressor utilizing micro ion exchange tube and ion chromatograph utilizing the same | 
| 10/10/2012 | CN101949714B Method and system for testing high temperature tolerance and compatibility of optical fiber in oil | 
| 10/10/2012 | CN101900712B Pharmacokinetic testing method of Exendin-4 | 
| 10/10/2012 | CN101762667B Method for detecting coumarin series compounds | 
| 10/10/2012 | CN101738438B Detection method of related substances of nitrendipine and atenolol compound composition | 
| 10/10/2012 | CN101726550B High performance liquid chromatography for content of glycolic acid n-butyl and impurities | 
| 10/10/2012 | CN101706484B Method for synchronously purifying and separating organic extract of environmental medium step by step | 
| 10/10/2012 | CN101680861B Flow distributing valve | 
| 10/10/2012 | CN101679529B Separating agent for optical isomer | 
| 10/10/2012 | CN101629935B Method of determining content of 2,6-dichloroquinoxaline | 
| 10/10/2012 | CN101625346B Method for synthesizing integral bed for cracking solution analysis | 
| 10/10/2012 | CN101548182B Needle interface for fluid connections | 
| 10/10/2012 | CN101331397B Chromatographic systems and methods for eliminating interference from interfering agents | 
| 10/09/2012 | US8282799 Method for continuous particle separation using obstacle arrays asymmetrically aligned to fields | 
| 10/09/2012 | US8281809 Aerosol inlet flow modulator | 
| 10/09/2012 | CA2680183C The quantitative determination of risedronate in urine by spe-lc-ms-ms | 
| 10/09/2012 | CA2568628C Ion trap mass analyzer | 
| 10/04/2012 | WO2012135277A1 Pre-concentrator and method of using the same | 
| 10/04/2012 | WO2012134381A1 Method and means for sample preparation | 
| 10/04/2012 | WO2012133269A1 Instrument and method for analysis of mannose 6-phosphate | 
| 10/04/2012 | WO2012130923A1 Method for a chromatographic analysis of a hydrogen-containing gas mixture | 
| 10/04/2012 | WO2012130457A1 Sample carrier board and method for the automatic extraction and direct analysis of samples | 
| 10/04/2012 | WO2012129847A1 Methods for simultaneously determinating multi-component of simotang and fingerprint building method thereof | 
| 10/04/2012 | US20120252050 Methods for assessing risk of bone fracture | 
| 10/04/2012 | US20120252041 Method of prognosis | 
| 10/04/2012 | US20120252033 Substance determining apparatus | 
| 10/04/2012 | US20120252006 Methods and Systems for Multiple Control Validation | 
| 10/04/2012 | US20120252004 Highly sensitive immunochromatography method | 
| 10/04/2012 | US20120251393 Dispensing nozzle for automatic analyzer, and automatic analyzer including same | 
| 10/04/2012 | US20120248033 Porous materials for solid phase extraction and chromatography and processes for preparation and use thereof | 
| 10/04/2012 | DE102011006452A1 Verfahren zur chromatographischen Analyse eines Wasserstoff enthaltenden Gasgemischs A method for the chromatographic analysis of a gas mixture containing hydrogen | 
| 10/04/2012 | DE102011001743A1 Verfahren zur Trennung/Reinigung von Biomolekühlen Process for the separation / purification of Biomolekühlen | 
| 10/03/2012 | EP2504695A1 Method and arrangement for gas chromatographic analysis of a gas sample | 
| 10/03/2012 | CN202472921U Chromatograph anti-control device for monitoring beam tube | 
| 10/03/2012 | CN202471668U Multi-chromatographic column component separation preparation instrument | 
| 10/03/2012 | CN202471667U Component separation and preparation instrument for single chromatographic column | 
| 10/03/2012 | CN202471666U Mixed gas analytical equipment in power transformer oil breather based on gas chromatographic technology | 
| 10/03/2012 | CN202471665U Power-off protection device for gas chromatograph | 
| 10/03/2012 | CN202471664U Sampling device of chromatographic online analyzer of analytical reactor | 
| 10/03/2012 | CN202471663U Pretreatment reagent kit for measuring thimerosal residues in animal derived food | 
| 10/03/2012 | CN202471662U Solid phase extraction device for sample pretreatment | 
| 10/03/2012 | CN202471661U Three-channel beam tube monitoring data processing and intelligent control device | 
| 10/03/2012 | CN202471634U Device for quantitatively analyzing and rapidly converting argon in metal | 
| 10/03/2012 | CN202471477U Dark frame for mixing and analyzing mecobalamine | 
| 10/03/2012 | CN102713600A Column for liquid chromatography | 
| 10/03/2012 | CN102713599A Liquid chromatograph and liquid feeder for liquid chromatograph | 
| 10/03/2012 | CN102707012A Narrow band thin-layer chromatographic sheet and preparation method thereof | 
| 10/03/2012 | CN102707011A Thin-layer chromatography identification method of white gourd kernel formula granules | 
| 10/03/2012 | CN102707010A Quality detection method of Chinese medicinal preparation fetal lie pill | 
| 10/03/2012 | CN102707009A Method for detecting rhizoma coptidis pills for clearing away heat of upper part of body | 
| 10/03/2012 | CN102707008A Detection method of gynostemma total saponin granules | 
| 10/03/2012 | CN102707007A Quality detection method of five-flavor manna medicine bath preparation | 
| 10/03/2012 | CN102707006A Quality detection method of cudrania tricuspidata formula granules | 
| 10/03/2012 | CN102707005A Method for synchronously analyzing ferric iron and ferrous iron in water sample online | 
| 10/03/2012 | CN102707004A Novel method for researching phase II metabolism of flavone compound by using model organism zebra fish | 
| 10/03/2012 | CN102707003A Moldavica dragonhead extractive and fingerprint spectrum detection method thereof | 
| 10/03/2012 | CN102707002A Method for simultaneously measuring content of various preservatives in soy sauce by capillary gas chromatography internal standard method | 
| 10/03/2012 | CN102707001A Analysis method of microalgae proteome | 
| 10/03/2012 | CN102707000A Determination method of content of ginsenoside Rg1 in Senxianling particles | 
| 10/03/2012 | CN102706999A Analyzing and detecting method for rhizoma corydalis water-soluble non-alkaloid compound | 
| 10/03/2012 | CN102706998A Quality control method for shengmai injection | 
| 10/03/2012 | CN102706997A Detection method of fasudil hydrochloride-related substance | 
| 10/03/2012 | CN102706996A Analysis of Ar and O2, N2, CO2 and N2O in atmospheric air through one-time sampling with gas phase chromatography | 
| 10/03/2012 | CN102706995A Method for extracting plasticizer in plastic packaging materials |