Quantitative Methods by Gas Chromatography
Quantitative Methods by Gas Chromatography, Total:200 items.
The international standard classification for "Quantitative Methods by Gas Chromatography" includes: Sugar and sugar products , Biology. Botany. Zoology , Gases for industrial application , Chemical analysis , Aromatic hydrocarbons , food products in general , Ambient atmospheres , Workplace atmospheres , Protection against crime , Organic nitrogen compounds , Gaseous fuels , Pesticides and other agrochemicals , Phenols , Other standards related to analytical chemistry , Petroleum products in general , Cadmium, cobalt and their alloys , Cereals, pulses and derived products , Protection against fire in general , Products of the chemical industry , Organic chemicals in general , Organic chemicals , Alcohols. Ethers , General methods of tests and analysis for food products , Vegetables and derived products , Farming and forestry , Fuels .
The Chinese standard classification for "Quantitative Methods by Gas Chromatography" includes: Sugar refining , Industrial gas and chemical gas , Coal tar processed products , Basic standards and general methods , Analysis methods for toxic substances in atmosphere , Labor sanitation , Crime judging technology , Organic chemicals in general , Heat supply, air supply, air conditioning and refrigerating engineering in general , Basic standards and general methods for pesticides , General organic chemicals , Petroleum products in general , Rare metals and their alloys analysis method , Food sanitation , Fire protection technology , Forestry chemical raw material , Meat processing and products , Tooth paste, soap and detergent , Insulating oil , Basic standards and general methods , Pesticide management and application method , Basic standards and general methods , Diagnostic standard for occupational diseases , Legal medical expert , Hydrogeological survey , Fuel oil .
Professional Standard - Customs
- HS/T 23-2009 Determination of naphthalene content.gas chromatography
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 38095-2019 Determination of docosahexaenoic acid and eicosapentaenoic acid content-Gas chromatography
- GB/T 24199-2009 Refined pyridine—Determination of pyridine content—Gas chromatographic method
- GB/T 19649-2005 Method for determination of 405 pesticides residues in grains―GC-MS and LC-MS-MS method
- GB/T 2601-1981 Products from phenols--Determination of composition--Gas chromatography
- GB/T 16110-1995 Workplace air--Determination of phosphorus--Gas chromatographic method
- GB/T 40500-2021 Determination of total aromatics composition in aviation fuels—Gas chromatography
- GB/T 46325-2025 Determination of Free Sulfur Content in Vulcanized Rubber - Gas Chromatography (GC) and High Performance Liquid Chromatography (HPLC)
- GB/T 23961-2009 Determination of low carbon aliaphatic amines—Gas chromatographic method
- GB/T 8981-1988 Determination of trace hydrogen in gases--Gas chromatographic method
- GB/T 16118-1995 Workplace air--Determination of rogor--Gas chromatographic method
- GB/T 31749-2015 Method for the determination of active content of molinate emulsifiable concentrate―Gas chromatography(GC)
- GB/T 2601-2008 The chromatographic method for determination of content of hydroxybenzene
- GB/T 17064-1997 Workplace air--Determination of methyl mercaptan--Gas chromafography method
- GB/T 18294.5-2010 Technical identification methods for fire—Part 5:Gas chromatography-mass spectrometry analysis
- GB/T 12209.2-1990 Determination of naphthalene of gas in urban area--Gas chromatographic method
- GB/T 14605-1993 Determination of trace argon, nitrogen and krypton in oxygen-Gas chromatographic method
- GB/T 23961-2023 Determination of low carbon aliphatic amines—Gas chromatographic method
- GB/T 17068-1997 Workplace air--Determination of formic acid--Gas chromatographic method
- GB/T 17069-1997 Workplace air--Determination of propionic acid--Gas chromatographic method
- GB/T 8981-2008 Determination of trace hydrogen in gases - Gas chromatographic method
- GB/T 2604-1981 o-Cresol--Determination of composition--Gas chromatography
- GB/T 5009.204-2005 GC-MS method for determination of acrylamide in food
- GB/T 17070-1997 Workplace air--Determination of benzyl chloride--Gas chromatographic method
- GB/T 16092-1995 Workplace air--Determination of DDT--Gas chromatographic method
- GB/T 29635-2013 GC and GC-MS examination methods for heroin in suspected drug
- GB/T 17474-1998 Standard test method for benzene in hydrocarbon solvents by gas chromatography
- GB/T 18932.20-2003 Method for the determination of chloramphenicol residues in honey - GC-MS method
- GB/T 16093-1995 Workplace air--Determination of hexachlorobenzene--Gas chromatographic method
- GB/T 17071-1997 Workplace air--Determination of benzyl cyanide--Gas chromatographic method
- GB/T 8639.7-1988 Vanadium--Determination of oxygen content--Impulse fusion-gas chromatographic method
- GB/T 14676-1993 Air quality -Determination of trimethylamine -Gas chromatography
- GB/T 29637-2013 GC and GC-MS examination methods for ketamine in suspected drug
- GB/T 14670-1993 Air quality-Determination of styrene-Gas chromatography
Professional Standard - Ferrous Metallurgy
- YB/T 4496-2015 Coke oven gas. Determination of the hydrogen sulfide content. Gas chromatography
- YB/T 6051-2022 Coke oven gas--Determination of benzene content-Gas chromatography
- YB/T 4929-2021 Coke oven gas-Determination of the naphthalene content- Gas chromatography
- YB/T 4990-2022 Coking light oil--Determination of the phenol content--Gas chromatography
- YB/T 5099-1993 Refined pyridine-Determination of pyridine content—Gas chromatographic method
- YB/T 5078-2001 Method of determination by gas chromatography for naphthalene content in coal tar
- YB/T 5078-2010 Testing of coal tar - Determination of the naphthalene content - Gas chromatography
Shandong Provincial Standard of the People's Republic of China
- DB37/T 1955-2011 Determination of Pyridaben Residues in Vegetables by Gas Chromatography-Mass Spectrometry
- DB37/T 3867-2020 Method for Determination of HC6 Active Component Content by Gas Chromatography
- DB37/T 3868-2020 Method for Determination of Active Component Content of Dibromochloropropane Gas Chromatography
Professional Standard - Commodity Inspection
- SN/T 1251-2003 Test method of furfural alcohol purity-Gas chromatography
- SN/T 1111-2002 Determination of glycerine content - Capillary gas chromatography
- SN/T 5348-2021 Determination of contents in industrial nonyl alcohol - Gas chromatography
- SN/T 0590-2013 Determination of 2,4-D butyl ester residues in meat and meat products for export―GC and GC-MS method
- SN/T 5028-2017 Determination of methylal content in gasoline - GC-MS
- SN/T 2234-2008 Determination of profenofos residue in food for import and export—GC and GC-MS method
- SN/T 1947-2007 Determination of fluroxypyr residues in foods for import and export-GC-MS method
- SN/T 2492-2010 Determination of molecular weight of liquefied petroleum gas—Gas chromatography
- SN/T 2463-2010 Method for the determination of polychlorinated biphenyls (PCBs) in textiles—GC method
- SN/T 0148-2011 Determination of Organophosphorus Residues in Fruits and Vegetables for Import and Export - GC-FPD and GC-MS Methods
- SN/T 1859-2007 Determination of patulin and 5 - Hydroxymethylfurfural in beverage-LC-MS and GC-MS method
- SN/T 5112-2019 Determination of propylene glycol in edibe animals and feeds for import and export - GC Method and GC-MS method
- SN/T 0596-2012 Determination of sethoxydim residue in cereals and oilbean for exports. GC/MS
- SN/T 5878-2025 Determination of Benomyl Residues in Animal-derived Food for Export by Gas Chromatography and Gas Chromatography-Mass Spectrometry/Mass Spectrometry
- SN/T 0654-2019 Determination of captan residues in fruits for Export GC and GC-MS/MS method
- SN/T 0591-2016 Determination of dioxathion residues in cerals and oil seeds for export-GC and GC-MS method
- SN/T 4451-2016 Determination of migration of N -Nitrosamines in child feeding nipples-GC-MS
- SN/T 4439-2016 Determination of boiling point distribution of crude oils - High temperature gas chromatography method
- SN/T 1945-2007 Determination of trans fatty acids in foods - Capillary gas chromatography
- SN/T 1971-2007 Determination of indoxacarb residues in food for import and export-GC and LC-MS/MS methods
- SN/T 4777-2017 Determination of anthraquinone residues in tea for export—GC-MS/MS method
Professional Standard - Energy and Power Planning
- DL/T 703-2015 Determination of Dissolved Gas Content in Insulating Oil by Gas Chromatograhy
- DL/T 703-1999 Determination of dissolved gas content in insulating oil by gas chromatography
Group Standards of the People's Republic of China
- T/CQAAS 008-2023 Determination of aroma component content of Zanthoxylum bungeanum - gas chromatography mass spectrometry
- T/CSTM 00638-2022 Determination of aromatic hydrocarbon content in coatings— Gas chromatography-mass spectrometry method
- T/TGIC 006-2024 Hydrogen water-Determination of hydrogen content - Gas chromatography
- T/HCAA 003-2019 Determination of aniline in soil by gas chromatography-mass spectrometry
- T/NAIA 014-2020 Determination of Moisture Content in Methanol by Gas Chromatography
- T/AHFIA 068-2022 Determination of Formaldehyde in baijiu Gas Chromatography
Professional Standard - Agriculture
- 205药典 三部-2020 Chromatography 0521 Gas Chromatography
- NY/T 3277-2018 Determination of 88 pesticides and their metabolites residues in water— Liquid chromatography-tandem mass spectrometry and gas chromatography-tandem mass spectrometry
- 66药典 四部-2020 0521 Gas chromatography
- NY/T 1379-2007 Multi-residue Determination of 334 Pesticides in Vegetable by GC/MS and LC/MS
- NY/T 3111-2017 Determination of sterols in vegetable oils- Gas chromatography mass spectrometry
- 159药典 三部-2010 Appendix III Chromatography IIIC Gas Chromatography
- 85药典 四部-2015 0521 Gas chromatography
- 186药典 三部-2015 Chromatography 0521 General Principles of Gas Chromatography 27
Professional Standard - Hygiene
- WS/T 62-1996 Urine - Determination of methanol - Headspace - Gas chromatographic method
- WS/T 175-1999 Exhaled air —Determination of acetone—Gas chromatographic method
- WS/T 41-1996 Exhaled air - Determination of carbon disulfide - Gas chromatographic method
- WS/T 51-1996 Exhaled air.Determination of benzene.Gas chromatographic method
- WS/T 50-1996 Urine—Determination of phenol—Gas chromatographic method-Ⅱ—FFAP column
Professional Standard - Judicatory
- SF/T 0113-2021 Determination of cyanide in blood by gas chromatography-mass spectrometry and gas chromatography
Military Standard of the People's Republic of China-General Armament Department
- GJB 3667A-2021 Soman determination gas chromatography
- GJB 4779-1997*GJBz 20413.1-1997 Determination of Sies by gas chromatography
- GJB 3665A-2021 Determination of sarin by gas chromatography
- GJB 3667-1999 Soman determination gas chromatography
- GJB 3665-1999 Determination of sarin by gas chromatography
- GJB 772.402-1989 Test methods for explosives - Determination of moisture by gas chromatography
Zhejiang Provincial Standard of the People's Republic of China
- DB33/T 542-2005 Determination of chloramphenicol residues in aquatic products by gas chromatography-secondary mass spectrometry
Professional Standard - Geology
- DZ/T 0064.74-1993 Groundwater quality test methods - the determination of gas with gas chromatography
- DZ/T 0064.72-1993 Groundwater quality test methods - the determination of organophosphorus residual quantity with gas chromatography
Guangxi Provincial Standard of the People's Republic of China
- DB45/T 1245-2015 Determination of Methylal Content in Gasoline by Gas Chromatography-Mass Spectrometry
Professional Standard - Supply and Marketing Cooperative
- GH/T 1106-2015 Determination of glycerol in honey――GC-MS method
Professional Standard - Electron
- SJ 3237-1989 Method for determination of trace oxygen in electronic grade Argon--Argon ionization gas chromatography method
- SJ 3238-1989 Method for determination of trace Nitrogen in electronic grade Argon--Argon ionization gas chromatography method
Professional Standard - Public Safety Standards
- GA/T 1327-2016 GC, GC-MS and LC-MS/MS examination methods for zolpidem in biological samples in forensic science
- GA/T 1008.2-2013 GC and GC-MS examination methods for drugs—Part 2:Morphine
Hebei Provincial Standard of the People's Republic of China
- DB13/T 5295-2020 Determination of Trace Components in High Purity Deuterium Gas Chromatography
Professional Standard - Petrochemical Industry
- SH/T 0693-2000 Standard test method for determination of benzene,toluene,ethylbenzene,p/m-xylene,o-xylene,C9 and heavier aromatics,and total aromatics in finished gasoline by gas chromatography
Anhui Provincial Standard of the People's Republic of China
- DB34/T 2823-2017 Qualitative identification method of paraffin in fungi products by gas chromatography-mass spectrometry
Professional Standard - Non-ferrous Metal
- YS/T 987-2021 Determination of carbon content in chlorosilanes by gas chromatography mass spectrometry
- YS/T 1392-2020 Determination of thecontent of chlorosilane components - Gas chromatographic method
- YS/T 540.7-2006 Vanadium -- Determination of oxygen content -- Impulse fusion-gas chromatographic method
Guangdong Provincial Standard of the People's Republic of China
- DB44/T 2539-2024 Qualitative testing methods for 44 drugs using gas chromatography-mass spectrometry
National Health Commission of the People's Republic of China
- GB 23200.59-2016 National food safety standard―Determination of dichlobenil residue in foods Gas chromatography-mass spectrometry
- GB 23200.48-2016 National food safety standard―Determination of difenzoquat residue in foods Gas chromatography-mass spectrometry
- GB 23200.47-2016 National food safety standard―Determination of clofentezine residue in foods Gas chromatography-mass spectrometry
- GB 23200.32-2016 National food safety standard―Determination of daminozide residue in foods Gas chromatography-mass spectrometry
- GBZ/T 286-2016 Gas chromatography-mass spectrometry method for determination of 1,2-dichloroethane in blood
- GB 23200.66-2016 National food safety standards-Determination of tebufenpyrad residue in foods Gas chromatography-mass spectrometry
- GB 23200.53-2016 National food safety standard―Determination of flusilazole residue in foods Gas chromatography-mass spectrometry
Jilin Provincial Standard of the People's Republic of China
- DB22/T 1612-2012 Determination of propanil residues in ginseng by gas chromatography
- DB22/T 2466-2016 Determination of Propiconazole Residues in Soil by Gas Chromatography-Mass Spectrometry
Agricultural Standard of the People's Republic of China
- 农业部781号公告-8-2006 The determination of Amitraz residues in honey GC/MS method
Professional Standard - Education
- JY/T 0574-2020 General rules of analytical methods for gas chromatography
Jiangsu Provincial Standard of the People's Republic of China
- DB32/T 2203-2012 Determination of DEET and repellent in repellants by liquid chromatography and gas chromatography
Professional Standard - Nuclear Industry
- EJ/T 20143-2016 Determination of equivalent water content in the fuel rod-gas chromatography
Sichuan Provincial Standard of the People's Republic of China
- DB51/T 1921-2014 Determination of Toluene Content in Nail Polish by Gas Chromatography
Chongqing Provincial Standard of the People's Republic of China
- DB50/T 679-2016 Determination of VOCS in exhaust gas from stationary pollution sources by gas chromatography-mass spectrometry
British Standards Institution (BSI)
- BS PD ISO/TS 19046-1:2017 Cheese. Determination of propionic acid level by chromatography-Method by gas chromatography
- BS DD 220:1994 Soil quality - Determination of mineral oil content - Method by infrared spectrometry and gas chromatographic method
- BS ISO 23168:2019 Paints and varnishes — Determination ofwater content — Gas - chromatographic method
- DD 220:1994(2000)*ISO TR 11046:1994 Soil quality — Determination of mineral oil content — Method by infrared spectrometry and gas chromatographic method
- BS DD ISO/TS 23647:2010 Vegetable fats and oils. Determination of wax content by gas chromatography
Yugoslav Association for Standardization
- JUS H.F8.231-1986 Gases. Determination of hydrocarbons content Gas chromatographic metbod
- JUS H.F8.132-1986 Gases. Determination of nitrogen content. Gas chromatographic method
- JUS H.F8.122-1986 Gases. Determination of oxygen content. Gas chromatographic method
- JUS H.F8.152-1986 Gases. Determination ofcarbon dioxid content. Gas chromatographic methctC/
- JUS H.G8.204-1985 Reagents. Methanol. Determination of methanol content. Gaschromatographic method
Universal Oil Products Company (UOP)
- UOP 759-1976 TRACE OXYGEN IN GASES BY GAS CHROMATOGRAPHY
- UOP 735-1973 Hydrogen Content of Gases by Gas Chromatography
Czech Standards Institute (UNMZ)
- CSN 66 1251-1985 Determination of n-butanol content by gas chromatography
- CSN 66 1240-1983 Determination of ethanol by gas chroma- tography
- CSN 65 6145-1967 Determination of the hydrocarbon ontent by gas chromatography
GCC Standardization Organization
- GSO ISO 19739:2014 Natural gas -- Determination of sulfur compounds using gas chromatography
- GSO ISO 13859:2015 Soil quality -- Determination of polycyclic aromatic hydrocarbons (PAH) by gas chromatography (GC) and high performance liquid chromatography (HPLC)
- GSO ISO 12078:2014 Anhydrous milk fat -- Determination of sterol composition by gas liquid chromatography (Reference method)
- GSO ISO/TS 28581:2013 Water quality -- Determination of selected non-polar substances -- Method using gas chromatography with mass spectrometric detection (GC-MS)
- GSO ISO/TS 23647:2015 Vegetable fats and oils -- Determination of wax content by gas chromatography
Spanish Association for Standardization (UNE)
- UNE 77307:2000 Soil quality. Determination of mineral oil content. Method by infrared spectrometry and gas chromatographic method.
- AENOR UNE 77307:2000 Soil quality. Determination of mineral oil content. Infrared spectrometry method and gas chromatography method.
European Committee for Standardization (CEN)
- EN ISO 23168:2020 Paints and varnishes - Determination of water content - Gas-chromatographic method (ISO 23168:2019)
Association Francaise de Normalisation
- XP ISO/TS 19046-1:2017 Cheeses - Determination of propionic acid content by chromatography - Part 1: gas chromatography method
- NF T30-317*NF EN ISO 23168:2020 Paints and varnishes - Determination of water content - Gas-chromatographic method
- NF EN ISO 23168:2020 Paints and varnishes - Determination of water content - Gas chromatography method
- XP V04-441-1*XP ISO/TS 19046-1:2017 Cheese - Determination of propionic acid level by chromatography - Part 1 : method by gas chromatography
- NF EN ISO 17495:2003 Water quality - Determination of selected nitrophenols - Solid phase extraction method with detection by gas chromatography and mass spectrometry
- NF M07-044:1986 Determination of benzene content in light hydrocarbon solvents - Gas chromatography method
International Organization for Standardization (ISO)
- ISO/TS 19046-1:2017 | IDF/RM 233-1:2017 Cheese — Determination of propionic acid level by chromatography — Part 1: Method by gas chromatography
- ISO 23168:2019 Paints and varnishes — Determination of water content — Gas-chromatographic method
- ISO 6977:1983 Natural gas; Determination of water and methanol contents; Gas chromatographic method
- ISO/TR 11046:1994 Soil quality - Determination of mineral oil content - Method by infrared spectrometry and gas chromatographic method
- ISO 19739:2004 Natural gas - Determination of sulfur compounds using gas chromatography
Polski Komitet Normalizacyjny (PKN)
- PKN-ISO/TS 19046-1-2021-07 P Cheese -- Determination of propionic acid level by chromatography -- Part 1: Method by gas chromatography
American Society for Testing and Materials (ASTM)
- ASTM RR-D16-1038 2009 D4735-Test Method for Determination of Trace Thiophene in Refined Benzene by Gas Chromatography
- ASTM UOP735-73 Hydrogen Content of Gases by Gas Chromatography
- ASTM D2804-98 Standard Test Method for Purity of Methyl Ethyl Ketone By Gas Chromatography
- ASTM D4735-09 Standard Test Method for Determination of Trace Thiophene in Refined Benzene by Gas Chromatography
- ASTM D5303-92(2002)e1 Standard Test Method for Trace Carbonyl Sulfide in Propylene by Gas Chromatography
- ASTM D4735-24 Standard Test Method for Determination of Trace Thiophene in Refined Benzene by Gas Chromatography
- ASTM D4534-99 Standard Test Method for Benzene Content of Cyclic Products by Gas Chromatography
- ASTM D7845-13 Standard Test Method for Determination of Chemical Species in Marine Fuel Oil by Multidimensional Gas Chromatography ndash; Mass Spectrometry
- ASTM D2580-06(2012) Standard Test Method for Phenols in Water by Gas-Liquid Chromatography
- ASTM D3329-03(2009) Standard Test Method for Purity of Methyl Isobutyl Ketone by Gas Chromatography
- ASTM D2360-00 Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography
- ASTM D4735-96(2000) Standard Test Method for Determination of Trace Thiophene in Refined Benzene by Gas Chromatography
- ASTM D2360-04a Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography
- ASTM D2360-04e1 Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography
- ASTM D2804-02 Standard Test Method for Purity of Methyl Ethyl Ketone By Gas Chromatography
GM North America
- GM GM9313P-1988 Residual Pentane Content by Gas Chromatography
Danish Standards Foundation
- DANSK DS/ISO 23168:2019 Paints and varnishes – Determination of water content – Gas-chromatographic method
- DANSK DS/ISO/TS 16780:2015 Water quality - Determination of polychlorinated naphthalenes (PCN) - Method using gas chromatography (GC) and mass spectrometry (MS)
Ente Nazionale Italiano di Unificazione
- UNI EN ISO 23168:2021 Paints and varnishes - Determination of water content - Gas-chromatographic method
- UNI EN ISO 3924:2010 Petroleum products - Determination of boiling range distribution - Gas chromatography method
COMMISSION FOR THE STANDARDS, METROLOGY AND QUALITY OF VIETNAM (STAMEQ)
- TCVN 3757-1983 Natural gases.Determination of hydrocarbon content by gas chromatography
- TCVN 3756-1983 Natural gas.Method for the determination of oxygen, nitrogen and methane by gas chromatography
Gosstandart of Russia
- GOST R 51973-2002 Cigarettes. Determination of water content in smoke condensate. Gas-chromatographic method
- GOST R 53911-2010 Vegetable oils. Determination of organochlorme pesticides using gas-liquid chromatography method
- GOST IEC 62321-8-2022 Determination of restricted substances in electrical products. Part 8. Determination of phthalates in polymers by gas chromatography mass spectrometry and pyrolytic gas chromatography mass spectrometry with thermal desorption..
- GOST 17567-1981 Gas chromatography. Terms and definitions
Society of Automotive Engineers (SAE)
- SAE J1151_198810 Methane Measurement Using Gas Chromatography
- SAE J1151_198806 Methane Measurement Using Gas Chromatography
- SAE J1151_198306 Methane Measurement Using Gas Chromatography
- SAE J1151_197608 Methane Measurement Using Gas Chromatography
- SAE J1151_199112 Methane Measurement Using Gas Chromatography
- SAE J1151_201109 Methane Measurement Using Gas Chromatography
- SAE J1151A_197907 Methane Measurement Using Gas Chromatography
German Institute for Standardization
- DIN EN ISO 23168 E:2020-08 Determination of water content in paints and varnishes by gas chromatography (draft)
Korean Agency for Technology and Standards (KATS)
- KS M ISO 11046-2006 Soil quality-Determination of mineral oil content-Method by infrared spectrometry and gas chromatographic method
- KS M 0027-1993 General Rules for Analytical Methods in Gas Chromatography Mass Spectrometry
- KS M 0027-2008(2023) General rules for analytical methods in gas chromatography mass spectrometry
- KS M 0027-2023 General rules for analytical methods in gas chromatography mass spectrometry
Kingdom of Bahrain Testing and Metrology Directorate
- BH GSO ISO/TS 23647:2017 Vegetable fats and oils -- Determination of wax content by gas chromatography
The Directorate General of Specifications and Metrology (DGSM)
- OS GSO ISO/TS 23647:2015 Vegetable fats and oils -- Determination of wax content by gas chromatography
Malaysia Standards
- MS 1013-1986 Test method for vinyl chloride monomer residue (gas chromatography)
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