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Author:Hoffmann

62 matching references were found.

Janecke-Heidelberg, E.; Hoffmann, A., The thiourea + ammonia + water system, Z. Elektrochem. Angew. Phys. Chem., 1932, 38, 880-3. [all data]

Semmler, F.W.; Hoffmann, A., Ber. Dtsch. Chem. Ges., 1907, 40, 3521. [all data]

Semmler, F.W.; Hoffmann, A., Ber. Dtsch. Chem. Ges., 1904, 37, 234. [all data]

Wahl, H.G.; Hoffmann, A.; Luft, D.; Liebich, H.M., Analysis of volatile organic compounds in human urine by headspace gas chromatography-mass spectrometry with a multipurpose sampler, J. Chromatogr. A, 1999, 847, 1-2, 117-125, https://doi.org/10.1016/S0021-9673(99)00017-5 . [all data]

Wahl, H.G.; Liebich, H.M.; Hoffmann, A., Identification of fatty acid methyl esters as minor components of fish oil by multidimensional GC-MSD: New furan fatty acids, J. Hi. Res. Chromatogr., 1994, 17, 5, 308-311, https://doi.org/10.1002/jhrc.1240170505 . [all data]

Wahl, H.G.; Hoffmann, A.; Häring, H.-U.; Liebich, H.M., Identification of plasticizers in medical products by a combined direct thermodesorption-cooled injection system and gas chromatography-mass spectrometry, J. Chromatogr. A, 1999, 847, 1-2, 1-7, https://doi.org/10.1016/S0021-9673(99)00138-7 . [all data]

Hoffmann, A.; Heiden, A., Flavor profiling of different olive oils with rancidity-monitoring by thermal extraction GC/MS, Proceedings, 23rd ISCC; CD-ROM, 2000, retrieved from http://www.richrom.com/assets/CD23PDF. [all data]

Wahl, H.G.; Chrzanowski, A.; Liebich, H.M.; Luft, D.; Hoffmann, A.; Rogies, F., Quantification of 4-heptanone in urine by headspace GC-MS analysis using a multipurpose sampler, 1995, retrieved from http://www.gerstel.com/an-1995-01.pdf. [all data]

Wahl, H.G.; Chrzanowski, A.; Luft, D.; Häring, H.-U.; Hoffmann, A., The use of a multipurpose sample for headspace GC-MS analysis of volatile organic compounds in human urine and plasma, 1996, retrieved from http://www.gerstel.com/an-1996-05.pdf. [all data]

Wahl, H.G.; Chrzanowski, A.; Liebich, H.M.; Luft, D.; Hoffmann, A.; Rogies, F., Quantification of 4-heptanone in urine by headspace GC-MS analysis using a multipurpose sampler, 1995, retrieved from http://www.gerstel.com/an-1995-01.pdf. [all data]

Wahl, H.G.; Chrzanowski, A.; Liebich, H.M.; Hoffmann, A., Identification of furna fatty acids in nutritional oils and fats by multi-dimensional GC-MSD, 1994, retrieved from http://www.gerstel.com/an-1994-06.pdf. [all data]

MacNamara, K.; Hoffmann, A., Gas chromatographic technolohy in analysis of distilled spirits in Instrumental Methods in Food and Beverage Ananlysis, Wetzel, D.; Charalambous, G., ed(s)., Elsivier, 1998, 303-327. [all data]

Schoch, E.P.; Hoffmann, A.E.; Mayfield, F.D., Solubility of methane in n-hexane, Ind. Eng. Chem., 1941, 33, 688-91. [all data]

Schoch, E.P.; Hoffmann, A.E.; Mayfield, F.D., Solubility of methane in cyclohexane, Ind. Eng. Chem., 1940, 32, 1351-1353. [all data]

Schoch, E.P.; Hoffmann, A.E.; Kasperik, A.S.; Lightfoot, J.H.; Mayfield, F.D., Solubility of methane in benzene, Ind. Eng. Chem., 1940, 32, 788-791. [all data]

Shoch, E.P.; Hoffmann, A.E.; Mayfield, F.D., Solubility of methane in cyclohexane, Ind. Eng. Chem., 1940, 32, 1351-3. [all data]

Hoffmann, A.E., P-v-t-x relations of the methane + n-hexane system, Ph.D. Dissertation, Univ. of Texas, Austin, TX, 1940. [all data]

Hoffmann, A.W., Researches Regarding Molecular Constitution of the Volatile Org. Bases, J. Chem. Soc., 1850, 3, 279. [all data]

Hoffmann, D.; Rathkamp, G., Quantitative determination of nitrobenzenes in cigarette smoke, Anal. Chem., 1970, 42, 13, 1643-1647, https://doi.org/10.1021/ac60295a049 . [all data]

LaVoie, E.J.; Shigematsu, A.; Tucciarone, P.L.; Adams, J.D.; Hoffmann, D., Comparison of the steam-volatile components of commercial cigarette, pipe, and chewing tobaccos, J. Agric. Food Chem., 1985, 33, 5, 876-879, https://doi.org/10.1021/jf00065a027 . [all data]

LaVoie, E.J.; Tucciarone, P.; Kagan, M.; Adams, J.D.; Hoffmann, D., Analyses of steam distillates and aqueous extracts of smokeless tobacco, J. Agric. Food Chem., 1989, 37, 1, 154-157, https://doi.org/10.1021/jf00085a036 . [all data]

Melikian, A.A.; Sun, P.; Prokopczyk, B.; El-Bayoumy, K.; Hoffmann, D.; Wang, X.; Waggoner, S., Identification of benzo[a]pyrene metabolites in cervical mucus and DNA adducts in cervical tissues in humans by gas chromatography-mass spectrometry, Cancer Lett., 1999, 146, 2, 127-134, https://doi.org/10.1016/S0304-3835(99)00203-7 . [all data]

Hoffmann, D.; Rathkamp, G., Quantitative determination of 1-alkylindoles in cigarette smoke, Anal. Chem., 1970, 42, 3, 366-370, https://doi.org/10.1021/ac60285a023 . [all data]

Hoffmann, F.; Langbeck, K., Studies on solubility, Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1905, 51, 385-434. [all data]

Hoffmann, F.W.; Weiss, J.M., J. Am. Chem. Soc., 1957, 79, 4759. [all data]

Hoffmann, F.W.; Ess, R.J.; Simmons, T.C.; Hanzel, R.S., The Desulfurization of Mercaptans with Trialkyl Phosphites, J. Am. Chem. Soc., 1956, 78, 6414. [all data]

Hoffmann, F.W., J. Org. Chem., 1950, 15, 425. [all data]

Hoffmann, F.W., Aliphatic Fluorides. I. «omega»,«omega»'-Difluoroalkanes, J. Org. Chem., 1949, 14, 105. [all data]

Buermann, L.; Burdenski, S.; Feltgen, R.; Hoffmann, G., Chemi-ionisation of Xe in thermal collisions with He*(21S) and He*(23S) metastable atoms, J. Phys. B:, 1987, 20, 2809-2823. [all data]

Eucken, A.; Hoffmann, G., The specific heats of gases at middle and high temperatures: II the specific heat of chlorine between -30 c and +180 c., Z. Phys. Chem., Abt. B, 1929, 5, 442. [all data]

Hoffmann, G., 1-Octen-3-ol and its relatino to other oxidative cleavage products from esters of linoleic acid, J. Amer. Oil Chem. Soc., 1962, 39, 10, 439-444, https://doi.org/10.1007/BF02637660 . [all data]

Hoffmann, G.; Aramaki, S.; Blum-Hoffmann, E.; Nyhan, W.L.; Sweetman, L., Quantitative analysis for organic acids in biological samples: batch isolation followed by gas chromatographic-mass spectrometric analysis, Clin. Chem., 1989, 35, 4, 587-595. [all data]

Anderson, J.E.; Bettels, B.R.; Hoffmann, H.M.R.; Pauluth, D.; Hellmann, S.; Beckhaus, H.D.; Ruchardt, C., Two-fold rotational barriers in 1,1,2,2-tetrasubstituted ethanes. A dynamic NMR and molecular mechanics study of some highly-branched saturated hydrocarbons, Tetrahedron, 1988, 44, 3701. [all data]

Hoffmann, H.M.R.; Haase, K., Synthesis, 1981, 9, 715-9. [all data]

Geiseler, G.; Quitzsch, K.; Hoffmann, J.; Moeschler, W., Z. Phys. Chem. (Leipzig), 1962, 200, 391. [all data]

Geiseler, G.; Hoffmann, J., Z. Phys. Chem. (Frankfurt), 1968, 57, 318. [all data]

Geiseler, G.; Hoffmann, J., Kinetics and mechanism of the thermal decomposition of isomeric azopropanes, Z. Phys. Chem. (Munich), 1968, 57, 318-30. [all data]

Komárek, K.; Richter, P.; Hoffmann, J., Capillary gas chromatography of n-butyl and isobutyl-, n-amyl and isoamyl polyethylene glycol ethers and their derivatives, J. Chromatogr. A, 1998, 800, 2, 305-315, https://doi.org/10.1016/S0021-9673(97)01144-8 . [all data]

Komárek, K.; Pitthard, V.; Kostrubanicová, E.; Skvarenina, S.; Hoffmann, J., Capillary gas chromatography-mass spectrometry of lower oxyethylenated aliphatic alcohols, J. Chromatogr. A, 1997, 773, 1-2, 219-226, https://doi.org/10.1016/S0021-9673(97)00275-6 . [all data]

Federmann, F.; Hoffmann, K.; Quaas, N.; Toennies, J.P., Spectroscopy of extremely cold silver clusters in helium droplets, Eur. Phys. J. D, 1999, 9, 1, 11, https://doi.org/10.1007/PL00010922 . [all data]

Hoffmann, K.A.; Arnold, H., Chem. Ber., 1906, 39, 339. [all data]

Hoffmann, M.; Rother, K., The Dependence of the Viscosity of Low-molecular Weight Nonpolar Liquids on Temperature, Pressure, and Concentration, Rheol. Acta, 1962, 2, 164-174. [all data]

Ohta, T.; Cicoira, F.; Doppelt, P.; Beitone, L.; Hoffmann, P., Static Vapor Pressure Measurement of Low Volatility Precursors for Molecular Vapor Deposition Below Ambient Temperature, Chem. Vap. Deposition, 2001, 7, 1, 33-37, https://doi.org/10.1002/1521-3862(200101)7:1<33::AID-CVDE33>3.0.CO;2-Y . [all data]

Trinquier, G.; Hoffmann, R., Lead monoxide. Electronic structure and bonding, J. Phys. Chem., 1984, 88, 6696-6711. [all data]

Seliskar, C.J.; Hoffmann, R.E., J. Mol. Spectrosc., 1982, 96, 146-55. [all data]

Seliskar, C.J.; Hoffmann, R.E., J. Mol. Spectrosc., 1981, 88, 30-40. [all data]

Seliskar, C.J.; Hoffmann, R.E., J. Am. Chem. Soc., 1977, 99, 7072-3. [all data]

Hoffmann, R.W.; Schuttler, R.; Schafer, W.; Schweig, A., Methylen-norbornadien, ein bicycloheptafulven, Angew. Chem., 1972, 84, 533. [all data]

Reetz, M.T.; Hoffmann, R.W.; Schafer, W.; Schweig, A., Methylenebicyclo [4.2.1]nona-2,4,7-triene, Angew. Chem. Int. Ed. Engl., 1973, 12, 81. [all data]

Schafer, W.; Schmidt, H.; Schweig, A.; Hoffmann, R.W.; Kurz, H., Evidence for strong nonbonded n/«pi» interaction in bicyclo[4.2.1]nona-2,4,7-trien-9-one, Tetrahedron Lett., 1974, 23, 1953. [all data]

Martin, H.-D.; Heller, C.; Haider, R.; Hoffmann, R.W.; Becherer, J.; Kurz, H.R., Vertikale oder nicht-vertikale stabilisierung im Pentacyclo- [4.3.0.02,4.03,8.05,7]non-9-yl-Kation? Das 9-methylenpentacyclononan-radikalkation, Chem. Ber., 1977, 110, 3010. [all data]

Martin, H.-D.; Mayer, B.; Hoffmann, R.W.; Riemann, A.; Rademacher, P., PE- und 13C-NMR-spektroskopische untersuchungen zur homokonjugation in 7-alkylidennorbornadienen, Chem. Ber., 1985, 118, 2514. [all data]

Reisenauer, H.P.; Maier, G.; Riemann, A.; Hoffmann, R.W., Cyclopropenyliden, Angew. Chem., 1984, 96, 8, 596, https://doi.org/10.1002/ange.19840960811 . [all data]

Engel, W.; Hoffmann, T.; Schieberle, P., Characterization of 3,4-dihydroxy-3-hexen-2,5-dione as the first open-chain caramel-like smelling flavor compound, Eur. Food Res. Technol., 2001, 213, 2, 104-106, https://doi.org/10.1007/s002170100351 . [all data]

Schrader, W.; Geiger, J.; Hoffmann, T.; Kockow, D.; Korte, E.-H., Application of gas chromatography-cryocondensation-Fourier transform infrared spectroscopy and gas chromatography-mass spectrometry to the identification of gas phase reaction products from the «alpha»-pinene/ozone reaction, J. Chromatogr. A, 1999, 864, 2, 299-314, https://doi.org/10.1016/S0021-9673(99)01033-X . [all data]

Holzke, C.; Hoffmann, T.; Jaeger, L.; Koppmann, R.; Zimmer, W., Diurnal and seasonal variation of monoterpene and sesquiterpene emissions from Scots pine (Pinus sylvestris L.), Atmos. Environ., 2006, 40, 17, 3174-3185, https://doi.org/10.1016/j.atmosenv.2006.01.039 . [all data]

Roth, W.R.; Kirmse, W.; Hoffmann, W.; Lennartz, H.W., Heats of hydrogenation. III. Effect of fluoro substituents on the thermal rearrangement of cyclopropane systems, Chem. Ber., 1982, 115, 2508-2515. [all data]

Hoffmann, W.; Schoeneck, H.; Wanninger, W., The surface tension of areometric testing liquids from 15 c to 25 c, Z. Phys. Chem. (Munich), 1957, 11, 56-64. [all data]

Denker, M.; Parat-Wilhelms, M.; Drichelt, G.; Paucke, J.; Luger, A.; Borcherding, K.; Hoffmann, W.; Steinhart, H., Investigation of the retronasal flavour release during the consumption of coffee with additions of milk constituents by 'Oral Breath Sampling', Food Chem., 2006, 98, 2, 201-208, https://doi.org/10.1016/j.foodchem.2005.03.034 . [all data]

Parat-Wilhelms, M.; Denker, M.; Borcherding, K.; Hoffmann, W.; Luger, A.; Steinhart, H., Influence of defined milk products on the flavour of white coffee beverages using static headspace gas chromatography-mass spectrometry/olfactometry and sensory analysis, Eur. Food Res. Technol., 2005, 221, 3-4, 265-273, https://doi.org/10.1007/s00217-005-1152-1 . [all data]

Hoffmann, W.L., Riechst. Aromen, 1959, 9, 273. [all data]

Hoffmann-Buchler, M., Distribution of heavy water in conjugated phases of the triethylamine + water system, Radiochim. Acta, 1971, 16, 110. [all data]