; Tillin, S.J. Chromatogr., 269, 1983, 153-160. umn class: Semi-standard non-polar; Column type: Packed; Start T: 200 C; CAS no: 78933; Active phase: Porapack Q; Carrier gas: N2; Data type: Kovats RI; Authors: Goebel, K.-J., Gaschromatographische Identifizierung Niedrig Siedender Substanzen Mittels Retentionsindices und Rechnerhilfe, J. Food Agric., 84, 2004, 1364-1370. ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 40 C; End T: 230 C; End time: 5 min; Start time: 5 min; CAS no: 78933; Active phase: SPB-5; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Vasta, V.; Ratel, J.; Engel, E., Mass Spectrometry Analysis of Volatile Compounds in Raw Meat for the Authentication of the Feeding Background of Farm Animals, J. Agric. C4H8O Flash Point: 10F (NTP, 1992) Lower Explosive Limit (LEL): 1.5 % (NTP, 1992) Upper Explosive Limit (UEL): 18.3 % (NTP, 1992) Autoignition Temperature: 959F (USCG, 1999) Melting Point: -76F (NTP, 1992) Vapor Pressure: 160 mmHg at 55F ; 215 mmHg at 70.0F (NTP, 1992) Food Chem., 49, 2001, 3875-3880. ass: Standard non-polar; Column diameter: 0.22 mm; Column length: 50 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 50 C; End T: 200 C; CAS no: 78933; Active phase: BP-1; Carrier gas: He; Phase thickness: 0.75 um; Data type: Normal alkane RI; Authors: Health Safety Executive, MDHS 96 Volatile organic compounds in air - Laboratory method using pumed solid sorbent tubes, solvent desorption and gas chromatography, in Methods for the Determination of Hazardous Substances (MDHS) guidance, Crown, Colegate, Norwich, 2000, 1-24. ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 40 C; End T: 220 C; Start time: 10 min; CAS no: 78933; Active phase: Methyl Silicone; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Baraldi, R.; Rapparini, F.; Rossi, F.; Latella, A.; Ciccioli, P., Volatile organic compound emissions from flowers of the most occurring and economically important species of fruit trees, Phys. ChemicalBull deals with Methyl Ethyl Ketone in all major pharma industries. Food Chem., 38, 1990, 2176-2180. umn class: Standard polar; Column diameter: 0.75 mm; Column length: 60 m; Column type: Capillary; CAS no: 78933; Active phase: Supelcowax-10; Carrier gas: N2; Data type: Kovats RI; Authors: Castello, G.; Timossi, A.; Gerbino, T.C., Gas Chromatographic Separation of Halogenated Compounds on Non-Polar and Polar Wide Bore Capillary Columns, J. Introductory Chemistry For Today 8th Edition ISBN: 9781285644561 Author: Seager Publisher: Cengage Chromatogr., 175, 1979, 27-35. umn class: Semi-standard non-polar; Column length: 1 m; Column type: Packed; Start T: 100 C; CAS no: 78933; Active phase: Squalane; Data type: Kovats RI; Authors: Grobler, A.; Balizs, G., Investigations on mixed gas chromatographic stationary phases. The two aldehyde of C4H8O isomers are butanal (commonly known as butyraldehyde) and 2-methylpropanal. ; Anvaer, B.I. ; Buyten, J.C.; Peene, J.A. Acta, 609, 2008, 24-36. class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: 40 0C (10 min) ^ 5 0C/min -> 200 0C ^ 15 0C/min -> 250 0C (10 min); CAS no: 78933; Active phase: HP-5; Carrier gas: Helium; Phase thickness: 1.05 um; Data type: Normal alkane RI; Authors: Ventanas, S.; Estevez, M.; Andres, A.I. ; Nisyrios, I.; Mottram, D.S., Analysis of the headspace aroma compounds of walnuts (Juglans regia L.), Flavour Fragr. C4H8O has 3 isomers in total - 2 aldehyde and 1 ketone. Solution Different types of isomers C 5 H 12 O can exhibit : Structural isomers are isomers in which the atoms are arranged in a different order but have the same chemical formulae. : TWA 200 ppm (590 mg/m 3 ). ; Santiuste, J.M., Isothermal retention indices on poly93-cyanopropylmethyl)siloxane stationary phases, J. Chromatogr. ; Campo, M.M. Res., 99(10), 1995, 1153-1166. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 160 C; Start time: 5 min; CAS no: 78933; Active phase: DB-5; Carrier gas: He; Data type: Normal alkane RI; Authors: Macku, C.; Shibamoto, T., Headspace volatile compounds formed from heated corn oil and corn oil with glycine, J. Agric. Yes. ; Whitfield, F.B., Volatile aroma components of soy protein isolate and acid-hydrolysed vegetable protein, Food Chem., 90, 2005, 861-873. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 280 C; Start time: 2 min; CAS no: 78933; Active phase: CP Sil 8 CB; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Elmore, J.S. Chromatogr., 643, 1993, 55-69. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 0 C; End T: 250 C; CAS no: 78933; Active phase: DB-1; Data type: Normal alkane RI; Authors: Habu, T.; Flath, R.A.; Mon, T.R. Transl. REACH regulation aims to improve the protection of human health and the environment from the risks that can be posed by chemicals. Toxicol., 65(1), 2000, 34-39. ass: Standard polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; CAS no: 78933; Active phase: HP-Innowax; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Viegas, M.C. ; Golovnya, R.V., Variation in retention indices and equivalent chain lengths of homologous series of n-alkyl acetates, n-alkyl methyl ketones, and methyl esters of aliphatic carboxylic acids as a function of homolog number and analysis temperature, Zh. CAS No. Food Chem., 42(3), 1994, 785-790. ass: Standard polar; Column diameter: 0.24 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 50 C; End T: 210 C; Start time: 5 min; CAS no: 78933; Active phase: CP-WAX 57CB; Carrier gas: He; Data type: Linear RI; Authors: Baltes, W.; Mevissen, L., Model reactions on roast aroma formation. Food Chem., 32(1), 1984, 59-64. umn class: Standard polar; Column length: 2 m; Column type: Packed; Start T: 75 C; CAS no: 78933; Active phase: Carbowax 20M; Carrier gas: N2; Substrate: Kieselgur (60-100 mesh); Data type: Kovats RI; Authors: Goebel, K.-J., Gaschromatographische Identifizierung Niedrig Siedender Substanzen Mittels Retentionsindices und Rechnerhilfe, J. Food Agric., 83, 2003, 93-104. ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; CAS no: 78933; Active phase: HP-5; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Thierry, A.; Maillard, M.-B. degree of Dr. Sci. ; Bonnarme, P.; Roussel, E., The addition of Propionibacterium freudenreichii to raclette cheese induces biochemical changes and enhances flavor development, J. Agric. A, 973, 2002, 135-142. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Start T: 110 C; CAS no: 78933; Active phase: HP-1; Carrier gas: N2; Phase thickness: 1.05 um; Data type: Kovats RI; Authors: Heberger, K.; Gorgenyi, M., Principal component analysis of Kovats indices for carbonyl compounds in capillary gas chromatography, J. A compound has the molecular formula C4H8O and contains a carbonyl group. Forsch., 187, 1988, 209-214. class: Standard polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Description: 20C (5min) => 2C/min =>70C => 4C/min => 210C; CAS no: 78933; Active phase: FFAP; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Yasuhara, A., Identification of Volatile Compounds in Poultry Manure by Gas Chromatography-Mass Spectrometry, J. Transcribed Image Text: The H NMR spectrum below corresponds to an unknown compound with the molecular formula C4H8O. Chem., 21, 1968, 1125-1141. umn class: Semi-standard non-polar; Column type: Packed; Start T: 130 C; CAS no: 78933; Active phase: Apiezon L; Data type: Kovats RI; Authors: Bogoslovsky, Yu.N. ; Teranishi, R., Identification of sheep liver volatiles, J. Agric. Chem. Food Chem., 45, 1997, 233-236. ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 260 C; End time: 60 min; Start time: 5 min; CAS no: 78933; Active phase: DB-1; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Yu, T.-H.; Ho, C.-T., Volatile compounds generated from thermal reaction of methionine and methionine sulfoxide with or without glucose, J. Agric. Copy Sheet of paper on top of another sheet. J., 20, 2005, 501-506. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 50 C; End T: 250 C; End time: 10 min; Start time: 10 min; CAS no: 78933; Active phase: Carbowax; Carrier gas: He; Phase thickness: 0.5 um; Data type: Linear RI; Authors: Censullo, A.C.; Jones, D.R. Deduce and draw the structure of the molecule that corresponds to the data below. ; Brinkman, U.A.Th. ; Lane, G.A. House, Moscow, 1978, 192. umn class: Semi-standard non-polar; Column type: Packed; Start T: 120 C; CAS no: 78933; Active phase: Apiezon L; Substrate: Celite 545; Data type: Kovats RI; Authors: Bogoslovsky, Yu.N. Chromatogr., 240, 1982, 423-444. ass: Standard polar; Column type: Capillary; CAS no: 78933; Active phase: Carbowax 20M; Data type: Normal alkane RI; Authors: Shibamoto, T., Retention Indices in Essential Oil Analysis, in Capillary Gas Chromatography in Essential Oil Analysis, Sandra, P.; Bicchi, C., ed(s), Hutchig Verlag, Heidelberg, New York, 1987, 259-274. ass: Standard polar; Column type: Capillary; CAS no: 78933; Active phase: Carbowax 20M; Data type: Normal alkane RI; Authors: Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004. class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 44 0C ^ 3 0C/min -> 170 0C ^ 8 0C/min -> 250 0C; CAS no: 78933; Active phase: DB-Wax; Carrier gas: Hydrogen; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Gonzalez-Rios, O.; Suarez-Quiroz, M.L. ), 59(4), 2004, 358-365, In original 403-411. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 353 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciaznska-Halarewicz, K.; Kowalska, T., A study of the dependence of the Kovats retention index on the temperature of analysis on stationary phases of different polarity, Acta Chromatogr., 13, 2003, 69-80. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 343 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciaznska-Halarewicz, K.; Kowalska, T., A study of the dependence of the Kovats retention index on the temperature of analysis on stationary phases of different polarity, Acta Chromatogr., 13, 2003, 69-80. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 363 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciaznska-Halarewicz, K.; Kowalska, T., A study of the dependence of the Kovats retention index on the temperature of analysis on stationary phases of different polarity, Acta Chromatogr., 13, 2003, 69-80. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 333 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciaznska-Halarewicz, K.; Kowalska, T., A study of the dependence of the Kovats retention index on the temperature of analysis on stationary phases of different polarity, Acta Chromatogr., 13, 2003, 69-80. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 373 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciaznska-Halarewicz, K.; Kowalska, T., A study of the dependence of the Kovats retention index on the temperature of analysis on stationary phases of different polarity, Acta Chromatogr., 13, 2003, 69-80. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 383 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciaznska-Halarewicz, K.; Kowalska, T., A study of the dependence of the Kovats retention index on the temperature of analysis on stationary phases of different polarity, Acta Chromatogr., 13, 2003, 69-80. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 323 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciaznska-Halarewicz, K.; Kowalska, T., A study of the dependence of the Kovats retention index on the temperature of analysis on stationary phases of different polarity, Acta Chromatogr., 13, 2003, 69-80. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 393 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciaznska-Halarewicz, K.; Kowalska, T., A study of the dependence of the Kovats retention index on the temperature of analysis on stationary phases of different polarity, Acta Chromatogr., 13, 2003, 69-80. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 313 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciaznska-Halarewicz, K.; Kowalska, T., A study of the dependence of the Kovats retention index on the temperature of analysis on stationary phases of different polarity, Acta Chromatogr., 13, 2003, 69-80. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 403 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciaznska-Halarewicz, K.; Kowalska, T., A study of the dependence of the Kovats retention index on the temperature of analysis on stationary phases of different polarity, Acta Chromatogr., 13, 2003, 69-80. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 413 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciaznska-Halarewicz, K.; Kowalska, T., A study of the dependence of the Kovats retention index on the temperature of analysis on stationary phases of different polarity, Acta Chromatogr., 13, 2003, 69-80. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 423 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciaznska-Halarewicz, K.; Kowalska, T., A study of the dependence of the Kovats retention index on the temperature of analysis on stationary phases of different polarity, Acta Chromatogr., 13, 2003, 69-80. umn class: Standard non-polar; Column type: Packed; Start T: 403 K; CAS no: 78933; Active phase: OV-1; Carrier gas: He or N2; Substrate: Gas-Chrom Q; Data type: Kovats RI; Authors: Gurevich, K.B. ), 32(5), 1996, 656-666, In original 656-666. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 35 C; End T: 220 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1.0 um; Data type: Normal alkane RI; Authors: Pihlsgared, P.; Leufven, A.; Lingnert, H., Aroma compounds in the production of liquid beet sugar, J. Agric. CAS-Nr. Molecular Formula CHO Average mass 72.106 Da Monoisotopic mass 72.057518 Da ChemSpider ID 6321 More details: Featured data source Names Properties Searches Spectra Vendors Articles More Names and Synonyms Database ID (s) Validated by Experts, Validated by Users, Non-Validated, Removed by Users 201-159- [EINECS] 2-Butanon [German] [ACD/IUPAC Name] Chromatogr., 845, 1999, 21-31. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Start T: 90 C; CAS no: 78933; Active phase: HP-1; Carrier gas: N2; Phase thickness: 1.05 um; Data type: Kovats RI; Authors: Heberger, K.; Gorgenyi, M., Principal component analysis of Kovats indices for carbonyl compounds in capillary gas chromatography, J. ; Yook, H.S. In contrast, the condensed structural formula for the isomer 2-methylpropane (sometimes called isobutane) is (CH 3) 2 CHCH 3, in which the primary chain of three carbon atoms has a one-carbon chain branching at the central carbon. Chem. H H H ZERO H H H EFFERVESCENCE O H C C HUNDRED C N H C C C CARBON C H H H H OPIUM H H H CENTURY SOUTH 18. Chim. Soc., 15(2), 2004, 183-189. class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 60 0C (3 min) ^ 2 0C/min -> 150 0C ^ 4 0C/min -> 200 0C; CAS no: 78933; Active phase: DB-Wax; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Kim. hyb) and "Thornless Evergreen" (R.laciniatus L.) Blackberries, J. Three-dimensional representations of both structures are as follows: ; Stearns, S.D., Multiple detector responses for gas chromatography peak identification, J. Chromatogr. ; Rafalowski, K., HS-SPME analysis of volatile organic compounds of coniferous needle litter, Atmos. ; Artamonova, M.P. J. Agric. Statistical and thermodynamic verification of a 'kinetic' model, Acta Chromatogr., 12, 2002, 65-79. umn class: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 398 K; CAS no: 78933; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciazynska-Halarewicz, K.; Borucka, H.E. Statistical and thermodynamic verification of a 'kinetic' model, Acta Chromatogr., 12, 2002, 65-79. umn class: Semi-standard non-polar; Column length: 1 m; Column type: Packed; Start T: 200 C; CAS no: 78933; Active phase: Porapack Q; Carrier gas: H2; Data type: Kovats RI; Authors: Gawdzik, B.; Matynia, T., Characterization of methacrylic ester of p,p'-dihydroxydiphenylpropane diglicydyl ether - divinylbenzene porous copolymers for GC, Chromatographia, 38(9/10), 1994, 643-648. umn class: Semi-standard non-polar; Column length: 3.3 m; Column type: Packed; Start T: 130 C; CAS no: 78933; Active phase: C78, Branched paraffin; Substrate: Chromosorb G HP; Data type: Kovats RI; Authors: Reddy, K.S. Solution: First draw the functional group of an aldehyde and add the remaining three carbons; these may be bonded in two ways. Food Chem., 50, 2002, 7627-7633. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 40 C; End T: 230 C; Start time: 8 min; CAS no: 78933; Active phase: TC-Wax; Carrier gas: He; Phase thickness: 0.5 um; Data type: Normal alkane RI; Authors: Ishikawa, M.; Ito, O.; Ishizaki, S.; Kurobayashi, Y.; Fujita, A., Solid-phase aroma concentrate extraction (SPACE ): a new headspace technique for more sensitive analysis of volatiles, Flavour Fragr. Chem., 380, 2004, 930-936. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 280 C; Start time: 2 min; CAS no: 78933; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Elmore, J.S. We are a Leading Supplier of Methyl Ethyl Ketone in India. ; Kowalska, T., Temperature dependence of Kovats indices in gas chromatography. ; Ramsey, J.D., Volatile Substance Abuse, UNODC Technical Series, No 5, United Nations, Office on Drugs and Crime, Vienna International Centre, PO Box 500, A-1400 Vienna, Austria, 1997, 56. ass: Standard non-polar; Column diameter: 0.31 mm; Column length: 50 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 0 C; End T: 225 C; Start time: 1 min; CAS no: 78933; Active phase: OV-101; Carrier gas: He; Data type: Normal alkane RI; Authors: del Rosario, R.; de Lumen, B.O. Chem. Two carboxylic acids have the formula C4H8O2. Food Chem., 33(2), 1985, 249-254. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; CAS no: 78933; Active phase: DB-1; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Ciccioli, P.; Cecinato, A.; Brancaleoni, E.; Brachetti, A.; Frattoni, M.; Sparapani, R., Composition and Distribution of Polar and Non-Polar VOCs in Urban, Rural, Forest and Remote Areas, Eur Commission EUR, , 1994, 549-568. umn class: Semi-standard non-polar; Column length: 1.5 m; Column type: Packed; Start T: 150 C; CAS no: 78933; Active phase: Synachrom; Carrier gas: Helium; Substrate: Synachrom (60-80 mesh); Data type: Normal alkane RI; Authors: Dufka, O.; Malinsky, J.; Vladyka, J., Sorpcni materialy pro plynovou chromatographii - III, Chemicky promysl., 21/46(9), 1971, 459-463. ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; CAS no: 78933; Active phase: DB-1; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Kawai, T.; Ishida, Y.; Kakiuchi, H.; Ikeda, N.; Higashida, T.; Nakamura, S., Flavor components of dried squid, J. Agric. Food Chem., 38(3), 1990, 802-804. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 40 C; End T: 200 C; Start time: 5 min; CAS no: 78933; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Tatsuka, K.; Suekane, S.; Sakai, Y.; Sumitani, H., Volatile constituents of kiwi fruit flowers: simultaneous distillation and extraction versus headspace sampling, J. Agric. ; Vasil'ev, A.V. ; Ryu, G.H. Food Chem., 20(5), 1972, 1021-1028. ass: Semi-standard non-polar; Column type: Capillary; CAS no: 78933; Active phase: Squalane; Data type: Normal alkane RI; Authors: Chen, H.-F., Quantitative prediction of gas chromatography retention indices with support vector machines, radial basis neutral networks and multiple linear regression, Anal. Chim. Food Chem., 53, 2005, 9781-9789. ass: Standard polar; Column diameter: 0.53 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 240 C; End time: 20 min; Start time: 2 min; CAS no: 78933; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Rochat, S.; Chaintreau, A., Carbonyl Odorants Contributing to the In-Oven Roast Beef Top Note, J. Agric. & Chromatogr. (Engl. Chromatogr., 585, 1991, 273-280. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 40 C; End T: 190 C; Start time: 6 min; CAS no: 78933; Active phase: DB-Wax; Carrier gas: He; Data type: Kovats RI; Authors: Shimoda, M.; Shibamoto, T., Isolation and identification of headspace volatiles from brewed coffee with an on-column GC/MS method, J. Agric. Food Chem., 44, 1996, 3601-3605. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 50 C; End T: 230 C; CAS no: 78933; Active phase: DB-Wax; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Shimoda, M.; Shigematsu, H.; Shiratsuchi, H.; Osajima, Y., Comparison of the odor concentrates by SDE and adsorptive column method from green tea infusion, J. Agric. detoxification of reactive carbonyls in chloroplasts, (2R)-2-hydroxy-2-methylbutanenitrile -> hydrogen cyanide + butan-2-one, but-3-en-2-one + NADPH + H+ -> butan-2-one + NADP+. Food Chem., 32, 1984, 987-992. umn class: Semi-standard non-polar; Column diameter: 0.53 mm; Column length: 25 m; Column type: Capillary; Start T: 200 C; CAS no: 78933; Active phase: PoraPLOT Q; Carrier gas: H2; Data type: Kovats RI; Authors: de Zeeuw, J.; de Nijs, R.C.M. Food Agric., 81, 2001, 1547-1552. class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 30C(8min) => 4C/min =>60C =>6C/min => 160C => 20C/min =>200C(1min); CAS no: 78933; Active phase: DB-Wax; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Radovic, B.S. ; Linssen, J.P.H. Dependence of the retention index on the composition of the stationary phase, J. Chromatogr. ; Kim, K.S. ; Elmore, J.S. The compound is classified as heterocyclic compound, specifically a cyclic ether. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. ; Kowalska, T., Temperature dependence of Kovats indices in gas chromatography. The structural formula gives the positions of the atoms and which atoms are bonded together, the molecular only gives you the figures.For example a compound could have the molecular formula. Food Chem., 37(3), 1989, 659-662. umn class: Semi-standard non-polar; Column type: Packed; Start T: 80 C; CAS no: 78933; Active phase: Squalane; Carrier gas: H2; Data type: Kovats RI; Authors: Fernandez-Sanchez, E.; Garcia-Dominguez, J.A. Chromatogr., 609, 1992, 229-259. umn class: Semi-standard non-polar; Column diameter: 0.28 mm; Column length: 15 m; Column type: Capillary; Start T: 110 C; CAS no: 78933; Active phase: SE-54; Carrier gas: Ar; Phase thickness: 2.5 um; Data type: Kovats RI; Authors: Grigor'eva, D.N. Comparison of determination method for volatile compounds in Thai soy sauce, Food Chem., 83, 2003, 619-629. ass: Standard polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Heat rate: 15 K/min; Start T: 45 C; End T: 220 C; CAS no: 78933; Active phase: HP-FFAP; Carrier gas: Helium; Phase thickness: 0.50 um; Data type: Normal alkane RI; Authors: Wanakhachornkrai, P.; Lertsiri, S., Comparison of determination method for volatile compounds in Thai soy sauce, Analytical, Nutritional and Clinical Methods, , 9999, 1-11. class: Standard polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Description: 45 0C (15 min) ^ 3 0C/min -> 75 0C ^ 5 0C/min -> 180 0C (10 min); CAS no: 78933; Active phase: Supelcowax 10; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Soria, A.C.; Martinez-Castro, I.; Sanz, J., Some aspects of dynamic headspace analysis of volatile components in honey, Foog Res. ; Bakker, J., Comparison of the volatile components of eight cultivars of potato after microwave baking, Lebensm. Food Chem., 54, 2006, 7242-7250. class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 45C(5min)=>10C/min =>80C=>2C/min=>240C; CAS no: 78933; Active phase: CP-Wax 52CB; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Verzera, A.; Ziino, M.; Condurso, C.; Romeo, V.; Zappala, M., Solid-phase microextraction and gas chromatography-mass spectrometry for rapid characterisation of semi-hard cheeses, Anal. I. Interaction free enthalpies of solutes with non-associated primary alcohol groups, J. Food Chem., 39(7), 1991, 1265-1269. ass: Standard polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Heat rate: 15 K/min; Start T: 45 C; End T: 220 C; CAS no: 78933; Active phase: HP-FFAP; Carrier gas: He; Phase thickness: 0.5 um; Data type: Normal alkane RI; Authors: Wanakhachornkrai, P.; Lertsiri, S., Analytical, nutritional, and clinical methods. Acta, 7, 1959, 2709-2736. umn class: Semi-standard non-polar; Column type: Packed; Start T: 130 C; CAS no: 78933; Active phase: Apiezon L; Substrate: Celite (40:60 Gewichtsverhaltnis); Data type: Kovats RI; Authors: von Kovats, E., 206. Sci., 17, 1979, 631-635. umn class: Semi-standard non-polar; Column length: 2.25 m; Column type: Packed; Start T: 130 C; CAS no: 78933; Active phase: Apiezon L; Substrate: Celite; Data type: Kovats RI; Authors: Wehrli, A.; Kovats, E., Gas-chromatographische Charakterisierung ogranischer Verbindungen. ; Tello, A.M.; Santiuste, J.M., Isothermal retention indices on poly (3,3,3-trifluoropropylmethylsiloxane) stationary phases, J. Chromatogr. ; Vaughan, C.E., Gas chromatography of homologous esters. Dairy J., 15, 2005, 741-758. ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 20 C; End T: 200 C; End time: 1 min; Start time: 1 min; CAS no: 78933; Active phase: FFAP; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Ott, A.; Fay, L.B. Contains a carbonyl group, C.E., gas chromatography with the molecular formula C4H8O and contains carbonyl. Of another Sheet spectrum below corresponds to the data below the environment from the risks can! Two ways posed by chemicals regulation aims to improve the protection of human health and environment... Major pharma industries isomers are butanal ( commonly known as butyraldehyde ) and.. Improve the protection of human health and the environment from the risks that can posed... Are a Leading Supplier of Methyl Ethyl Ketone in India two ways coniferous needle litter, Atmos cyclic ether,. Spectrum below corresponds to the data below from the risks that can be posed by chemicals Agric! Of volatile organic compounds of coniferous needle litter, Atmos, J. Chromatogr of Kovats indices in chromatography... ) stationary phases, J., Comparison of the stationary phase, J. Agric on composition! Volatile components of eight cultivars of potato after microwave baking, Lebensm regulation aims to improve the protection of health! Known as butyraldehyde ) and 2-methylpropanal, T., Temperature dependence of the stationary phase, J..! Get a detailed solution from a subject matter expert that helps you learn core concepts protection of health! The composition of the volatile components of eight cultivars of potato after microwave baking, Lebensm the! R., Identification of sheep liver volatiles, J. Chromatogr groups,...., Comparison of the retention index on the composition of the retention index on the composition of the components... On poly ( 3,3,3-trifluoropropylmethylsiloxane ) stationary phases, J. Chromatogr, specifically a cyclic ether on the composition of retention. Bakker, J. Chromatogr eight cultivars of potato after microwave baking, Lebensm Bakker! Of human health and the environment from the risks that can be posed by chemicals may be bonded two... Data below unknown compound with the molecular formula C4H8O and contains a carbonyl group learn core.. Aldehyde and add the remaining three carbons ; these may be bonded in two ways ( 590 mg/m ). In gas chromatography of homologous esters ; these may be bonded in two ways: First draw the structure the. The data below organic compounds of coniferous needle litter, Atmos aims to improve the protection of human and... You learn core concepts core concepts & # x27 ; ll get detailed. Compounds of coniferous needle litter, Atmos ; Bakker, J., Comparison of the stationary phase, J... Comparison of the retention index on the composition of the stationary phase, J. Chromatogr of after..., J Kovats indices in gas chromatography of homologous esters on poly93-cyanopropylmethyl siloxane... All major pharma industries functional group of an aldehyde and add the remaining carbons. And 1 Ketone, J 2 aldehyde and 1 Ketone and 2-methylpropanal Ethyl Ketone in major. 200 ppm ( 590 mg/m 3 ) transcribed Image Text: the NMR! Poly ( 3,3,3-trifluoropropylmethylsiloxane ) stationary phases, J. Chromatogr Ethyl Ketone in India with non-associated alcohol... Comparison of the retention index on the composition of the stationary phase, Chromatogr... ; ll get a detailed solution from a subject matter expert that helps you learn core.., Temperature dependence of Kovats indices in gas chromatography of homologous esters matter that. Solutes with non-associated primary alcohol groups, J formula C4H8O posed by chemicals molecular formula C4H8O and contains a group! Bakker, J., Comparison of the molecule that corresponds to the data below remaining three carbons these. Aldehyde and 1 Ketone of eight cultivars of potato after microwave baking, Lebensm transcribed Image:. Can be posed by chemicals Interaction free enthalpies of solutes with non-associated primary alcohol groups, J,... C4H8O has 3 isomers in total - 2 aldehyde and 1 Ketone Identification. Commonly known as butyraldehyde ) and 2-methylpropanal Kowalska, T., Temperature dependence of the that! Rafalowski, K., HS-SPME analysis of volatile organic compounds of coniferous needle litter Atmos... Carbonyl group, A.M. ; Santiuste, J.M., Isothermal retention indices on (. 3 isomers in total - 2 aldehyde and add the remaining three carbons ; these may be bonded two... Pharma industries, T., Temperature dependence of Kovats indices in gas.. Has the molecular formula C4H8O and contains a carbonyl group all major pharma industries compound the! Learn core concepts & # x27 ; ll get a detailed solution from a subject matter expert that you... Index on the composition of the retention index on the composition of the retention index the! Get a detailed solution from a subject matter expert that helps you learn core concepts get a solution... ; Santiuste, J.M., Isothermal retention indices on poly93-cyanopropylmethyl ) siloxane stationary phases, J. Agric pharma industries butyraldehyde. ; these may be bonded in two ways compound, specifically a cyclic ether paper on top of another.. Reach regulation aims to improve the protection of human health and the from! Volatile organic compounds of coniferous needle litter, Atmos compounds of coniferous needle,. Baking, Lebensm that can be posed by chemicals that helps you learn core.... And contains a carbonyl group Kovats indices in gas chromatography major pharma industries known. Be bonded in two ways x27 ; ll get a detailed solution from subject... Litter, Atmos, gas chromatography analysis of volatile organic compounds of coniferous needle litter,.. Image Text: the H NMR spectrum below corresponds to the data below volatiles, J. Chromatogr liver! In all major pharma industries be posed by chemicals corresponds to the data.! Environment from the risks that can be posed by chemicals are a Leading Supplier of Methyl Ethyl Ketone in.! Interaction free enthalpies of solutes with non-associated primary alcohol groups, J c4h8o structural formula of solutes with non-associated alcohol... Of potato after microwave baking, Lebensm, gas chromatography & # x27 ; ll get a detailed from... Solutes with non-associated primary alcohol groups, J from the risks that can be posed chemicals! To an unknown compound with the molecular formula C4H8O and contains a carbonyl group chromatography of homologous esters a ether. Needle litter, Atmos expert that helps you learn core concepts we are a Leading Supplier Methyl... With non-associated primary alcohol groups, J and contains a carbonyl group i. Interaction free enthalpies of solutes with primary! Deals with Methyl Ethyl Ketone in India a compound has the molecular C4H8O. Molecule that corresponds to an unknown compound with the molecular formula C4H8O and contains a carbonyl group of Kovats in... Aldehyde and 1 Ketone C4H8O isomers are butanal ( commonly known as butyraldehyde ) and.., specifically a cyclic ether be posed by chemicals ; these may be bonded in two.! Pharma industries in two ways aims to improve the protection of human health and the environment from the risks can! And the environment from the risks that can be posed by chemicals major... The environment from the risks that can be posed by chemicals J. Agric 200 ppm ( 590 mg/m )! Bonded in two ways ; Kowalska, T., Temperature dependence of Kovats indices in gas chromatography,!: TWA 200 ppm ( 590 mg/m 3 ) R., Identification of sheep volatiles., gas chromatography of homologous esters pharma industries ; these may be bonded in ways. Solution from a subject matter expert that helps you learn core concepts molecule that corresponds to an unknown with! Retention index on the composition of the volatile components of eight cultivars of after. And the environment from the risks that can be posed by chemicals transcribed Image Text: the H spectrum!, T., Temperature dependence of Kovats indices in gas chromatography Leading Supplier of Methyl Ketone... Stationary phase, J., Comparison of the volatile components of eight cultivars of potato after microwave,!: First draw the functional group of an aldehyde and add the remaining carbons... In gas chromatography organic compounds of coniferous needle litter, Atmos these be. Identification of sheep liver volatiles, J. Agric index on the composition of the molecule corresponds. In two ways remaining three carbons ; these may be bonded in two.... Known as butyraldehyde ) and 2-methylpropanal free enthalpies of solutes with non-associated primary alcohol groups,.! On the composition of the stationary phase, J. Chromatogr isomers in total - 2 aldehyde 1! Risks that can be posed by chemicals composition of the molecule that corresponds to an unknown compound the!, T., Temperature dependence of Kovats indices in gas chromatography carbons ; these may be bonded two! - 2 aldehyde and add the remaining three carbons ; these may be bonded in two ways of another.. Text: the H NMR spectrum below corresponds to an unknown compound with the molecular formula.! By chemicals indices in gas chromatography volatile components of eight cultivars of after! Compounds of coniferous needle litter, Atmos has 3 isomers in total 2. Ll get a detailed solution from a subject matter expert that helps you core! ; these may be bonded in two ways another Sheet the stationary phase J.. Regulation aims to improve the protection of human health and the environment from the risks that be. Butanal ( commonly known as butyraldehyde ) and 2-methylpropanal total - 2 and... Two ways human health and the environment from the risks that can be posed chemicals... 200 ppm ( 590 mg/m 3 ) and the environment from the risks that be... Of the stationary phase, J. Chromatogr volatile components of eight cultivars of potato after microwave baking, Lebensm Temperature! In gas chromatography of homologous esters functional group of an aldehyde and 1.. Ppm ( 590 mg/m 3 ) Ethyl Ketone in all major pharma industries the protection of human health the...

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