ClassID:

168713

G01N2030/062 - CPC Classification

Classification description:

Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation; Column chromatography; Preparation or injection of sample to be analysed; Preparation extracting sample from raw material

Recent Application in this class:
#1
20260153486
2026-06-04

METHOD FOR SIMULTANEOUS DETERMINATION OF CHLOROGENIC ACID, FERULIC ACID, DRACOHODIN, CINNAMALDEHYDE, LIGUSTILIDE, AND OSTHOLE IN XIANGDU HUOXUE PLASTER

#2
20260153485
2026-06-04

METHOD FOR DETECTING HALOGENATED ORGANIC SUBSTANCES IN LANDFILL LEACHATE AND POLLUTED WATER THEREOF

#3
20260035621
2026-02-05

METHOD FOR EXTRACTION AND ANALYSIS OF POLYCYCLIC AROMATIC HYDROCARBONS IN PETROLEUM PRODUCTS

#4
20260023052
2026-01-22

METHOD FOR MEASURING CONCENTRATION OF PER- AND POLYFLUOROALKYL SUBSTANCE AND LIQUID CHROMATOGRAPHY-TANDEM MASS SPECTROMETRY SYSTEM

#5
20260023050
2026-01-22

METHODS FOR ANALYZING LIPID NANOPARTICLES AND USES THEREOF

#6
20260014572
2026-01-15

GAS-LIQUID SEPARATOR AND SAMPLE COLLECTION METHOD USING SAME

#7
20260002913
2026-01-01

METHOD AND SYSTEM FOR ANALYZING HYDROCARBON-CONTAINING SAMPLES

#8
20250389709
2025-12-25

METHOD FOR SEPARATING AND ANALYZING BIOMARKERS FROM SEDIMENTS

#9
20250362275
2025-11-27

MODULAR SYSTEM AND METHODS FOR VACUUM VAPORIZATION FOR COUPLING AND ANALYSIS IN GAS CHROMATOGRAPH APPLICABLE TO HYDROCARBONS PRESENT IN OIL SOURCE ROCKS

#10
20250258146
2025-08-14

QUANTITATIVE DETECTION METHOD OF MULTIPLE METABOLITES IN BIOLOGICAL SAMPLE AND METABOLIC CHIP

#11
20250231155
2025-07-17

ANALYZING GASES FROM INCLUSIONS IN MINERALS

#12
20250224404
2025-07-10

DETECTION OF INSULIN-LIKE GROWTH FACTOR-2 VARIANTS BY MASS SPECTROMETRY

#13
20250172532
2025-05-29

METHOD FOR DETECTING FOOD CONTAMINATION USING STABLE ISOTOPE-LABELED STANDARDS

#14
20250067716
2025-02-27

PREDICTED BIAS CORRECTION FOR DRILLING FLUIDS

#15
20240424041
2024-12-26

FLAMMULINA VELUTIPES PROTEOGLYCAN (FPG) AND DUAL-WAVELENGTH SCREENING METHOD AND USE THEREOF

#16
20240310335
2024-09-19

EXTRACTING VITAMINS B1 AND C FROM COMMIPHORA MYRRHA

#17
20240310334
2024-09-19

EXTRACTING VITAMINS B1 AND C FROM COMMIPHORA MYRRHA

#18
20240288409
2024-08-29

MULTIRESIDUAL METHOD FOR DETECTING AND/OR QUANTIFYING AMINO ACIDS, ORGANIC ACIDS AND/OR MODIFIED NUCLEOTIDES BY MEANS OF HILIC CHROMATOGRAPHIC SEPARATION AND MS/MS

#19
20240230607
2024-07-11

FINGERPRINT SPECTRUM CONSTRUCTION METHOD FOR XIHUANG CAPSULES AND FINGERPRINT SPECTRUM

#20
20240192190
2024-06-13

DETERMINING RESERVOIR FLUID COMPOSITION TO PENTATETRACONTANES PLUS

#21
20240133851
2024-04-25

FINGERPRINT SPECTRUM CONSTRUCTION METHOD FOR XIHUANG CAPSULES AND FINGERPRINT SPECTRUM

#22
20240123371
2024-04-18

METHOD FOR EXTRACTING ORGANIC HALOGEN COMPOUND

#23
20240084328
2024-03-14

METHODS FOR ANALYSIS OF VIRAL CAPSID PROTEIN COMPOSITION

#24
20230324346
2023-10-12

METHOD FOR MEASURING SPECIFIC MIGRATION AMOUNT OF ANTIOXIDANT IN PET/PE COMPOUND FOOD CONTACT MATERIAL

#25
20230204478
2023-06-29

SOLID PHASE EXTRACTION METHODS FOR ENHANCED REMOVAL OF PHOSPHOLIPIDS FROM BIOLOGICAL SAMPLES

#26
20230152284
2023-05-18

METHOD OF QUANTITATIVELY ANALYZING 11 AMIDE ALKALOIDS IN TOBACCO LEAVES USING GAS CHROMATOGRAPHY-TANDEM MASS SPECTROMETRY

#27
20230123464
2023-04-20

METHODS FOR DIAGNOSING EXPOSURE TO COLORECTAL CANCER CARCINOGENS USING BIOLOGICAL SAMPLES

#28
20230113026
2023-04-13

Apparatuses and Methods for Performing Multiple Omics Analysis and Processing Analyte Mixtures

#29
20230067319
2023-03-02

PARTICLE DETECTION DEVICE AND OPERATION METHOD

#30
20230036010
2023-02-02

SAMPLE PREPARATION AND ANALYSIS OF CANNABINOID CONCENTRATION USING SIMPLIFIED LIQUID EXTRACTION

#31
20220396598
2022-12-15

PEPTIDE PURIFICATION FORMULATIONS AND METHODS

#32
20220326200
2022-10-13

METHOD FOR ESTABLISHING FINGERPRINT OF TRADITIONAL CHINESE MEDICINE COMPOUND OR ITS PREPARATION WITH IMPROVING COGNITION

#33
20220317137
2022-10-06

Test kit for testing fat-soluble vitamins in serum using high performance liquid chromatography coupled with tandem mass spectrometry

#34
20220317096
2022-10-06

Residual corrosion inhibitor monitoring

#35
20220308068
2022-09-29

BIOMARKER IN OSTEOPOROSIS INTERVENTION THERAPY BY BONE PEPTIDE, SCREENING METHOD AND USE THEREOF

#36
20220290560
2022-09-15

Determining reservoir fluid composition to pentatetracontanes plus

#37
20220275398
2022-09-01

Methods for analysis of viral capsid protein composition

#38
20220252552
2022-08-11

Gas chromatograph-mass spectrometer

#39
20220221433
2022-07-14

MASS SPECTROMETRY ASSAY METHODS FOR DETECTION OF METABOLITES

#40
20220186616
2022-06-16

MEASURING EXTRACTION EFFICIENCY FOR DRILLING FLUID

#41
20220184528
2022-06-16

METHOD AND DEVICE FOR SAMPLE PREPARATION

#42
20220137006
2022-05-05

Odor evaluation device, odor evaluation method and device for preparing gas for odor evaluation

#43
20220107291
2022-04-07

Total organofluorine method for PFAS using reductive defluorination

#44
20220018816
2022-01-20

System for flushing a gas-measurement device for analyzing gas from a well, and related methods

#45
20210405000
2021-12-30

Gas phase component analysis device and gas phase component analysis method

#46
20210349063
2021-11-11

Method for screening of tobacco nicotine converters

#47
20210333250
2021-10-28

Method for high-throughput screening of non-target biomarkers based on metabolic perturbation caused by pollutants

#48
20210302394
2021-09-30

Dispersive solid-phase extraction material, preparation method therefor and application thereof

#49
20210285918
2021-09-16

Method for determining content of menthol in preparation of traditional Chinese medicine composition

#50
20210199630
2021-07-01

Micro solid phase extraction devices and methods

#51
20210199624
2021-07-01

Micro solid phase extraction devices and methods

#52
20210190733
2021-06-24

Method for simultaneously determining fat-soluble vitamins and carotenoids in serum

#53
20210163525
2021-06-03

Ultrasonic-assisted pretreatment method for extraction of multiple steroid hormones in sediment

#54
20210078948
2021-03-18

Phenyl amino sodium propionate derivative, preparation method therefor and application thereof

#55
20210050205
2021-02-18

Apparatus and method for generating chemical signatures using differential desorption

#56
20200393427
2020-12-17

Metabolome sampling and analysis method for analyzing metabolome during synthetic gas fermentation of synthetic gas fermentation microorganisms

#57
20200393424
2020-12-17

Preprocessing apparatus and analysis system comprising the preprocessing apparatus

#58
20200355587
2020-11-12

Apparatus for solid phase microextraction

#59
20200309742
2020-10-01

Method for extracting pharmacogenetic DNA from biological fluid retained in a solid resin collection device

#60
20200299728
2020-09-24

Methods for analysis of viral capsid protein composition

#61
20200278279
2020-09-03

SAMPLE PREPARATION AND ANALYSIS OF CANNABINOID CONCENTRATION USING SIMPLIFIED LIQUID EXTRACTION

#62
20200271633
2020-08-27

Methods for identifying carbon derived from natural sources

#63
20200266044
2020-08-20

Apparatus and method for generating chemical signatures using differential desorption

#64
20200225131
2020-07-16

Ultrasound-assisted solvent extraction of analytes from porous membrane packed solid samples

#65
20200191686
2020-06-18

VACUUM-ASSISTED SAMPLE EXTRACTION DEVICE AND METHOD

#66
20200135444
2020-04-30

Apparatus and method for rapid chemical analysis using differential desorption

#67
20200131533
2020-04-30

Methods for analysis of viral capsid protein composition

#68
20200049672
2020-02-13

Sample pretreatment method of microextraction tube injection

#69
20190277736
2019-09-12

Component extraction device

#70
20190257726
2019-08-22

Rapid Energized Dispersive Solid Phase Extraction (SPE) for Analytical Analysis

#71
20190252177
2019-08-15

Apparatus and method for generating chemical signatures using differential desorption

#72
20190250081
2019-08-15

Detection of organic halide compounds using close loop flow assisted electro-enhanced solid-phase microextraction

#73
20190250080
2019-08-15

Use of platinum wire electrode and synthetic fiber for flow assisted electro-enhanced solid phase microextraction

#74
20190195838
2019-06-27

Systems, methods and devices addressing sample extraction and injection problems in chromatography

#75
20190195758
2019-06-27

Solid phase extraction methods for enhanced removal of phospholipids from biological samples

#76
20190145876
2019-05-16

Process for microextraction and detection of an analyte

#77
20190137370
2019-05-09

Siloxane column based liquid phase microextraction and process

#78
20190091658
2019-03-28

Modified cotton fabric for solid-phase extraction and fabrication method

#79
20190079060
2019-03-14

Pretreatment method for analyzing dioxin compounds and analytical method using the same

#80
20190049415
2019-02-14

System and method for desorbing and detecting an analyte sorbed on a solid phase microextraction device

#81
20190011341
2019-01-10

Rapid sample preparation for analytical analysis using dispersive energized extraction

#82
20190011339
2019-01-10

Rapid energized dispersive solid phase extraction (SPE) for analytical analysis

#83
20190011337
2019-01-10

Rapid sample preparation for analytical analysis using dispersive energized extraction

#84
20190006166
2019-01-03

Apparatus and method for generating chemical signatures using differential desorption

#85
20190003936
2019-01-03

System and method for desorbing and detecting an analyte sorbed on a solid phase microextraction device

#86
20180356374
2018-12-13

Detection of a suspect counterfeit part by chromatography

#87
20180305736
2018-10-25

Method for extracting substance from feces sample

#88
20180266928
2018-09-20

Devices to facilitate sampling with thin film solid phase microextraction

#89
20180224403
2018-08-09

A New detection method of flavors and fragrances microcapsules release property

#90
20180172714
2018-06-21

Rapid and sensitive method of forensic toxicology in post-mortem subjects using oral fluid testing

#91
20180172646
2018-06-21

Microfabricated staged preconcentration and parallel column for gas chromatography

#92
20180158659
2018-06-07

Preparation and feed apparatus of standard sample for calibration of trace-analysis instrument

#93
20180156836
2018-06-07

Device for solid-phase microextraction

#94
20180136187
2018-05-17

Analysis system and method for detecting volatile organic compounds in liquid

#95
20180088094
2018-03-29

MULTIPLE ATTRIBUTE MONITORING METHODOLOGIES FOR COMPLEX SAMPLES

#96
20180071716
2018-03-15

Enrichment of lysophosphatidic acids with templated polymeric materials

#97
20170370887
2017-12-28

System and method for rapid analysis of polymer additives

#98
20170356886
2017-12-14

Device for taking and analyzing a gaseous sample

#99
20170303900
2017-10-26

Breath condensate and saliva analysis using oral rinse

#100
20170292939
2017-10-12

N-nitrosamine determination in aqueous samples with sonication and microextraction

#101
20170265375
2017-09-21

Method for producing germinated plant seeds, a method for producing germination induction raw material seeds, extract composition of germination processing plant seeds, and screening method

#102
20170261482
2017-09-14

Automated dispersive liquid-liquid microextraction technique for the analysis of N-nitrosamines in water

#103
20170261408
2017-09-14

Vacuum-assisted sample extraction device and method

#104
20170248500
2017-08-31

Determination of analytes in a sample matrix by solvent extraction

#105
20170184554
2017-06-29

Vacuum-assisted in-needle capplicary adsorption trap with multiwalled polyaniline/carbon nanotube nanocomposite sorbent

#106
20170059533
2017-03-02

Cooling-assisted inside needle capillary adsorption trap device for analyzing complex solid samples using nano-sorbent

#107
20170052153
2017-02-23

Method for detecting and quantifying haloether contamination in aqueous samples by flow assisted electro-enhanced solid-phase microextraction

#108
20170003205
2017-01-05

In-vial microextraction (IVME) systems and their method of making

#109
20160377512
2016-12-29

Cryofocused sampling of volatiles from air using peltier-assisted capillary microextraction

#110
20160282241
2016-09-29

Methods and systems for processing samples on porous substrates

#111
20160258910
2016-09-08

Standard analyte generator

#112
20160209304
2016-07-21

Sample preparation method for analysis of acrylamide

#113
20150369712
2015-12-24

Method for measuring or identifying a component of interest in a biological system

#114
20150318160
2015-11-05

Probe for extraction of molecules of interest from a sample

#115
20150318158
2015-11-05

Probe for extraction of molecules of interest from a sample

#116
20150276780
2015-10-01

Device for solid-phase microextraction

#117
20150266019
2015-09-24

Apparatus and method for analyte extraction

#118
20150260692
2015-09-17

Method and system for verifying the age of an animal providing meat

#119
20150198574
2015-07-16

Automated microextraction technique for the analysis of N-nitrosamines in water

#120
20150140673
2015-05-21

Sampling system and process for sampling

#121
20150129427
2015-05-14

Electroextraction

#122
20150047414
2015-02-19

Method for analyzing a cork stopper for the presence of 2,4,6-trichloroanisole and device for performing the same

#123
20140338432
2014-11-20

Methods of separating lipids

#124
20140311985
2014-10-23

Solid phase micro-extraction (SPME) devices

#125
20140260974
2014-09-18

Capillary microextractor of volatiles (CMV)

#126
20140208836
2014-07-31

Analysis of dried blood spot samples in a microfluidic system with dilution of extracted samples

#127
20140174160
2014-06-26

Microfluidic device with dried blood spots (Dbs) card interface

#128
20140157871
2014-06-12

System and method for rapid analysis of polymer additives

#129
20140147925
2014-05-29

Method for profiling phytohormone levels in plant tissue

#130
20140057361
2014-02-27

Headspace sampling device and method for sampling

#131
20140007652
2014-01-09

Method and system for verifying the age of an animal providing meat

#132
20130239665
2013-09-19

Method and device for automatically detecting substances for analyses

#133
20130220000
2013-08-29

Device and method for separation of proteins and other biomolecules

#134
20130061658
2013-03-14

Method for determining methanol content in crude oils

#135
20130015346
2013-01-17

Detection and Quanitation of Pain Medications in Oral Fluid Specimens

#136
20120228228
2012-09-13

Methods of Preparation and Manufacture of Biocompatible Solid-Phase Microextraction Coatings and Coated Devices

#137
20120181232
2012-07-19

Method of Preparation of Samples for Analysis and Cartridge Therefore

#138
20120164286
2012-06-28

Solid-phase microextraction coatings and methods for their preparation

#139
20120103068
2012-05-03

Head space sampling device and method for detecting leaks in same

#140
20110277563
2011-11-17

Devices for collecting chemical compounds

#141
20110271838
2011-11-10

Microtrap assembly for greenhouse gas and air pollution monitoring

#142
20110214487
2011-09-08

Electro-spun fibers and applications therefore

#143
20110198492
2011-08-18

Detection and Quantitation of Pain Medications in Oral Fluid Specimens

#144
20110195513
2011-08-11

Methods and kits for the determination of the presence and quantity of vitamin D analogs in samples

#145
20110129863
2011-06-02

Methods and systems for processing samples on porous substrates

#146
20110124513
2011-05-26

PROFILES OF VOLATILE HYDROCARBONS, MARKERS OF DEGRADATION/AGEING OF CELLULOSIC MATERIAL AND MARKERS OF PATHOLOGY

#147
20110118452
2011-05-19

Open channel solid phase extraction systems and methods

#148
20110104027
2011-05-05

Calibration procedures and devices for investigation biological systems

#149
20110067482
2011-03-24

Calibration procedures and devices for investigation biological systems

#150
20100267068
2010-10-21

ANALYSIS OF DOPING COMPOUNDS

#151
20100170852
2010-07-08

Method and Device for Gravity Flow Chromatography

#152
20100140173
2010-06-10

Method and Device for Gravity Flow Chromatography

#153
20100126255
2010-05-27

Device and method for separation of proteins and other biomolecules

#154
20100120167
2010-05-13

Micro scale flow through sorbent plate collection device

#155
20100034703
2010-02-11

MICRO SCALE FLOW THROUGH SORBENT PLATE COLLECTION DEVICE

#156
20100000342
2010-01-07

NEEDLE AND DEVICE FOR SOLID PHASE MICRO EXTRACTION

#157
20090260456
2009-10-22

Automatic solid-phase microextraction sampling apparatus

#158
20090223893
2009-09-10

Method and Device for Desalting an Analyte

#159
20090199621
2009-08-13

Enhanced sampling device

#160
20090113991
2009-05-07

Apparatus and method for measuring the concentration of organic gas

#161
20090107213
2009-04-30

Method for preparing sample for analysis of dioxins

#162
20090038374
2009-02-12

Method for detecting chemical substances in whole, closed and/or sealed containers

#163
20090026122
2009-01-29

BIOCOMPATIBLE SOLID-PHASE MICROEXTRACTION COATINGS AND METHODS FOR THEIR PREPARATION

#164
20080209983
2008-09-04

Method of analyzing organic chemical substances and apparatus for analysis

#165
20080206739
2008-08-28

Analysis Method for Pesticide Residues in Plant Samples

#166
20080193962
2008-08-14

Simple analysis method of drugs

#167
20080175929
2008-07-24

Analytical methods for identifying ginseng varieties

#168
20080064115
2008-03-13

Method for solid-phase micro extraction and apparatus therefor

#169
20070298505
2007-12-27

Method of Screening Crude Oil for Low Molecular Weight Naphthenic Acids

#170
20070248500
2007-10-25

INTERNALLY COOLED COATED FIBER DEVICE

#171
20070148782
2007-06-28

Calibration procedure for investigating biological systems

#172
20070113616
2007-05-24

Device for sample preparation

#173
20070102358
2007-05-10

Solid phase extraction column

#174
20060216206
2006-09-28

Solid phase extraction pipette

#175
20060210442
2006-09-21

Apparatus and method for analyzing nitropolycyclic aromatic hydrocarbon contained in diesel particulate

#176
20060163162
2006-07-27

Device for solid phase extraction and method for purifying samples prior to analysis

#177
20060118491
2006-06-08

Method and device for desalting an analyte

#178
20050287679
2005-12-29

Calibration procedure for investigating biological systems

#179
20050287037
2005-12-29

Preparation method for sample for analysis of dioxins and preparation apparatus for the same

#180
20050281710
2005-12-22

Low thermal mass multiple tube capillary sampling array

#181
20050276727
2005-12-15

Multiple sampling device and method for investigating biological systems

#182
20050258097
2005-11-24

Method and device for extracting an analyte

#183
20050226778
2005-10-13

Micro scale flow through sorbent plate collection device

#184
20050202563
2005-09-15

Continuous ion species removal device and method

#185
20050118666
2005-06-02

Method of assaying coenzymes a in biological sample

#186
20050118599
2005-06-02

Micro-devices and analytical procedures for investigation of biological systems

#187
20050106585
2005-05-19

Open channel solid phase extraction systems and methods

#188
20050095722
2005-05-05

Micro scale flow through sorbent plate collection device

#189
20050032237
2005-02-10

Method for solid-phase microextraction and analysis, and a collector for this method

#190
17336259
2024-07-02

Extractor for chemical analysis of lipid biomarkers

#191
17124596
2024-05-07

Methods of detecting predators in algal cultures

#192
15845229
2018-07-17

Method for simultaneously detecting four isomers of resveratrol in peanut