Raphael M. Ornaf

693 total citations
12 papers, 550 citations indexed

About

Raphael M. Ornaf is a scholar working on Organic Chemistry, Spectroscopy and Plant Science. According to data from OpenAlex, Raphael M. Ornaf has authored 12 papers receiving a total of 550 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Organic Chemistry, 3 papers in Spectroscopy and 3 papers in Plant Science. Recurrent topics in Raphael M. Ornaf's work include Synthesis and Biological Evaluation (5 papers), Analytical Chemistry and Chromatography (2 papers) and Bioactive Compounds and Antitumor Agents (1 paper). Raphael M. Ornaf is often cited by papers focused on Synthesis and Biological Evaluation (5 papers), Analytical Chemistry and Chromatography (2 papers) and Bioactive Compounds and Antitumor Agents (1 paper). Raphael M. Ornaf collaborates with scholars based in United States. Raphael M. Ornaf's co-authors include Stephen S. Hecht, Dietrich Hoffmann, T. C. Tso, Spencer Knapp, Ernst L. Wynder, Norio Hirota, D. Hoffmann, John Adams, Maofeng Dong and David Wu and has published in prestigious journals such as Science, Journal of the American Chemical Society and Analytical Chemistry.

In The Last Decade

Raphael M. Ornaf

12 papers receiving 503 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Raphael M. Ornaf United States	11	177	170	99	82	75	12	550
D. Manson United Kingdom	14	220 1.2×	111 0.7×	40 0.4×	123 1.5×	62 0.8×	29	579
George J. Traiger United States	18	166 0.9×	54 0.3×	36 0.4×	128 1.6×	72 1.0×	34	816
Rudolf Preußmann Germany	14	167 0.9×	48 0.3×	119 1.2×	124 1.5×	139 1.9×	26	590
Michael Eagen United States	6	112 0.6×	62 0.4×	74 0.7×	59 0.7×	63 0.8×	8	490
L. A. Damani United Kingdom	14	180 1.0×	111 0.7×	40 0.4×	51 0.6×	31 0.4×	54	618
Wolfgang Zwickenpflug Germany	11	152 0.9×	81 0.5×	64 0.6×	103 1.3×	55 0.7×	21	404
James Loo United States	7	150 0.8×	75 0.4×	48 0.5×	51 0.6×	59 0.8×	9	392
Ziping Bao United States	8	233 1.3×	62 0.4×	38 0.4×	101 1.2×	29 0.4×	12	516
Cathaline den Besten Netherlands	17	346 2.0×	47 0.3×	85 0.9×	59 0.7×	75 1.0×	22	695
Patricia J. Harwood United States	8	161 0.9×	101 0.6×	72 0.7×	24 0.3×	21 0.3×	10	547

Countries citing papers authored by Raphael M. Ornaf

Since Specialization

Citations

This map shows the geographic impact of Raphael M. Ornaf's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Raphael M. Ornaf with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Raphael M. Ornaf more than expected).

Fields of papers citing papers by Raphael M. Ornaf

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Raphael M. Ornaf. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Raphael M. Ornaf. The network helps show where Raphael M. Ornaf may publish in the future.

Co-authorship network of co-authors of Raphael M. Ornaf

This figure shows the co-authorship network connecting the top 25 collaborators of Raphael M. Ornaf. A scholar is included among the top collaborators of Raphael M. Ornaf based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Raphael M. Ornaf. Raphael M. Ornaf is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

12 of 12 papers shown

Ornaf, Raphael M., et al.. (1999). Peak fronting in reversed-phase high-performance liquid chromatography: a study of the chromatographic behavior of oxycodone hydrochloride. Journal of Pharmaceutical and Biomedical Analysis. 19(5). 669–678. 20 indexed citations

Knapp, Spencer, et al.. (1985). A procedure for “iodolactamization”. Tetrahedron Letters. 26(15). 1803–1806. 39 indexed citations

Knapp, Spencer, et al.. (1983). Synthesis of conduritol a from benzoquinone using 9-benzyloxymethoxyanthracene as a protecting and directing group. Journal of the American Chemical Society. 105(16). 5494–5495. 34 indexed citations

Knapp, Spencer, et al.. (1980). Ring expansion of ketones to 1,2-keto-thioketals. Tetrahedron Letters. 21(45). 4301–4304. 15 indexed citations

Hecht, Stephen S., et al.. (1978). Chemical studies on tobacco smoke LVI. Tobacco specific nitrosamines: origins, carcinogenicity and metabolism.. PubMed. 395–413. 15 indexed citations

Hecht, Stephen S., et al.. (1978). Chemical studies on tobacco smoke. 52. Reaction of nicotine and sodium nitrite: formation of nitrosamines and fragmentation of the pyrrolidine ring. The Journal of Organic Chemistry. 43(1). 72–76. 58 indexed citations

Hecht, Stephen S., et al.. (1978). Tobacco-Specific Nitrosamines: Formation From Nicotine In Vitro and During Tobacco Curing and Carcinogenicity in Strain A Mice 2 3. JNCI Journal of the National Cancer Institute. 60(4). 819–824. 126 indexed citations

Hecht, Stephen S., et al.. (1977). Chemical Studies on Tobacco Smoke: LI: Studies on Non-Volatile Nitrosamines in Tobacco. Beiträge zur Tabakforschung international. 9(1). 1–6. 46 indexed citations

Hecht, Stephen S., et al.. (1975). Chemical Studies on Tobacco Smoke. XXXIII. N'-Nitrosonornicotine in Tobacco: Analysis of Possible Contributing Factors and Biologic Implications2. JNCI Journal of the National Cancer Institute. 54(5). 1237–1244. 66 indexed citations

10.

Hecht, Stephen S., Raphael M. Ornaf, & Dietrich Hoffmann. (1975). Determination of N'-nitrosonornicotine in tobacco by high speed liquid chromatography. Analytical Chemistry. 47(12). 2046–2048. 35 indexed citations

11.

Hoffmann, Dietrich, Stephen S. Hecht, Raphael M. Ornaf, & Ernst L. Wynder. (1974). N ′-Nitrosonornicotine in Tobacco. Science. 186(4160). 265–267. 94 indexed citations

12.

Hoffmann, David L., Stephen S. Hecht, Raphael M. Ornaf, & E. L. Wynder. (1974). N'-nitro-sonornicotine in tobacco.. 186. 2 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact