Peak fronting in reversed-phase high-performance liquid chromatography: a study of the chromatographic behavior of oxycodone hydrochloride von Broglé, Kevin, Ornaf, Raphael M., Wu, David, Palermo, Philip J.

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N′-Nitrosonornicotine in Tobacco von Hoffmann, Dietrich, Hecht, Stephen S., Ornaf, Raphael M., Wynder, Ernst L.

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Determination of N'-nitrosonornicotine in tobacco by high speed liquid chromatography von Hecht, Stephen S, Ornaf, Raphael M, Hoffmann, Dietrich

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A procedure for “iodolactamization” von Knapp, Spencer, Rodriques, Karen E., Levorse, Anthony T., Ornaf, Raphael M.

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Synthesis of conduritol A from benzoquinone using 9-[(benzyloxy)methoxy]anthracene as a protecting and directing group von KNAPP, S, ORNAF, R. M, RODRIQUES, K. E

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Tobacco-Specific Nitrosamines: Formation From Nicotine In Vitro and During Tobacco Curing and Carcinogenicity in Strain A Mice von Hecht, Stephen S., Chen, Chi-hong B., Hirota, Norio, Ornaf, Raphael M., Tso, T. C., Hoffmann, Dietrich

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Chemical Studies on Tobacco Smoke. XXXIII. N'-Nitrosonornicotine in Tobacco: Analysis of Possible Contributing Factors and Biologic Implications von Hecht, Stephen S., Ornaf, Raphael M., Hoffman, Dietrich

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Reaction of nicotine and sodium nitrite: formation of nitrosamines and fragmentation of the pyrrolidine ring von Hecht, S S, Chen, C B, Ornaf, R M, Jacobs, E, Adams, J D, Hoffmann, D

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Ring expansion of ketones to 1,2-keto-thioketals von Knapp, Spencer, Trope, Adrea F., Ornaf, Raphael M.

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Chemical Studies on Tobacco Smoke. XXXIII. N'-Nitrosonornicotine in Tobacco: Analysis of Possible Contributing Factors and Biologic Implications2 von Hecht, Stephen S., Ornaf, Raphael M., Hoffman, Dietrich

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Tobacco-Specific Nitrosamines: Formation From Nicotine In Vitro and During Tobacco Curing and Carcinogenicity in Strain A Mice 2 3 von Hecht, Stephen S., Chen, Chi-hong B., Hirota, Norio, Ornaf, Raphael M., Tso, T. C., Hoffmann, Dietrich

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