Regina Sparrapan

1.1k total citations
32 papers, 898 citations indexed

About

Regina Sparrapan is a scholar working on Spectroscopy, Organic Chemistry and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Regina Sparrapan has authored 32 papers receiving a total of 898 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Spectroscopy, 11 papers in Organic Chemistry and 9 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Regina Sparrapan's work include Mass Spectrometry Techniques and Applications (17 papers), Analytical Chemistry and Chromatography (9 papers) and Advanced Chemical Physics Studies (9 papers). Regina Sparrapan is often cited by papers focused on Mass Spectrometry Techniques and Applications (17 papers), Analytical Chemistry and Chromatography (9 papers) and Advanced Chemical Physics Studies (9 papers). Regina Sparrapan collaborates with scholars based in Brazil, Finland and Libya. Regina Sparrapan's co-authors include Marcos N. Eberlin, Renato Haddad, Maria Anita Mendes, Tapio Kotiaho, Fábio C. Gozzo, Rodinei Augusti, Rosana M. Alberici, Adão A. Sabino, José Walkimar de M. Carneiro and Pierre M. Esteves and has published in prestigious journals such as Journal of the American Chemical Society, Environmental Science & Technology and Analytical Chemistry.

In The Last Decade

Regina Sparrapan

32 papers receiving 876 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Regina Sparrapan Brazil	16	615	210	190	165	113	32	898
David J. Burinsky United States	17	591 1.0×	114 0.5×	161 0.8×	127 0.8×	273 2.4×	36	880
Timothy Wachs United States	18	861 1.4×	328 1.6×	203 1.1×	73 0.4×	207 1.8×	31	1.2k
Leon D. Betowski United States	19	418 0.7×	106 0.5×	285 1.5×	100 0.6×	49 0.4×	41	796
Joan T. Bursey United States	14	486 0.8×	103 0.5×	119 0.6×	163 1.0×	95 0.8×	25	859
М. В. Косевич Ukraine	14	296 0.5×	127 0.6×	90 0.5×	313 1.9×	126 1.1×	77	812
Sergio C. Nanita United States	21	861 1.4×	121 0.6×	180 0.9×	112 0.7×	437 3.9×	28	1.4k
Damon B. Robb Canada	11	832 1.4×	272 1.3×	312 1.6×	54 0.3×	167 1.5×	21	1.1k
Elaine K. Fukuda United States	16	395 0.6×	61 0.3×	258 1.4×	124 0.8×	294 2.6×	32	982
Richard H. Perry United States	18	623 1.0×	207 1.0×	105 0.6×	157 1.0×	371 3.3×	32	1.2k

Countries citing papers authored by Regina Sparrapan

Since Specialization

Citations

This map shows the geographic impact of Regina Sparrapan'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 Regina Sparrapan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Regina Sparrapan more than expected).

Fields of papers citing papers by Regina Sparrapan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Regina Sparrapan. 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 Regina Sparrapan. The network helps show where Regina Sparrapan may publish in the future.

Co-authorship network of co-authors of Regina Sparrapan

This figure shows the co-authorship network connecting the top 25 collaborators of Regina Sparrapan. A scholar is included among the top collaborators of Regina Sparrapan 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 Regina Sparrapan. Regina Sparrapan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

1.

Abakerli, R. B., et al.. (2015). Carbon disulfide formation in papaya under conditions of dithiocarbamate residue analysis. Food Chemistry. 188. 71–76. 9 indexed citations

2.

Corilo, Yuri, Regina Sparrapan, Mario Benassi, et al.. (2012). Exploring the intrinsic polar [4 + 2⁺] cycloaddition reactivity of gaseous carbosulfonium and carboxonium ions. Journal of Mass Spectrometry. 47(11). 1526–1535. 1 indexed citations

3.

Sparrapan, Regina, Marcos N. Eberlin, & Rosana M. Alberici. (2011). Natural and artificial markers of gasoline detected by membrane introduction mass spectrometry. Analytical Methods. 3(3). 751–751. 8 indexed citations

4.

Figueiredo, Eduardo Costa, Regina Sparrapan, Gustavo B. Sanvido, et al.. (2011). Quantitation of drugs via molecularly imprinted polymer solid phase extraction and electrospray ionization mass spectrometry: benzodiazepines in human plasma. The Analyst. 136(18). 3753–3753. 32 indexed citations

5.

Sparrapan, Regina, Marcos N. Eberlin, & Rosana M. Alberici. (2008). Quantitation of trace phenolic compounds in water by trap‐and‐release membrane introduction mass spectrometry after acetylation. Rapid Communications in Mass Spectrometry. 22(24). 4105–4108. 8 indexed citations

6.

Sparrapan, Regina, et al.. (2008). Chloroform formation by chlorination of aqueous algae suspensions: online monitoring via membrane introduction mass spectrometry. Journal of the Brazilian Chemical Society. 19(5). 950–955. 5 indexed citations

7.

Tomazela, Daniela M., Adão A. Sabino, Regina Sparrapan, Fábio C. Gozzo, & Marcos N. Eberlin. (2006). Distonoid ions. Journal of the American Society for Mass Spectrometry. 17(7). 1014–1022. 29 indexed citations

8.

Carneiro, José Walkimar de M., et al.. (2006). Electrophilic Aromatic Nitration: Understanding Its Mechanism and Substituent Effects. The Journal of Organic Chemistry. 71(16). 6192–6203. 69 indexed citations

9.

Haddad, Renato, Regina Sparrapan, & Marcos N. Eberlin. (2006). Desorption sonic spray ionization for (high) voltage‐free ambient mass spectrometry. Rapid Communications in Mass Spectrometry. 20(19). 2901–2905. 241 indexed citations

10.

Sparrapan, Regina, Marcos N. Eberlin, & Rodinei Augusti. (2005). Locating the charge site in isomeric pyrrolyl ions by Eberlin ion/molecule reactions. Rapid Communications in Mass Spectrometry. 19(12). 1775–1778. 9 indexed citations

11.

Meurer, Eduardo C., Regina Sparrapan, Daniela M. Tomazela, Marcos N. Eberlin, & Rodinei Augusti. (2005). Cyclization reactions of acylium and thioacylium ions with isocyanates and isothiocyanates: Gas phase synthesis of 3,4-dihydro-2,4-dioxo-2H-1,3,5-oxadiazinium ions. Journal of the American Society for Mass Spectrometry. 16(10). 1602–1607. 4 indexed citations

12.

Rocha, Lilian Lúcia da, Regina Sparrapan, Rodinei Augusti, & Marcos N. Eberlin. (2004). Direct assignment of positional isomers by mass spectrometry: ortho, meta and para acyl and amidyl anilines and phenols and derivatives. Journal of Mass Spectrometry. 39(10). 1176–1181. 13 indexed citations

13.

Rocha, Lilian Lúcia da, Regina Sparrapan, & Marcos N. Eberlin. (2003). Reactions of gaseous halocarbonyl cations with aromatic compounds: ionic carbonylation of inert CH bonds. International Journal of Mass Spectrometry. 228(2-3). 901–912. 9 indexed citations

14.

Sparrapan, Regina, et al.. (2003). Reactions of gaseous acylium ions with 1,3‐dienes: further evidence for polar [4 + 2⁺] Diels–Alder cycloaddition. Journal of Mass Spectrometry. 38(3). 305–314. 12 indexed citations

15.

Sparrapan, Regina, et al.. (2000). Formal Fusion of a Pyrrole Ring onto 2-Pyridyl and 2-Pyrimidyl Cations: One-Step Gas-Phase Synthesis of Indolizine and Its Derivatives. Chemistry - A European Journal. 6(2). 321–326. 1 indexed citations

16.

Sparrapan, Regina, et al.. (2000). Formal Fusion of a Pyrrole Ring onto 2-Pyridyl and 2-Pyrimidyl Cations: One-Step Gas-Phase Synthesis of Indolizine and Its Derivatives. Chemistry - A European Journal. 6(2). 321–326. 23 indexed citations

17.

Sparrapan, Regina, Maria Anita Mendes, & Marcos N. Eberlin. (2000). Double transacetalization of diacylium ions. Journal of Mass Spectrometry. 35(2). 189–198. 15 indexed citations

18.

Alberici, Rosana M., Regina Sparrapan, Marcos N. Eberlin, Dario Windmöller, & Rodinei Augusti. (1999). Polyetherimide–silicone: a 10 μm ultrathin composite membrane for faster and more sensitive membrane introduction mass spectrometry analysis. Analytical Communications. 36(6). 221–223. 19 indexed citations

19.

Augusti, Rodinei, Fábio C. Gozzo, Luiz Alberto Beraldo de Moraes, Regina Sparrapan, & Marcos N. Eberlin. (1998). The Simplest Azabutadienes in Their N-Protonated Forms. Generation, Stability, and Cycloaddition Reactivity in the Gas Phase. The Journal of Organic Chemistry. 63(15). 4889–4897. 25 indexed citations

20.

Sparrapan, Regina, et al.. (1995). Nucleophilic Interception of the .gamma.,.delta.-Acetylenic .alpha.,.beta.-Olefinic Aldehyde Intermediate Formed from Furil Monotosylhydrazone. The Journal of Organic Chemistry. 60(13). 3975–3979. 3 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.

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