Robert Schaffer

3.0k total citations · 1 hit paper
62 papers, 2.2k citations indexed

About

Robert Schaffer is a scholar working on Molecular Biology, Spectroscopy and Organic Chemistry. According to data from OpenAlex, Robert Schaffer has authored 62 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Molecular Biology, 15 papers in Spectroscopy and 12 papers in Organic Chemistry. Recurrent topics in Robert Schaffer's work include Analytical Chemistry and Chromatography (9 papers), Carbohydrate Chemistry and Synthesis (9 papers) and Metabolism and Genetic Disorders (8 papers). Robert Schaffer is often cited by papers focused on Analytical Chemistry and Chromatography (9 papers), Carbohydrate Chemistry and Synthesis (9 papers) and Metabolism and Genetic Disorders (8 papers). Robert Schaffer collaborates with scholars based in United States, Canada and South Korea. Robert Schaffer's co-authors include Basil T. Doumas, Yong Baek Kim, D D Bayse, Theodore Peters, John C. Sowden, Eric Kin-Ho Lee, Harry S. Hertz, Subhro Bhattacharjee, Alex Cohen and Michael J. Welch and has published in prestigious journals such as Journal of the American Chemical Society, Physical Review Letters and Analytical Chemistry.

In The Last Decade

Robert Schaffer

61 papers receiving 2.0k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

A candidate reference method for determination of total protein in serum. I. Development and validation.

1981 466 citations Basil T. Doumas, D D Bayse et al. Clinical Chemistry profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Robert Schaffer United States	25	567	354	227	221	193	62	2.2k
P. Weber Germany	21	640 1.1×	100 0.3×	265 1.2×	58 0.3×	393 2.0×	74	2.4k
L. Koester Brazil	32	559 1.0×	88 0.2×	201 0.9×	81 0.4×	468 2.4×	166	3.6k
Takuji Kawashima Japan	26	428 0.8×	113 0.3×	172 0.8×	37 0.2×	51 0.3×	140	2.3k
Åke Åkeson Sweden	30	1.9k 3.4×	28 0.1×	459 2.0×	209 0.9×	89 0.5×	101	3.6k
Gerhard Franz Germany	32	860 1.5×	34 0.1×	194 0.9×	83 0.4×	233 1.2×	246	3.7k
Minoru Tsuda Japan	29	676 1.2×	44 0.1×	574 2.5×	89 0.4×	451 2.3×	156	3.2k
Lars Hemmingsen Denmark	33	1.1k 1.9×	27 0.1×	250 1.1×	105 0.5×	337 1.7×	187	3.2k
Yasuhiro Higashi Japan	29	2.8k 4.9×	34 0.1×	153 0.7×	575 2.6×	61 0.3×	111	4.8k
Pekka Mark Sweden	9	1.9k 3.4×	32 0.1×	460 2.0×	60 0.3×	473 2.5×	11	3.8k
G. A. D. Haslewood United Kingdom	26	596 1.1×	14 0.0×	346 1.5×	96 0.4×	54 0.3×	106	2.2k

Countries citing papers authored by Robert Schaffer

Since Specialization

Citations

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

Fields of papers citing papers by Robert Schaffer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Robert Schaffer

This figure shows the co-authorship network connecting the top 25 collaborators of Robert Schaffer. A scholar is included among the top collaborators of Robert Schaffer 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 Robert Schaffer. Robert Schaffer 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

Osterhoff, Markus, Juan Manuel Rosselló, Robert Mettin, et al.. (2021). Nanosecond timing and synchronization scheme for holographic pump–probe studies at the MID instrument at European XFEL. Journal of Synchrotron Radiation. 28(3). 987–994. 6 indexed citations

Hagemann, J., Markus Osterhoff, Juan Manuel Rosselló, et al.. (2020). Single-pulse phase-contrast imaging at free-electron lasers in the hard X-ray regime. Journal of Synchrotron Radiation. 28(1). 52–63. 31 indexed citations

Schaffer, Robert, Eric Kin-Ho Lee, Bohm‐Jung Yang, & Yong Baek Kim. (2016). Recent progress on correlated electron systems with strong spin–orbit coupling. Reports on Progress in Physics. 79(9). 94504–94504. 122 indexed citations

Schaffer, Robert, Eric Kin-Ho Lee, Yuan-Ming Lu, & Yong Baek Kim. (2015). Topological Spinon Semimetals and Gapless Boundary States in Three Dimensions. Physical Review Letters. 114(11). 116803–116803. 38 indexed citations

Lee, Eric Kin-Ho, Robert Schaffer, Subhro Bhattacharjee, & Yong Baek Kim. (2014). Heisenberg-Kitaev model on the hyperhoneycomb lattice. Physical Review B. 89(4). 76 indexed citations

Schaffer, Robert, A. A. Burkov, & Roger G. Melko. (2009). Superfluid phases of lattice bosons with ring-exchange interaction. Physical Review B. 80(1). 8 indexed citations

Welch, Michael J., et al.. (1986). Determination of serum creatinine by isotope dilution mass spectrometry as a candidate definitive method. Analytical Chemistry. 58(8). 1681–1685. 85 indexed citations

Duncan, P H, Nathan Gochman, D D Bayse, et al.. (1982). A candidate reference method for uric acid in serum. II. Interlaboratory testing.. Clinical Chemistry. 28(2). 291–293. 10 indexed citations

Doumas, Basil T., et al.. (1981). A candidate reference method for determination of total protein in serum. I. Development and validation.. Clinical Chemistry. 27(10). 1642–1650. 466 indexed citations breakdown →

10.

Schaffer, Robert, R A Velapoldi, Robert C Paule, et al.. (1981). A multilaboratory-evaluated reference method for the determination of serum sodium.. Clinical Chemistry. 27(11). 1824–1828. 11 indexed citations

11.

Cohen, Alex, Harry S. Hertz, J. Mandel, et al.. (1980). Total serum cholesterol by isotope dilution/mass spectrometry: a candidate definitive method.. PubMed. 26(7). 854–60. 102 indexed citations

12.

Yap, Wai-Sum, et al.. (1979). Estimation of water content by kinetic method in Karl Fischer titration. Analytical Chemistry. 51(9). 1595–1596. 4 indexed citations

13.

Reeder, Dennis J., Lorna T. Sniegoski, & Robert Schaffer. (1978). o-Phthalaldehyde for the fluorometric assay of nonprotein amino compounds. Analytical Biochemistry. 86(2). 490–497. 11 indexed citations

14.

Margolis, Sam A., Wai-Sum Yap, Ben Matthews, & Robert Schaffer. (1978). Reverse-Phase Liquid Chromatographic Analysis of the Acid-Catalyzed Rearrangement of Nadh, Separation of New Products and an Analysis of the First Two Reactions of the Rearrangement. Journal of Liquid Chromatography. 1(5). 669–691. 11 indexed citations

15.

Coxon, Bruce, Alexander J. Fatiadi, Lorna T. Sniegoski, Harry S. Hertz, & Robert Schaffer. (1977). A novel acylative degradation of uric acid. Carbon-13 nuclear magnetic resonance studies of uric acid and its degradation products. The Journal of Organic Chemistry. 42(19). 3132–3140. 32 indexed citations

16.

Fatiadi, Alexander J. & Robert Schaffer. (1974). An improved procedure for synthesis of DL-4-hydroxy-3-methoxymandelic acid (DL-""vanillyl""-mandelic acid, VMA). Journal of Research of the National Bureau of Standards Section A Physics and Chemistry. 78A(3). 411–411. 6 indexed citations

17.

Margolis, Sam A., et al.. (1973). Residual Fluorescence as an Index of Purity of Reduced Nicotinamide Adenine Dinucleotide. Clinical Chemistry. 19(11). 1280–1284. 1 indexed citations

18.

Coxon, Bruce & Robert Schaffer. (1971). Characterization and quantitative analysis of D-glucose for use in clinical analysis. Analytical Chemistry. 43(12). 1565–1570. 12 indexed citations

19.

Schaffer, Robert. (1959). Branched-chain Higher Sugars. II. A Diethylidene-octose¹. Journal of the American Chemical Society. 81(11). 2838–2842. 37 indexed citations

20.

Schaffer, Robert. (1959). Branched-chain Higher Sugars. III. A 4-C-(Hydroxymethyl)-pentose¹. Journal of the American Chemical Society. 81(20). 5452–5454. 32 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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