Acta., 563, 2006, 154-164. class: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 40C(10min) =>2C/min =>200C(1min) =>2C/min =>250C (10min); CAS no: 71363; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Bosch-Fuste, J.; Riu-Aumatell, M.; Guadayol, J.M. This is what is meant by neutral - polar or uncharged - polar. ; Jurs, P.C., Quantitative structure-retention and structure-odor intensity relationships for a diverse group of odor-active compounds, Anal. Food Sci., 55(4), 1990, 962-966. ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 240 C; Start time: 3 min; CAS no: 71363; Active phase: Carbowax 20M; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Schwab, W.; Mahr, C.; Schreier, P., Studies on the enzymic hydrolysis of bound aroma components from Carica papaya fruit, J. Agric. J., 81, 2005, 184-190. umn class: Standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Start T: 40 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. (Engl. Food Chem., 24(2), 1976, 336-341. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 60 C; End T: 240 C; CAS no: 71363; Active phase: Mega 5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Condurso, C.; Verzera, A.; Romeo, V.; Ziino, M.; Trozzi, A.; Ragusa, S., The leaf volatile constituents of Isatis tinctoria by solid-phase microextraction and gas chromatography/mass spectrometry, Planta Medica, 72, 2006, 924-928. 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: 10 min; Start time: 2 min; CAS no: 71363; Active phase: SPB-5; Phase thickness: 1 um; Data type: Linear RI; Authors: Engel, E.; Ratel, J., Correction of the data generated by mass spectrometry analyses of biological tissues: Application to food authentication, J. Chromatogr. ; Williams, J.; Beens, J.; Adahchour, M.; Vreuls, R.J.J. Chem. Ind. Food Chem., 39(10), 1991, 1830-1832. ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 50 C; End T: 240 C; Start time: 3 min; CAS no: 71363; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Krammer, G.; Winterhalter, P.; Schwab, M.; Schreier, P., Glycosidically bound aroma compounds in the fruits of Prunus species: Apricot (P. armeniaca, L.) peach (P. persica, L.) yellow plum (P. domestica, L. ssp. ; Ruedi, P., Analysis of the Volatile Components of Five Turkish Rhododendron Species by Headspace Solid-Phase Microextraction and GC-MS (HS-SPME-GC-MS), Z. Food Chem., 57(3), 2009, 924-929. ass: Standard polar; Column diameter: 0.20 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 45 C; End T: 190 C; End time: 50 min; Start time: 2 min; CAS no: 71363; Active phase: HP-Innowax; Carrier gas: Helium; Phase thickness: 0.20 um; Data type: Normal alkane RI; Authors: Soria, A.C.; Sanz, J.; Martinez-Castro, I., SPME followed by GC-MS: a powerful technique for qualitative analysis of honey volatiles, Eur. ), 49(2), 2000, 317-320. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Start T: 100 C; CAS no: 71363; Active phase: SE-30; Carrier gas: He; Phase thickness: 1 um; Data type: Kovats RI; Authors: Golovnya, R.V. Rostock Math. Food Chem., 53, 2005, 4524-4528. ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 45 C; End T: 240 C; End time: 30 min; Start time: 10 min; CAS no: 71363; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Nielsen, G.S. ; Tewari, R.P., Volatile flavour components of some edible mushrooms (Basidiomycetes), Flavour Fragr. ; Zawirska-Wojtasiak, R.; Wasowicz, E., Application of headspace - solid phase microextraction and multivariate analysis for plant oils differentiation, Food Chem., 83, 2003, 515-522. ass: Semi-standard non-polar; Column length: 2 m; Column type: Packed; Heat rate: 10 K/min; Start T: 25 C; CAS no: 71363; Active phase: Apiezon L; Substrate: Chromosorb G-AW-DMCS; Data type: Normal alkane RI; Authors: Dahlmann, G.; Koser, H.J.K. Notice that a tetrahedral molecule such as \(\ce{CCl_4}\) is nonpolar Figure (\(\PageIndex{1}\). ; Goodner, K.L., Aroma active components in aqueous kiwi fruit essence and kiwi fruit puree by GC-MS and multidimensional GC/GC-O, J. Agric. case polar includes both neutral and charged groups that are water soluble. ; Wills, M.T., Speciation of the volatile organic compounds (VOCs) in solventborne aerosol coatings by solid phase microextraction-gas chromatography, J. ), Revista CENIC Ciencias Quimicas, 33(3), 2002, 115-119. class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Description: 35C(5min) =>5C/min =>140C =>15C/min =>250C; CAS no: 71363; Active phase: HP-5; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Thierry, A.; Maillard, M.-B. Polar "In chemistry, polarity is a separation of electric charge leading to a molecule or its chemical groups having an electric dipole or multipole moment. ; Shaw, K.J., Volatile components from the roots of Acacia pulchella R.Br. They share all electron pairs. Each chlorine atom is situated around the central carbon atom. ; 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. Chromatogr., 11, 1963, 463-471. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 35 C; End T: 195 C; End time: 90 min; CAS no: 71363; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Chung, H.Y., Volatile flavor components in red fermented soybean (Glycine max) curds, J. Agric. ; Neto, M.A.S. Nauk SSSR Ser. ; Kim, H.; Cadwallader, K.R., Aroma-active compounds in Kimchi during fermentation, J. Agric. Chromatogr., 101, 1974, 103-123. umn class: Standard non-polar; Column length: 2 m; Column type: Packed; CAS no: 71363; Active phase: SE-30; Substrate: Chromosrb G; Data type: Kovats RI; Authors: Moffat, A.C.; Stead, A.H.; Smalldon, K.W., Optimum use of paper, thin-layer and gas-liquid chromatography for the identification of basic drugs. ; Dimouro A.; Alspach P.A. Brew., 108(1), 2002, 68-72. ass: Standard polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 50 C; End T: 200 C; CAS no: 71363; Active phase: CP-Wax 52CB; Carrier gas: H2; Data type: Linear RI; Authors: Liu, T.-T.; Yang, T.-S.; Wu, C.-M., Changes of volatiles in soy sauce-stewed pork during cold storage and reheating, J. Sci. Information on this page: Kovats' RI, non-polar column, custom temperature program . Food Res. ), 50(10), 1995, 937-944. class: Standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Description: 3 min at 5 C; 5 - 50 C at 3 deg/min; 50 - 220 C at 5 deg/min; CAS no: 71363; Active phase: DB-1; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Ciccioli, P.; Brancaleoni, E.; Cecinato, A.; Sparapani, R.; Frattoni, M., Identification and determination of biogenic and anthropogenic volatile organic compounds in forest areas of Northern and Southern Europe and a remote site of the Himalaya region by high-resolution gas chromatography-mass spectrometry, J. Food Chem., 49, 2001, 5929-5933. class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Description: -30C(1min)=>100C/min=>40C(4min)=>2C/min=>90C=>4C/min=>130C=>8C/min=>250C; CAS no: 71363; Active phase: BPX-5; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: van Ruth, S.M. 25 Jun. ; Kuz'menko, T.E. Chromatogr., 319, 1985, 131-142. umn class: Standard polar; Column type: Capillary; CAS no: 71363; Active phase: BP-20; Data type: Kovats RI; Authors: SGE, Guide to GC column selection, 2005. umn class: Standard polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Start T: 100 C; CAS no: 71363; Active phase: OV-351; Carrier gas: N2; Data type: Kovats RI; Authors: Haken, J.K.; Korhonen, I.O.O., Gas chromatography of homologous esters. Chromatogr., 26(2), 2008, 212-222. ass: Semi-standard non-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: 2 min; CAS no: 71363; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Shimoda, M.; Shibamoto, T.; Noble, A.C., Evaluation of heaspace volatiles of Cabernet Sauvignon wines sampled by an on-column method, J. Agric. ; Kuz'menko, T.E. Sci., 9, 1971, 241-244. umn class: Standard non-polar; Column length: 2 m; Column type: Packed; Start T: 100 C; CAS no: 71363; Active phase: SE-30; Substrate: Gaschrom Q; Data type: Kovats RI; Authors: Winskowski, J., Gaschromatographische Identifizierung von Stoffen anhand von Indexziffem und unterschiedlichen Detektoren, Chromatographia, 17(3), 1983, 160-165. ass: Standard non-polar; Column diameter: 0.5 mm; Column length: 50 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 70 C; End T: 170 C; End time: 5 min; Start time: 2 min; CAS no: 71363; Active phase: SE-30; Carrier gas: He; Data type: Kovats RI; Authors: Greenberg, M.J., Characterization of poultry byproduct meal flavor volatiles, J. Agric. azul, J. Agric. CH2O is a polar molecule. natalensis Berger, J. Agric. Food Agric., 79, 1999, 243-248. 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: 71363; 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. J. Enol. Dairy Sci., 85(6), 2002, 1362-1369. 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; End time: 10 min; Start time: 10 min; CAS no: 71363; Active phase: TC-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Suhardi, S.; Suzuki, M.; Yoshida, K.; Muto, T.; Fujita, A.; Watanbe, N., Changes in the volatile compounds and in the chemical and physical properties of snake fruit (Salacca edulis Reinw) Cv. Examine the arrows in the Lewis dot structure. There is always a difference between the electronegativity of its atoms. Lancelot) enzyme extract and linoleic acid or linolenic acid, J. Agric. 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. ; Shaw, P.E., Characterization of the aromatic profile in aqueous essence and fruit juice of yellow passion fruit (Passiflora edulis Sims F. Flavicarpa degner) by GC-MS and GC/O, J. Agric. Chem. ; Yook, H.S. ; 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. ; Gavrilenko, M.A., Effect of thermal treatment of poly(ethylene glycol) modified with europium acetylacetonate on its chromatographic properties, Russ. Soc. Food Chem., 54, 2006, 8480-8490. 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: 240 C; End time: 10 min; Start time: 5 min; CAS no: 71363; Active phase: Stabilwax; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Cros, S.; Vandanjon, L.; Jaouen, P.; Bourseau, P., Processing of Industrial Mussel Cooking Juices by Reverse Osmotis: Pollution Abatement and Aromas Recovery, 2007. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 80 C; End T: 240 C; Start time: 5 min; CAS no: 71363; Active phase: TC-Wax; Data type: Normal alkane RI; Authors: Shuichi, H.; Masazumi, N.; Hiromu, K.; Kiyoshi, F., Comparison of volatile compounds berween the crude drugs, Onji-tsutsu and Onji-niki, Nippon nogei kagaku kaishi, 70(2), 1996, 151-160. 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: Echeverria, G.; Correa, E.; Ruiz-Altisent, M.; Graell, J.; Puy, J.; Lopez, L., Characterization of Fuji apples from different harvest dates and storage conditions from measurements of volatiles by gas chromatography and electronic nose, J. Agric. ; Samusenko, A.L., Gas-chromatographic method of evaluation of n-alkanol ability for self-association in pure liquid, Russ. III. Anal. Food Chem., 50, 2002, 4878-4884. ass: Standard polar; Column diameter: 0.25 mm; Column length: 90 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 35 C; End T: 220 C; End time: 30 min; Start time: 20 min; CAS no: 71363; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Girard, B.; Lau, O.L., Effect of maturity and storage on quality and volatile production of 'Jonagold' apples, Food Res. ; Kim, K.S. Begin drawing the Lewis dot structure of the molecule. ; Larsen, L.M. This allows n-pentane to be liquid at room temperature. ; Oraguzie, N.C., Heriability and genetic and phenotypic correlations of apple (Malus x domestica) fruit volatiles in a genetically diverse breeding population, J. Agric. You should memorize which molecular shapes are symmetrical, and thus non-polar assuming that the dipoles cancel, and which one's are not. Food Chem., 37(2), 1989, 418-420. ass: Standard polar; Column diameter: 0.50 mm; Column length: 31 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 40 C; End T: 200 C; CAS no: 71363; Active phase: Carbowax 20M; Carrier gas: Helium; Data type: Normal alkane RI; Authors: Labropoulos, A.E. A compound is referred to as non-polar if the charge distribution becomes evenly distributed over different regions of the molecule. Akad. Res. PSR Zinat. 9-Fluorenone is more likely to dissolve in the diethyl ether in the aqueous phase than because it is a polar compound. Benzene - C 6 H 6. By . Chromatogr., 319, 1985, 131-142. umn class: Standard non-polar; Column diameter: 0.33 mm; Column length: 25 m; Column type: Capillary; Start T: 120 C; CAS no: 71363; Active phase: SE-30; Data type: Kovats RI; Authors: Haken, J.K.; Korhonen, I.O.O., Gas chromatography of homologous esters. Did you like it? Electron withdrawing atoms with draw electron density away from less electronegative atoms. Food Chem., 38, 1990, 2042-2044. umn class: Standard polar; Column diameter: 0.75 mm; Column length: 60 m; Column type: Capillary; CAS no: 71363; 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. VII. (Engl. Food Chem., 47, 1999, 3702-3705. ass: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 40 C; End T: 230 C; End time: 15 min; Start time: 2 min; CAS no: 71363; Active phase: DB-Wax; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Fan, W.; Qian, M.C., Identification of aroma compounds in Chinese 'Yanghe Daqu' liquor by normal phase chromatography fractionation followed by gas chromatography/olfactometry, Flavour Fragr. ), 49(2), 2000, 317-320. 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. Solution for covalent bonds which do not share their electrons equally are called a. polar b. electrolytes c. nonpolar d. ionic bonds Skip to main content . PubChem is a registered trademark of the National Library of Medicine is a registered trademark of the National Library of Medicine These compounds have polar heads (-OH) that can form hydrogen bonds with water and a nonpolar tail. Technol., 43, 2007, 55-66. 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: 71363; Active phase: DB-Wax; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Kim. ; Franco, M.R.B. Comparison of different fibers, J. Chromatogr. Nonpolar molecules consist of identical sides around the central atom and therefore have no unshared pairs of electrons. Food Chem., 49, 2001, 1904-1908. 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.; Buchanan, D.A. 3 Steps to Determine if a Molecule is Polar Or Nonpolar 1. ; Farmer, L.J., Identification of major volatile odor compounds in frankfurters, J. Agric. Food Chem., 57(17), 2009, 7944-7952. class: Standard polar; Column diameter: 0.18 mm; Column length: 20 m; Column type: Capillary; Description: 35 0C (1 min) ^ 2/9 0C/min -> 100 0C ^ 8 0C/min -> 200 0C (5 min); CAS no: 71363; Active phase: DB-Wax; Carrier gas: Helium; Phase thickness: 0.18 um; Data type: Normal alkane RI; Authors: Rowan, D.D. Food Chem., 22(5), 1974, 827-831. 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: 71363; Active phase: Carbowax 20M; Carrier gas: He; Data type: Normal alkane RI; Authors: Kinlin, T.E. Food Res. A, 858, 1999, 187-199. ass: Standard non-polar; Column type: Capillary; CAS no: 71363; Active phase: Methyl Silicone; Data type: Normal alkane RI; Authors: Feng, H.; Mu, L.-L., Quantitative structure-retention relationships for alkane and its derivatives based on electrotopological state index and molecular shape index, Chem. ; Habu, T.; Flath, R.A.; Mon, T.R. ; Misharina, T.A., Characterization of the selectivity of stationary phases from the partial molar free energies of solution of standards, Chromatographia, 10(11), 1977, 658-660. umn class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Start T: 60 C; CAS no: 71363; Active phase: Squalane; Data type: Kovats RI; Authors: Ryba, M., Unlosliche Restfilme er stationaren Flussigkeit in gas-chromatographischen Glaskapillaren, Chromatographia, 9(3), 1976, 105-112. umn class: Semi-standard non-polar; Column length: 2.1 m; Column type: Packed; Start T: 130 C; CAS no: 71363; Active phase: Apiezon M; Carrier gas: N2; Substrate: Chromosorb W; Data type: Kovats RI; Authors: Golovnya, R.V. Chromatogr., 454, 1988, 129-143. umn class: Standard non-polar; Column length: 1.5 m; Column type: Packed; Start T: 120 C; CAS no: 71363; Active phase: OV-1; Carrier gas: N2; Data type: Kovats RI; Authors: Betts, T.J., Triangular Characterization of Gas Chromatographic Stationary Phases, J. Chromatogr., 472, 1989, 129-143. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 12 K/min; Start T: 0 C; End T: 250 C; Start time: 12 min; CAS no: 71363; Active phase: SE-54; Carrier gas: He; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Rembold, H.; Wallner, P.; Nitz, S.; Kollmannsberger, H.; Drawert, F., Volatile components of chickpea (Cicer arietinum L.) seed, J. Agric. Food Chem., 34(1), 1986, 140-144. https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:28885, ACD/Labs Percepta Platform - PhysChem Module, US Environmental Protection Agencys EPISuite, Compounds with the same molecular formula, Search Google for structures with same skeleton, 242-244 F / 760 mmHg (116.6667-117.7778 C / 760 mmHg), 243 F / 760 mmHg (117.2222 C / 760 mmHg). ; Kuz'menko, T.e. A nonpolar molecule has no separation of electric charges or difference in electronegativity. umn class: Standard non-polar; Column length: 0.25 m; Column type: Packed; Start T: 120 C; CAS no: 71363; Active phase: SE-30; Carrier gas: He; Substrate: Gas Chrom Q (100-120 mesh); Data type: Kovats RI; Authors: Kowalski, W.J., Free radical crosslinking of the gas chromatographic stationary phase containing europium chelates, Chromatographia, 34(5-8), 1992, 266-268. umn class: Standard non-polar; Column type: Capillary; CAS no: 71363; Active phase: BP-1; Data type: Kovats RI; Authors: SGE, Guide to GC column selection, 2005. umn class: Standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Start T: 60 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. 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. ; Ratcliffe, N.M.; Spencer-Phillips, P.T.N., Identification of volatiles generated by potato tubers (Solanum tuberosum CV: Maris Piper) infected by Erwinia carotovora, Bacillus polymyxa and Arthrobacter sp., Plant Pathol., 48, 1999, 345-351. ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 100 C; End T: 260 C; CAS no: 71363; Active phase: RTX-1; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Restek, Restek International, 1999 Product Guide, 1(1), 1999, 578-591, In original 578-591. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 45 C; End T: 340 C; CAS no: 71363; Active phase: DB-1HT; Carrier gas: He; Data type: Normal alkane RI; Authors: Komarek, K.; Pitthard, V.; Kostrubanicova, E.; Skvarenina, S.; Hoffmann, J., Capillary gas chromatography-mass spectrometry of lower oxyethylenated aliphatic alcohols, J. Chromatogr. You may need a periodic table for this. Ionic bonds, like those in table salt (NaCl), are due to electrostatic attractive forces between their positive (Na+) and negative charged (Cl-) ions. lar nn-p-lr : not polar especially : consisting of molecules not having a dipole a nonpolar solvent Example Sentences Recent Examples on the Web The remaining nonpolar molecules in food - like fats and minerals - are not heated by the microwaves themselves. ; Samusenko, A.L., Gas-chromatographic method of evaluation of n-alkanol ability for self-association in pure liquid, Russ. Food Chem., 33(2), 1985, 249-254. ass: Standard non-polar; Column diameter: 0.762 mm; Column length: 600 ft; Column type: Capillary; Heat rate: 1 K/min; Start T: 0 C; End T: 230 C; CAS no: 71363; Active phase: OV-1; Carrier gas: N2; Data type: Normal alkane RI; Authors: Schreyen, L.; Dirinck, P.; Sandra, P.; Schamp, N., Flavor analysis of quince, J. Agric. ; Kim, J.-S., Analysis of volatile components in frozen and dried scallops (Patinopecten yessoensis) by gas chromatography/mass spectrometry, Food Res. A, 903, 2000, 117-143. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 35 C; End T: 270 C; Start time: 1 min; CAS no: 71363; Active phase: DB-1; Carrier gas: He; Phase thickness: 5 um; Data type: Linear RI; Authors: Bartelt, R.J., Calibration of a commercial solid-phase microextraction device for measuring headspace concentrations of organic volatiles, Anal. ), 49(2), 2000, 317-320. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 25 m; Column type: Capillary; Start T: 66 C; CAS no: 71363; Active phase: SE-30; Carrier gas: He; Phase thickness: 1 um; Data type: Kovats RI; Authors: Golovnya, R.V. III. Here are the steps to help you determine if a molecule is polar or nonpolar. What is the molar mass of ammonium carbonate (NH4)2CO3)? Retention indices of amines in some polar and unpolar stationary phases, Latv. 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. Since glycine lacks an R group it is placed into the "nonpolar" category for the lack of better placement.
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