; Marques, J.C.; Camara, J.S., Analytical characterization of the aroma of Tinta Negra Mole red wine: Identification of the main odorants compounds, Anal. Food Chem., 41(11), 1993, 1974-1981. class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 40 m; Column type: Capillary; Description: 30 0C (1 min) ^ 15 0C/min -> 45 0C ^ 3 0C/min -> 120 0C; CAS no: 71363; Active phase: CP Sil 8 CB; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Weller, J.-P.; Wolf, M., Massenspektroskopie und Headspace-GC, Beitr. House, Moscow, 1978, 192. umn class: Semi-standard non-polar; Column type: Packed; Start T: 120 C; CAS no: 71363; Active phase: Apiezon L; Substrate: Celite 545; Data type: Kovats RI; Authors: Bogoslovsky, Yu.N. ; Evans, P.; Ewen, R.J.; Gunson, H.E. The electronegativity values are equal or nearly equal. II. Transl. A, 1160, 2007, 276-288. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; CAS no: 71363; Active phase: DB-1; Data type: Normal alkane RI; Authors: Binder, R.G. Its non-polarity tells us that the only intermolecular forces it has are London dispersion forces. Polar molecules have an unshared electron pair while the nonpolar molecule doesnt. The Lewis dot structure isnt applicable with hydrocarbons and molecules consisting of two atoms of the same element. Chem., 55(8), 1983, 1331-1335, In original 1331-1335. ass: Semi-standard non-polar; Column length: 1.2 m; Column type: Packed; CAS no: 71363; Active phase: Apiezon L; Substrate: Chromosorb W HMDS HP (00-120 mesh); Data type: Kovats RI; Authors: Rasmussen, P., Identification of Volatile Components of Jacjfruit by Gas Chromatography / MAss Spectrometry with Two Different Columns, Anal. J., 81, 2005, 184-190. umn class: Standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Start T: 50 C; CAS no: 71363; Active phase: HP-1; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Wang, Y.; Liu, J.; Li, N.; Shi, G.; Jiang, G.; Ma, W., Preliminary study of the retention behavior for different compounds using cryogenic chromatography at different initial temperatures, Microchem. Food Chem., 26(6), 1978, 1426-1430. umn class: Standard polar; Column length: 3 m; Column type: Packed; Start T: 180 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. Chromatogr., 22(10), 1999, 589-593. umn class: Standard polar; Column length: 3 m; Column type: Packed; Start T: 120 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. BF3 is a non-polar compound. Coat. (Engl. ; Flath, R.A.; Mon, T.R., Volatile components of bittermelon, J. Agric. Sci., 55(5), 1990, 1325-1326. ass: Standard polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 230 C; End time: 25 min; Start time: 5 min; CAS no: 71363; Active phase: DB-Wax; Carrier gas: H2; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Dregus, M.; Engel, K.-H., Volatile constituents of uncooked Rhubarb (Rheum rhabarbarum L.) stalks, J. Agric. Chromatogr., 288, 1984, 329-346. ass: Standard non-polar; Column diameter: 0.22 mm; Column length: 25 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 70 C; End T: 205 C; CAS no: 71363; Active phase: CP Sil 5 CB; Data type: Linear RI; Authors: Hendriks, H.; Bruins, A.P., A tentative identification of components in the essential oil of Cannabis sativa L. by a combination of gas chromatography negative ion chemical ionization mass spectrometry and retention indices, Biomed. ; Yung, I.K.S. It all depends upon the electronegativity difference between the bonded atoms in a molecule. fruit, J. Agric. J., 20, 2005, 583-586. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 250 C; End time: 20 min; Start time: 2 min; CAS no: 71363; Active phase: SPB-5; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Pino, J.A. Chem. Ethylene (C2H4) is nonpolar in nature because of the symmetrical (linear) geometrical shape. J.H. J., 20, 2005, 22-29. ass: Standard polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 45 C; End T: 250 C; End time: 12 min; Start time: 1 min; CAS no: 71363; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 1 um; Data type: Linear RI; Authors: Malliaa, S.; Fernandez-Garcia, E.; Bosset, J.O., Comparison of purge and trap and solid phase microextraction techniques for studying the volatile aroma compounds of three European PDO hard cheeses, Int. Cancellation depends on the shape of the molecule or Stereochemistry and the orientation of the polar bonds. ; Shea, S.R. ; Webb, A.D., Identification of Some Volatile Compounds of Wine of Vitis Vinifera Cultivar Pinot Noir, Am. Chromatogr., 410, 1987, 13-29. umn class: Standard polar; Column length: 2 m; Column type: Packed; Start T: 75 C; CAS no: 71363; 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. ; 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. Food Chem., 49, 2001, 2409-2413. ass: Semi-standard non-polar; Column diameter: 0.20 mm; Column length: 25 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 50 C; End T: 180 C; Start time: 3 min; CAS no: 71363; Active phase: HP-5; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Jung, A.; Wichmann, K.-H.; Kolb, M., VOC emission of polymeric packaging materials, LaborPraxis, 23(9), 1999, 20-22. ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Heat rate: 15 K/min; Start T: 30 C; End T: 250 C; End time: 5 min; Start time: 2 min; CAS no: 71363; Active phase: PoraPLOT; Carrier gas: He; Data type: Normal alkane RI; Authors: Ojanpera, I.; Pihlainen, K.; Vuori, E., Identification limits for volatile organic compounds in the blood by purge-and-trap GC/FTIR, J. Anal. A polar molecule results from an unequal/unsymmetrical sharing of valence electrons. Chromatogr., 90, 1974, 19-33. umn class: Semi-standard non-polar; Column type: Capillary; CAS no: 71363; Active phase: BP-5; Data type: Kovats RI; Authors: SGE, Guide to GC column selection, 2005. umn class: Semi-standard non-polar; Column type: Capillary; CAS no: 71363; Active phase: BPX-5; Data type: Kovats RI; Authors: SGE, Guide to GC column selection, 2005. umn class: Semi-standard non-polar; Column diameter: 0.31 mm; Column length: 25 m; Column type: Capillary; Start T: 75 C; CAS no: 71363; Active phase: SE-54; Carrier gas: He; Phase thickness: 0.52 um; Data type: Kovats RI; Authors: Guan, Y.; Kiraly, J.; Rijks, J.A., Interactive retention index database for compound identification in temperature-programmed capillary gas chromatography, J. House, Moscow, 1978, 192. umn class: Semi-standard non-polar; Column type: Capillary; Start T: 120 C; CAS no: 71363; Active phase: Apiezon M; Data type: Kovats RI; Authors: Golovnya, R.V. Microbiol., 62(4), 1996, 1295-1299. ass: Standard polar; Column diameter: 0.53 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 210 C; CAS no: 71363; Active phase: DB-Wax; Data type: Normal alkane RI; Authors: Iwatsuki, K.; Mizota, Y.; Kubota, T.; Nishimura, O.; Masuda, H.; Sotoyama, K.; Tomita, M., Aroma extract dilution analysis. 24th Jan, 2016. ; Samusenko, A.L., Gas-chromatographic method of evaluation of n-alkanol ability for self-association in pure liquid, Russ. J. Enol. ; Yang, Z.C., Prediction of Retention Indexes I. Structure-Retention Index Relationship on Apolar Columns, J. ; Kuz'menko, T.E., The use of a nonlinear equation for calculation of the retention indices of polar substances in gas chromatography with linear temperature programming, Russ. Benzene (or C6H6) is a NONPOLAR molecule because all the individual bonds are nonpolar and C6H6 has symmetrical geometry. ; Hsieh, T.C.-Y., Analysis of crabmeat volatile compounds, J. Information on this page: Kovats' RI, non-polar column, custom temperature program . ; Koller, W.D. ; Lonneman, W.A., Characterization of non-methane volatile organic compounds at swine facilities in eastern North Carolina, Atm. Chem., 69, 1997, 364-372. ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: -50 C; End T: 180 C; CAS no: 71363; Active phase: DB-1; Phase thickness: 1 um; Data type: Linear RI; Authors: Helmig, D.; Pollock, W.; Greenberg, J.; Zimmerman, P., Gas chromatography mass spectrometry analysis of volatile organic trace gases at Mauna Loa Observatory, Hawaii, J. Geophys. Sci., 14, 2001, 131-136. ass: Standard polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 220 C; End time: 30 min; Start time: 5 min; CAS no: 71363; Active phase: CP-Wax 52CB; Data type: Linear RI; Authors: Chevance, F.F.V. Term. Food Chem., 33, 1985, 380-384. ass: Standard polar; Column diameter: 0.2 mm; Column length: 80 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 70 C; End T: 170 C; CAS no: 71363; Active phase: Carbowax 20M; Data type: Normal alkane RI; Authors: Anker, L.S. If the difference is between 0.4 and 1.7, then the bond is described as polar. ; Palmer, J.K.; Tao, P., Flavor evaluation and characterization of yogurt as affected by ultra-high temperature and vat processes, J. Food Chem., 48, 2000, 1263-1265. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 35 C; End T: 200 C; Start time: 10 min; CAS no: 71363; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Girard, B.; Durance, T., Headspace volatiles of sockeye and pink salmon as affected by retort process, Food Chem. Due to this similarity in electronegativity values, the C-H bond is considered non-polar. Has a positively charged end and a negatively charged end, 3 Steps to Determine if a Molecule is Polar Or Nonpolar. Food Chem., 53(10), 2005, 4157-4165. 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: 71363; Active phase: DB-1; Data type: Normal alkane RI; Authors: Habu, T.; Flath, R.A.; Mon, T.R. Food Chem., 52, 2004, 3069-3076. class: Standard polar; Column diameter: 0.2 mm; Column length: 50 m; Column type: Capillary; Description: 70C(1min) => 3C/min =>142C=>5C/min => 225C(10min); CAS no: 71363; Active phase: FFAP; Carrier gas: He; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Lara, I.; Graell, J.; Lopez, M.L. Food Chem., 48, 2000, 4290-4293. 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: Normal alkane RI; Authors: Ziegleder, G., Volatile and odorous compounds in unprinted paperboard, Packag. ; Kepner, R.E. an ion and a nonpolar molecule; the strength is proportionate to the ion charge . J. Enol. Phys. This molecule is Methanol and has two geometric centers - the Carbon and the Oxygen. Polar Molecules: The polar molecules are the molecules in which there exist two oppositely charged poles. ; Snyder, C.H., Volatile components of two cultivars of mango from Florida, J. Agric. junio 12, 2022. jonah bobo 2005 . ; Kim, J.-S., Comparison of volatile components in dried scallops (Chlamys farreri and Patinopecten yessoensis) prepared by boiling and steaming methods, J. Agric. Food Chem., 55, 2007, 8696-8702. ass: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 70 C; End T: 200 C; Start time: 2 min; CAS no: 71363; Active phase: DB-Wax; Data type: Normal alkane RI; Authors: Wyllie, S.G.; Brophy, J.J.; Sarafis, V.; Hobbs, M., Volatile Components of the Fruit of Pistacia Lentiscus, J. is c4h10o polar or nonpolar. Food Chem., 51, 2003, 5408-5413. 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: 250 C; End time: 10 min; Start time: 2 min; CAS no: 71363; Active phase: HP-Innowax; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Hashizume M.; Gordon M.H. However, there are always exceptions. Another reason is that the hydrogen-carbon bonds are nonpolar because of nearly the same electronegativity. Khim., 46, 1991, 1421-1429. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; CAS no: 71363; 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. ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 50 C; End T: 240 C; Start time: 5 min; CAS no: 71363; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Shiota, H., New esteric components in the volatiles of banana fruit (Musa sapientum L.), J. Agric. ; Stearns, S.D., Multiple detector responses for gas chromatography peak identification, J. Chromatogr. Sci. Food Chem., 53, 2005, 4510-4516. ass: Standard polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 35 C; End T: 235 C; End time: 30 min; Start time: 4 min; CAS no: 71363; Active phase: DB-Wax; Carrier gas: Nitrogen; Phase thickness: 0.50 um; Data type: Normal alkane RI; Authors: Qian, M.C. Top Morgan Gee 3B Posts: 100 Joined: Thu Oct 01, 2020 4:48 am Re: C-H bond polarity By . Rostock Math. Molecular Formula CHN. Transl. J., 81, 2005, 184-190. umn class: Standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Start T: 0 C; CAS no: 71363; Active phase: HP-1; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Wang, Y.; Liu, J.; Li, N.; Shi, G.; Jiang, G.; Ma, W., Preliminary study of the retention behavior for different compounds using cryogenic chromatography at different initial temperatures, Microchem. A primary alcohol that is butane in which a hydrogen of one of the methyl groups is substituted by a hydroxy group. Food Agric., 84, 2003, 5-20. class: Standard polar; Column diameter: 0.2 mm; Column length: 50 m; Column type: Capillary; Description: 70C(1min) =>3C/min =>142C =>5C/min =>225C(10min); CAS no: 71363; Active phase: FFAP; Carrier gas: He; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Lopez, M.L. Food Res.
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