Food Chem., 48, 2000, 6200-6204. ass: Standard polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 60 C; End T: 190 C; End time: 21 min; Start time: 4 min; CAS no: 71363; Active phase: CP-Wax 52CB; Carrier gas: H2; Phase thickness: 0.22 um; Data type: Normal alkane RI; Authors: Hwan, C.-H.; Chou, C.-C., Volatile components of the Chinese fermented soya bean curd as affected by the addition of ethanol in ageing solution, J. Sci. Data, 48, 2003, 591-599. 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: 71363; 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. The atoms in a molecule have equal or nearly equal electronegativities and have zero or very small dipole moments. Amino acid are organic compounds. Chem., 62, 1990, 2676-2684. ass: Standard non-polar; Column diameter: 0.31 mm; Column length: 25 m; Column type: Capillary; CAS no: 71363; Active phase: OV-101; Carrier gas: He; Data type: Normal alkane RI; Authors: Morales, A.L. ; Ahn, H.J. Food Chem., 53, 2005, 7931-7938. ass: Standard polar; Column type: Capillary; CAS no: 71363; Active phase: CP-Wax 52CB; Carrier gas: Hydrogen; Data type: Normal alkane RI; Authors: Jales, K.A. Bull. ; Hunt, M.B. Retention indices of amines in some polar and unpolar stationary phases, Latv. Food Chem., 38(1), 1990, 226-233. ass: Standard non-polar; Column diameter: 0.22 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 80 C; End T: 200 C; CAS no: 71363; Active phase: OV-101; Data type: Normal alkane RI; Authors: Egolf, L.M. Res. Chromatogr., 17, 1994, 31-36. ass: Standard non-polar; Column diameter: 0.29 mm; Column length: 80 m; Column type: Capillary; CAS no: 71363; Active phase: SE-30; Data type: Kovats RI; Authors: Brander, C.F. ass: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 40 C; End T: 250 C; End time: 10 min; Start time: 2 min; CAS no: 71363; Active phase: ZB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Wu, S.; Krings, U.; Zorn, H.; Berger, R.G., Volatile compounds from the fruiting bodies of beefsteak fungus Fistulina hepatica (Schaeffer: Fr.) XXVII. ; Kim, J.-S., Analysis of volatile components in frozen and dried scallops (Patinopecten yessoensis) by gas chromatography/mass spectrometry, Food Res. Did you like it? Aliment. A non-polar molecule has a structure of its atoms lined up in a way that the orbital electrons in the outer region cancel out the electronegativity. (Engl. ; Willis,B.J., ed(s), Elsevier, New York, 1988, 537-550. ass: Standard polar; Column diameter: 0.22 mm; Column length: 50 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 80 C; End T: 200 C; CAS no: 71363; Active phase: Carbowax 20M; Carrier gas: N2; Data type: Normal alkane RI; Authors: Mihara, S.; Tateba, H.; Nishimura, O.; Machii, Y.; Kishino, K., Volatile components of Chinese quince (Pseudocydonia sinensis Schneid), J. Agric. Draw the Lewis Structure The Lewis dot structure provides a simple model between the bonds in a molecule and the lone electron pairs. Res. Sci., 17, 1979, 631-635. umn class: Semi-standard non-polar; Column type: Packed; Start T: 70 C; CAS no: 71363; Active phase: Apiezon L; Data type: Kovats RI; Authors: Bogoslovsky, Yu.N. What is Polarity? - Definition & Example, Polar Vs Non-Polar Molecules [Answers] 238 Questions of Inorganic and Organic Chemistry A molecule is polar if theres a significant difference in the electronegativity charges between elements. ; Smith, T.G., Use of hydrocarbons as carrier gases in GLC, J. Chromatogr. ; Yung, I.K.S. 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: 200 C; Start time: 5 min; CAS no: 71363; 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. J.H. Chromatogr., 472, 1989, 129-143. umn class: Standard non-polar; Column diameter: 0.75 mm; Column length: 60 m; Column type: Capillary; CAS no: 71363; Active phase: SPB-1; 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. golden crispy, J. Agric. Food Chem., 29, 1981, 831-834. umn class: Standard non-polar; Column length: 2 m; Column type: Packed; Start T: 100 C; CAS no: 71363; Active phase: SE-30; Substrate: Chromosorb W; Data type: Kovats RI; Authors: Zarazir, D.; Chovin, P.; Guiochon, G., Identification of hydroxylic compounds and their derivatives by gas chromatography, Chromatographia, 3, 1970, 180-195. umn class: Semi-standard non-polar; Column length: 1 m; Column type: Packed; Start T: 200 C; CAS no: 71363; 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: Standard non-polar; Column length: 12 ft; Column type: Packed; Start T: 150 C; CAS no: 71363; Active phase: SE-30; Substrate: Celatom AW silanized; Data type: Kovats RI; Authors: Haken, J.K.; Nguyen, A.; Wainwright, M.S., Application of linear extrathermodynamic relationships to alcohols, aldehydes, ketones, amd ethoxy alcohols, J. Food Chem., 52, 2004, 7918-7924. class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 35C(8min) =>6C/min =>60C =>4C/min =>160C=> 20C/min => 200C(1min); CAS no: 71363; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Berard, J.; Bianchi, F.; Careri, M.; Chatel, A.; Mangia, A.; Musci, M., Characterization of the volatile fraction and of free fatty acids of "Fontina Valle d'Aosta", a protected designation of origin Italian cheese, Food Chem., 105, 2007, 293-300. ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 40 C; End T: 230 C; End time: 5 min; Start time: 2 min; CAS no: 71363; Active phase: DB-Wax; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Zhao, Y.; Xu, Y.; Li, J.; Fan, W.; Jiang, W., Profile of volatile compounds in 11 brandies by headspace solid-phase microextraction followed by gas chromatography-mass spectrometry, J. Almost yours:. ; Grossmann, I.; Geary, M.; Delahunty, C.M., Interactions between artificial saliva and 20 aroma compounds in water and oil model systems, J. Agric. Glycine is also the only achiral amino acid as it has 2 hydrogens bonded to its alpha carbon. Contribution of dynamic headspace GC-MS analysis of aroma compounds to authenticity testing of honey, Food Chem., 72, 2001, 511-520. class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 45C(4min) => 30C/min => 60C (5min) => 3C/min => 220C (40min); CAS no: 71363; Active phase: DB-Wax; Carrier gas: He; Data type: Linear RI; Authors: Ziegleder, G., Odorous compounds in paperboard as influenced by recycled material and storage, Packag. Notice that a tetrahedral molecule such as \(\ce{CCl_4}\) is nonpolar Figure (\(\PageIndex{1}\). Polar molecules have an unshared electron pair while the nonpolar molecule doesnt. A completely polar bond is more correctly called an ionic bond, and occurs when the difference between electronegativities is large enough that one atom actually takes an electron from the other. Chromatogr., 399, 1987, 1-31. umn class: Standard polar; Column length: 1 m; Column type: Packed; Start T: 120 C; CAS no: 71363; Active phase: PEG-20M; Data type: Kovats RI; Authors: Betts, T.J., Triangular Characterization of Gas Chromatographic Stationary Phases, J. ; Samusenko, A.L., Method for prediction of the ability of analyte for self-association in pure liquid, 2000. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Start T: 110 C; CAS no: 71363; Active phase: SE-30; Carrier gas: He; Phase thickness: 1 um; Data type: Kovats RI; Authors: Golovnya, R.V. Food Chem., 50, 2002, 5355-5359. 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: 220 C; Start time: 5 min; CAS no: 71363; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Lopez, R.; Ezpeleta, E.; Sanchez, I.; Cacho, J.; Ferreira, V., Analysis of the aroma intensities of volatile compounds released from mild acid hydrolysates of odourless precursors extracted from Tempranillo and Grenache grapes using gas chromatography-olfactometry, Food Chem., 88, 2004, 95-103. class: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Description: 40C=> 1C/min => 57C => 15C/min =>230C (5min); CAS no: 71363; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.5 um; Data type: Normal alkane RI; Authors: le Pape, M.-A. Food Chem., 37(2), 1989, 418-420. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 30 C; End T: 200 C; End time: 20 min; Start time: 25 min; CAS no: 71363; Active phase: DB-1; Carrier gas: He; Data type: Normal alkane RI; Authors: Buttery, R.G. Sci., 11, 1998, 231-239. ass: Standard polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Heat rate: 8 K/min; Start T: 60 C; End T: 220 C; CAS no: 71363; Active phase: Carbowax 20M; Carrier gas: He; Data type: Normal alkane RI; Authors: Riganakos, K.A. ; Franco, M.R.B. Data, , 1975, d14-d16. ; Ling, L.C., Studies on flavor volatiles of some sweet corn products, J. Agric. A, 1216, 2009, 1630-1639. umn class: Standard non-polar; Column type: Capillary; Start T: 120 C; CAS no: 71363; Active phase: Methyl Silicone; Data type: Normal alkane RI; Authors: Lebron-Aguilar, R.; Quintanilla-Lopez, J.E. Technol. Int., 35, 2002, 43-53. class: Standard polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Description: 35C(2min) =>5C/min => 170C =>20C/min =>240C (10min); CAS no: 71363; Active phase: FFAP; Carrier gas: He; Phase thickness: 0.3 um; Data type: Linear RI; Authors: Fuhrmann, E.; Grosch, W., Character impact odorants of the apple cultivars Elstar and Cox Orange, Nahrung/Food, 46(3), 2002, 187-193. ass: Standard polar; Column diameter: 0.75 mm; Column length: 150 m; Column type: Capillary; CAS no: 71363; Active phase: Carbowax 20M; Data type: Linear RI; Authors: Whitfield, F.B. A, 1160, 2007, 276-288. umn class: Standard non-polar; Column type: Capillary; Start T: 105 C; CAS no: 71363; Active phase: Polydimethyl siloxane; Data type: Normal alkane RI; Authors: Tello, A.M.; Lebron-Aguilar, R.; Quintanilla-Lopez, J.E. Retention increments of C1-C18 primary alkanols and their 2-chloropropanoyl and 3-chloropropanoyl derivatives on SE-30 and OV-351 capillary columns, J. Is C4H10 polar or nonpolar - Bengis Life Transl. ; Grua-Priol, J.; Prost, C.; Demaimay, M., Optimization of dynamic headspace extraction of the edible red algae Palmaria palmata and identification of the volatile components, J. Agric. ; Palmer, J.K.; Tao, P., Flavor evaluation and characterization of yogurt as affected by ultra-high temperature and vat processes, J. Ser., , 1973, 51-63. umn class: Standard polar; Column length: 3 m; Column type: Packed; Start T: 152 C; CAS no: 71363; Active phase: PEG-2000; Carrier gas: He; Substrate: Celite 545 (44-60 mesh); Data type: Kovats RI; Authors: Anderson, A.; Jurel, S.; Shymanska, M.; Golender, L., Gas-liquid chromatography of some aliphatic and heterocyclic mono- and pollyfunctional amines. Food Chem., 53, 2005, 8881-8895. class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 20C(30s) =>fast=>60C =>4C/min => 220C (20min); CAS no: 71363; Active phase: DB-Wax; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Cantergiani, E.; Brevard, H.; Krebs, Y.; Feria-Morales, A.; Amado, R.; Yeretzian, C., Characterisation of the aroma of green Mexican coffee and identification of mouldy/earthy defect, Eur. ; Franco, M.R.B., Evaluation de los compuestos odoriferos del jugo de maracuya amarillo por GC-MS y GC-O (OSME), Alimentis y bebidas, 3, 2005, 12-14. class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 35C(5min) => 2C/min => 50C => 5C/min =>200C (5min); CAS no: 71363; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Mattheis, J.P.; Fan, X.; Argenta, L.C., Interactive Responses of Gala Apple Fruit Volatile Production to Controlled Atmosphere Storage and Chemical Inhibition of Ethylene Action, J. Agric. Biochem., 78, 1977, 244-251. ass: Standard polar; Column diameter: 0.03 in; Column length: 1000 ft; Column type: Capillary; Heat rate: 4 K/min; Start T: 80 C; End T: 225 C; Start time: 5 min; CAS no: 71363; Active phase: Carbowax 20M; Data type: Normal alkane RI; Authors: Mussinan, C.J.
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