Food Chem., 49, 2001, 1885-1894. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 10 K/min; Start T: -30 C; End T: 250 C; End time: 5 min; Start time: 1 min; CAS no: 78933; Active phase: HP-5; Phase thickness: 0.1 um; Data type: Linear RI; Authors: Siegmund, B.; Murkovic, M., Changes in chemical composition of pumpkin seeds during the roasting process for production of pumpkin seed oil (Part 2: volatile compounds), Food Chem., 84, 2004, 367-374. 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; End time: 5 min; Start time: 2 min; CAS no: 78933; Active phase: CP-Sil 8CB-MS; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Bruna, J.M. A, 973, 2002, 135-142. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Start T: 40 C; CAS no: 78933; Active phase: HP-1; Phase thickness: 1.05 um; Data type: Kovats RI; Authors: Heberger, K.; Gorgenyi, M.; Kowalska, T., Temperature dependence of Kovats indices in gas chromatography revisited, J. Chromatogr. Toxicol., 22, 1998, 290-295. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; CAS no: 78933; Active phase: RTX-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Wentworth, W.E. ; Nicholson, G.J., Gas chromatography of polar solutes in electron acceptor stationary phases, Aust. Food Chem., 35(1), 1987, 14-18. ass: Standard polar; Column length: 5.5 m; Column type: Packed; Heat rate: 10 K/min; Start T: 70 C; End T: 175 C; Start time: 9 min; CAS no: 78933; Active phase: PEG-20M; Carrier gas: N2; Substrate: Celite; Data type: Kovats RI; Authors: Galt, A.M.; MacLeod, G., Headspace sampling of cooked beef aroma using Tenax GC, J. Agric. Ethyl Methyl Ketone is used as a solvent, in the manufacture of synthetic rubber and paraffin wax, as well as in different chemical products. A compound has the molecular formula C4H8O and contains a carbonyl group. Ecol., 14(2), 1988, 701-712. ass: Standard non-polar; Column type: Capillary; CAS no: 78933; Active phase: Methyl Silicone; Data type: Normal alkane RI; Authors: Chen, Y.; Feng, C., QSPR study on gas chromatography retention index of some organic pollutants, Comput. Food Chem., 39(7), 1991, 1275-1279. ass: Standard polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 60 C; End T: 180 C; Start time: 4 min; CAS no: 78933; Active phase: Carbowax 20M; Carrier gas: He; Data type: Normal alkane RI; Authors: Kawakami, M.; Kobayashi, A.; Kator, K., Volatile constituents of Rooibos tea (Aspalathus linearis) as affected by extraction process, J. Agric. ; Frisvad, J.C., Characterization of volatile metabolites from 47 Penicillium taxa, Mycol. Pondoh during maturation, J. Agric. ; Flath, R.A.; Haddon, W.F. ; Santiuste, J.M., Isothermal retention indices on poly93-cyanopropylmethyl)siloxane stationary phases, J. Chromatogr. ; Marliere, F.; Baud, F.J.; Levillain, P., Development of a method for measuring volatile organic compounds in the blood of fire victims using 'Purge and Trap' gas chromatography, Indoor+Built Environ., 10, 2001, 62-69. ass: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 40 C; End T: 150 C; Start time: 9 min; CAS no: 78933; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Sharp, M.-E.E., A comprehensive screen for volatile organic compounds in biological fluids, J. Anal. The molecular formula C4H8O may refer to: Butanone Butyraldehyde Crotyl alcohol Cyclobutanol 1,2-Epoxybutane 2,3-Epoxybutane Ethyl vinyl ether Isobutyraldehyde 2-Methoxypropene Tetrahydrofuran This set index page lists chemical structure articles associated with the same molecular formula. Food Chem., 22(1), 1974, 123-126. ass: Standard polar; Column diameter: 0.03 in; Column length: 500 ft; Column type: Capillary; Heat rate: 2 K/min; Start T: 60 C; End T: 190 C; Start time: 2 min; CAS no: 78933; Active phase: Carbowax 20M; Carrier gas: He; Data type: Normal alkane RI; Authors: Kinlin, T.E. J. I. Interaction free enthalpies of solutes with non-associated primary alcohol groups, J. Part I. Chromatogr., 845, 1999, 21-31. umn class: Standard polar; Column diameter: 0.75 mm; Column length: 60 m; Column type: Capillary; Start T: 60 C; CAS no: 78933; Active phase: Supelcowax-10; Carrier gas: N2; Data type: Kovats RI; Authors: Castello, G.; Vezzani, S.; Gerbino, T., Gas chromatographic separation and automatic identification of complex mixtures of organic solvents in indrustrial wates, J. Molecular Formula CHO. 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. (a) Alcohols with the molecular formula C4H10O (b) Aldehydes with the molecular formula C4H8O (c) Ketones with the molecular formula C5H10O (d) Carboxylic acids with the molecular formula C5H10O2 arrow_forward Chromatogr., 179, 1979, 75-85. umn class: Standard non-polar; Column length: 12 ft; Column type: Packed; Start T: 150 C; CAS no: 78933; Active phase: SE-30; Data type: Kovats RI; Authors: Haken, J.K.; Ho, D.K.M. A carbon-carbon double bond and a hydroxyl group (there are eight). Transcribed Image Text: The H NMR spectrum below corresponds to an unknown compound with the molecular formula C4H8O. A carbon-carbon double bond and a hydroxyl group (there are eight). Chromatogr., 269, 1983, 153-160. umn class: Semi-standard non-polar; Column type: Packed; Start T: 50 C; CAS no: 78933; Active phase: Squalane; Substrate: Chromosorb G; Data type: Kovats RI; Authors: Mira, J.M. 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. Cyclic isomers of C 4 H 8 ; McGorrin, R.J., Gas chromatography-mass spectroscopy investigations on the flavor chemistry of oat groats, J. Agric. Draw condensed structural formulas for all compounds with the molecular formula C4H8O that contain Q.) Compounds such as aldehydes, ketones, alcohols containing alkene group and cyclic alcohol compounds can be drawn for this molecular formula, C 4 H 8 O. ; Anvaer, B.I. Tertiary. ; Nisyrios, I.; Mottram, D.S., Analysis of the headspace aroma compounds of walnuts (Juglans regia L.), Flavour Fragr. ; Ding, S.F. Question: Click the "draw structure" button to launch the drawing utility. ; Leguijt, T.; Nijhuis, H.H., Aroma profile development of intermediate chocolate products. ; Sanderson, A.; Walradt, J.P., Volatile components of roasted filberts, J. Agric. C3H7 is a propyl group. CC (C)C=O Computed by OEChem 2.3.0 (PubChem release 2021.05.07) PubChem 2.2 Molecular Formula C4H8O CAMEO Chemicals; PubChem C 4 H 8 O (CH 3) 2 CHCHO ILO International Chemical Safety Cards (ICSC) 2.3 Other Identifiers 2.3.1 CAS 78-84-2 ; Hua, R.L. Hyg., 94, 2003, 192-211. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 45 C; End T: 240 C; End time: 5 min; Start time: 13 min; CAS no: 78933; Active phase: SPB-1; Carrier gas: He; Phase thickness: 4 um; Data type: Linear RI; Authors: Larrayoz, P.; Addis, M.; Gauch, R.; Bosset, J.O., Comparison of dynamic headspace and simultaneous distillation extraction techniques used for the analysis of the volatile components in three European PDO ewes milk cheeses, Int. & Chromatogr. Coat. ; Lonneman, W.A., Characterization of non-methane volatile organic compounds at swine facilities in eastern North Carolina, Atm. 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) A, 795, 1998, 319-347. ass: Semi-standard non-polar; Column diameter: 0.2 mm; Column length: 25 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 35 C; End T: 250 C; Start time: 2 min; CAS no: 78933; Active phase: SE-54; Carrier gas: He; Phase thickness: 0.5 um; Data type: Normal alkane RI; Authors: Bellesia, F.; Pinetti, A.; Bianchi, A.; Tirillini, B., Volatile compounds of the white truffle (Tuber magnaturn Pico) from middle Italy, Flavour Fragr. 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. Food Chem., 29, 1981, 950-954. umn class: Standard non-polar; Column type: Capillary; Start T: 100 C; CAS no: 78933; Active phase: Methyl Silicone; Data type: Normal alkane RI; Authors: Lebron-Aguilar, R.; Quintanilla-Lopez, J.E. ass: Standard polar; Column diameter: 0.53 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 50 C; End T: 180 C; Start time: 10 min; CAS no: 78933; Active phase: DB-Wax; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Rizzolo, A.; Cambiaghi, P.; Grassi, M.; Zerbini, P.E., Influence of 1-Methylcyclopropene and Storage Atmosphere on Changes in Volatile Compounds and Fruit Quality of Conference Pears, J. Agric. These may be bonded in two ways. : TWA 200 ppm (590 mg/m 3 ). ; Kowalska, T., Temperature dependence of Kovats indices in gas chromatography. ; Zhuravskaya, N.K., Identification of volatile components of a model system with meat aroma, Zh. Anal. ; Manzanos, M.J., Study of the volatile composition of an aqueous oak smoke preparation, Food Chem., 79, 2002, 283-292. ass: Semi-standard non-polar; Column type: Capillary; CAS no: 78933; Active phase: Methyl phenyl siloxane (not specified); Data type: Normal alkane RI; Authors: Poligne, I.; Collignan, A.; Trystram, G., Effects of salting, drying, cooking, and smoking operations on volatile compound formation and collor patterns in pork, Food Eng. ; Wills, M.T., Speciation of the volatile organic compounds (VOCs) in solventborne aerosol coatings by solid phase microextraction-gas chromatography, J. ; Fernandez, M.; Ordonez, J.A., Changes in selected biochemical and sensory parameters as affected by the superficial inoculation of Penicillium camemberti on dry fermented sausages, Int. Statistical and thermodynamic verification of a 'kinetic' model, Acta Chromatogr., 12, 2002, 65-79. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 373 K; CAS no: 78933; Active phase: DB-1; Carrier gas: He; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciazynska-Halarewicz, K.; Borucka, H.E. Gerichtl. ; Amboni, R.D.M.C. Z. Wilhelm-Pieck-Univ. Transl. ; Estevez, M.; Morcuende, D.; Cava, R., Effect of the type of frying culinary fat on volatile compounds isolated in fried pork loin chops by using SPME-GC-MS, J. Agric. ; Artamonova, M.P. A, 1160, 2007, 276-288. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 30 C; End T: 240 C; Start time: 10 min; CAS no: 78933; Active phase: DB-1; Carrier gas: He; Phase thickness: 1.2 um; Data type: Normal alkane RI; Authors: Ciccioli, P.; Cecinato, A.; Brancaleoni, E.; Frattoni, M.; Liberti, A., Use of carbon adsorption traps combined with high resolution gas chromatography - mass spectrometry for the analysis of polar and non-polar C4-C14 hydrocarbons involved in photochemical smog formation, J. Hi. . Teil 1: Retentionsindices aliphatischer Halogenide, Alkohole, Aldehyde und Ketone, Helv. 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. But structure V is less stable due to presence of positive charge on electronegative oxygen (O) atom. ; Ruiz, J., Analysis of volatile compounds of Iberian dry-cured loins with different intramuscular fat contents using SPME-DED, Meat Sci., 79, 2008, 172-180. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 0 m; Column type: Capillary; Heat rate: 7 K/min; Start T: 40 C; End T: 250 C; End time: 5 min; Start time: 10 min; CAS no: 78933; Active phase: 5 % Phenyl methyl siloxane; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Ramirez, M.R. ; Golovnya, R.V. Relative integration is shown. Comparison of different fibers, J. Chromatogr. ; Mohne, M., PoraPLOT Q: A porous layer open tubular column coated with styrene-divinylbenzene copolymer, J. Hi. ; Buyten, J.C.; Peene, J.A. Comm., 11, 1988, 162-167. umn class: Standard non-polar; Column length: 3 m; Column type: Packed; Start T: 150 C; CAS no: 78933; Active phase: SE-30; Carrier gas: Ar; Substrate: Gas Chrom Q (80-100 mesh); Data type: Kovats RI; Authors: Tiess, D., Gaschromatographische Retentionsindices von 125 leicht- bis mittelfluchtigen organischen Substanzen toxikologisch-analytischer Relevanz auf SE-30, Wiss. Food Chem., 43, 1995, 2212-2218. ass: Standard polar; Column type: Capillary; CAS no: 78933; Active phase: Carbowax 20M; Substrate: Supelcoport; Data type: Normal alkane RI; Authors: Peng, C.T. ; Muralidhara, R.; Pittet, A.O. Food. Statistical and thermodynamic verification of a 'kinetic' model, Acta Chromatogr., 12, 2002, 65-79. umn class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 373 K; CAS no: 78933; Active phase: DB-5; Carrier gas: He; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciazynska-Halarewicz, K.; Borucka, H.E. Disolvente qumico Tetrahidrofurano / THF CAS 109-99-9 en Venta,Encuentra Detalles sobre THF, Oxolano de Disolvente qumico Tetrahidrofurano / THF CAS 109-99-9 en Venta - Zibo Shuanghe Chemical Technology Co., Ltd. Chromatogr., 269, 1983, 153-160. umn class: Semi-standard non-polar; Column length: 3 m; Column type: Packed; Start T: 200 C; CAS no: 78933; Active phase: Squalane; Carrier gas: He; Substrate: Chromosorb G; Data type: Kovats RI; Authors: Castello, G.; D'Amato, G., Classification of the "Polarity" of porous polymer bead stationary phases by comparison with squalane and apolane standard liquid phases, J. & Chromatogr. Transl. Food Chem., 49, 2001, 2409-2413. class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 60 0C ^ 5 0C/min -> 100 0C ^ 25 0C/min -> 240 0C; CAS no: 78933; Active phase: DB-5; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Wahl, H.G. Food Composition & Analysis, 20, 2007, 297-307. ass: Standard polar; Column type: Capillary; CAS no: 78933; Active phase: Carbowax 20M; Data type: Normal alkane RI; Authors: Ramsey, J.D. Med., 47, 1989, 525-532. class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: 40C(10min)=> 5C/min => 200C =>20C/min =>250C (5min); CAS no: 78933; Active phase: DB-5; Phase thickness: 1.05 um; Data type: Normal alkane RI; Authors: Garcia-Estaban, M.; Ansorena, D.; Astiasaran, I.; Ruiz, J., Study of the effect of different fiber coatings and extraction conditions on dry cured ham volatile compounds extracted by solid-phase microextraction (SPME), Talanta, 64, 2004, 458-466. class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: 40C(10min)=>5C/min=>200C=>20C/min=>250C(5min); CAS no: 78933; Active phase: HP-5; Phase thickness: 1.05 um; Data type: Normal alkane RI; Authors: Garcia-Estaban, M.; Ansorena, D.; Astiasaran, I.; Martin, D.; Ruiz, J., Comparison of simultaneous distillation extraction (SDE) and solid-phase microextraction (SPME) for the analysis of volatile compounds in dry-cured ham, J. Sci. Formula in Hill system is C4H8O: Computing molar mass (molar weight) To calculate molar mass of a chemical compound enter its formula and click 'Compute'. Food Agric., 75, 2000, 451-458. 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; End time: 60 min; Start time: 5 min; CAS no: 78933; Active phase: DB-Wax; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Cha, Y.J. J. Food Chem., 53, 2005, 9578-9585. ass: Standard polar; Column type: Capillary; CAS no: 78933; Active phase: Innowax; Data type: Normal alkane RI; Authors: Junkes, B.S. ; Guy, R.C.E. We are a Leading Supplier of Methyl Ethyl Ketone in India. Statistical and thermodynamic verification of a 'kinetic' model, Acta Chromatogr., 12, 2002, 65-79. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 348 K; CAS no: 78933; Active phase: DB-1; Carrier gas: He; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciazynska-Halarewicz, K.; Borucka, H.E. CAS Registry Number: 78-93-3. Problem: Draw condensed structural formulas for the two aldehydes with the molecular formula C4H8O. Physical Properties, 67(8), 2002, 2976-2986. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; CAS no: 78933; Active phase: CP Sil 8 CB; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Duckham, S.C.; Dodson, A.T.; Bakker, J.; Ames, J.M., Volatile flavour components of baked potato flesh. 'H NMR IH 6.0 THIH 4.3 1H 3 H T T 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 300-MHz 'H NMR spectrum ppm (8) (CH3)4 Si 0.5 0.0. Polymer Symp., , 1976, 889-901. ass: Standard non-polar; Column type: Capillary; Heat rate: 2 K/min; Start T: 70 C; End T: 170 C; CAS no: 78933; Active phase: SE-30; Carrier gas: Helium; Data type: Normal alkane RI; Authors: Alves, S.; Jennings, W.G., Volatile composition of certain Amazonian fruits, Food Chem., 4(2), 1979, 149-159. ass: Standard non-polar; Column type: Capillary; CAS no: 78933; Active phase: OV-1; Data type: Normal alkane RI; Authors: Ramsey, J.D. (Rus. Chromatogr., 235, 1982, 119-127. umn class: Standard non-polar; Column type: Capillary; Start T: 75 C; CAS no: 78933; Active phase: Polydimethyl siloxane; Data type: Normal alkane RI; Authors: Tello, A.M.; Lebron-Aguilar, R.; Quintanilla-Lopez, J.E. Or we can put the COOH group in the middle of the propyl chain to get (CH3)2CHCOOH, 2-methylpropanoic acid. 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. Unters. ; Campo, M.M. ; Rafalowski, K., HS-SPME analysis of volatile organic compounds of coniferous needle litter, Atmos. Draw the structure of a compound of molecular formula C_4H_8O that has a signal in its^13 C NMR spectrum at greaterthanorequalto 160 ppm. ; Santiuste, J.M., Isothermal retention indices on poly93-cyanopropylmethyl)siloxane stationary phases, J. Chromatogr. But in trans structure, -CH 3 groups are placed at opposite sites. Food Chem., 46(12), 1998, 5232-5237. ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 45 C; End T: 220 C; CAS no: 78933; Active phase: DB-Wax; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Molleken U.; Sinnwell V.; Kubeczka K.H., TThe essential oil composition of fruits from Smyrnium perfoliatum, Phytochemistry, 47, 1998, 1079-1083. ass: Standard polar; Column diameter: 0.22 mm; Column length: 50 m; Column type: Capillary; Heat rate: 15 K/min; Start T: 40 C; End T: 180 C; End time: 15 min; Start time: 5 min; CAS no: 78933; Active phase: BP-20; Carrier gas: He; Phase thickness: 0.2 um; Data type: Normal alkane RI; Authors: Ramos, E.; Valero, E.; Ibanez, E.; Reglero, G.; Tabera, J., Obtention of a brewed coffee aroma extract by an optimized supercritical CO2-based process, J. Agric. ; Yook, H.S. 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. : 78-84-2 Formula: C4h8o EINECS: 201-149-6 Type: Isobutyraldehyde Appearance: Liquid Quality: Industrial 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. Bull. 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. ; de Jonge, H.G. In cis structure, -CH 3 is placed in same side of the double bond. 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. Forsch., 186, 1988, 301-307. class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 35C(8min) =>4C/min => 60C =>6C/min =>160C =>20C/min =>220C(1min); CAS no: 78933; Active phase: Supelcowax-10; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Bianchi, F.; Cantoni, C.; Careri, M.; Chiesa, L.; Musci, M.; Pinna, A., Characterization of the aromatic profile for the authentication and differentiation of typical Italian dry-sausages, Talanta, 72, 2007, 1552-1563. class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 35C(8min) =>4C/min =>60C =>6C/min =>160C=>20C/min =>200C(1min); CAS no: 78933; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Bianchi, F.; Careri, M.; Mangia, A.; Musci, M., Retention indices in the analysis of food aroma volatile compounds in temperature-programmed gas chromatography: Database creation and evaluation of precision and robustness, J. Sep. Food Chem., 50, 2002, 1126-1132. 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; End time: 5 min; Start time: 2 min; CAS no: 78933; Active phase: CP-Sil 8CB-MS; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Hierro, E.; de la Hoz, L.; Ordonez, J.A., Headspace volatile compounds from salted and occasionally smoked dried meats (cecinas) as affected by animal species, Food Chem., 85, 2004, 649-657. 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 8CB-MS; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Bruna, J.M. Chem. ; Tello, A.M.; Santiuste, J.M., Isothermal retention indices on poly (3,3,3-trifluoropropylmethylsiloxane) stationary phases, J. Chromatogr. ; Yunes, R.A.; Heinzen, V.E.F., Application of the semi-empirical topological index in quantitative structure-chromatographic retention relationship (QSRR) studies of aliphatic ketones and aldehydes on stationary phases of different polarity, J. Braz. In the context of large biological molecules such as DNA, proteins, and carbohydrates, structural differences in the carbon skeleton often affect how the molecule functions. A, 1008, 2003, 97-103. umn class: Semi-standard non-polar; Column length: 2.3 m; Column type: Packed; Start T: 150 C; CAS no: 78933; Active phase: Apiezon L; Carrier gas: N2; Substrate: DCMS-treated Chromosorb W; Data type: Kovats RI; Authors: Brown, I.; Chapman, I.L. House, Moscow, 1978, 192. umn class: Semi-standard non-polar; Column type: Packed; Start T: 160 C; CAS no: 78933; Active phase: Apiezon L; Substrate: Celite 545; Data type: Kovats RI; Authors: Bogoslovsky, Yu.N. 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. Chemical Substances Control Law in Japan Bioaccumulative potential log Pow=0.45 (20)(REACH Registration dossier) 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. 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