Clarence Karr

535 total citations
42 papers, 395 citations indexed

About

Clarence Karr is a scholar working on Spectroscopy, Analytical Chemistry and Mechanical Engineering. According to data from OpenAlex, Clarence Karr has authored 42 papers receiving a total of 395 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Spectroscopy, 11 papers in Analytical Chemistry and 10 papers in Mechanical Engineering. Recurrent topics in Clarence Karr's work include Analytical Chemistry and Chromatography (12 papers), Petroleum Processing and Analysis (6 papers) and Coal and Coke Industries Research (6 papers). Clarence Karr is often cited by papers focused on Analytical Chemistry and Chromatography (12 papers), Petroleum Processing and Analysis (6 papers) and Coal and Coke Industries Research (6 papers). Clarence Karr collaborates with scholars based in United States. Clarence Karr's co-authors include Patricia A. Estep, Peter Brown, Peter Waldstein, William C. Warner, William E. Hanson and Robert E. Lynch and has published in prestigious journals such as Journal of the American Chemical Society, Analytical Chemistry and The Journal of Physical Chemistry.

In The Last Decade

Clarence Karr

37 papers receiving 301 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Clarence Karr United States	10	109	95	95	67	53	42	395
Thomas Aczel United States	12	93 0.9×	173 1.8×	141 1.5×	38 0.6×	69 1.3×	21	430
Leon Petrakis United States	10	204 1.9×	108 1.1×	62 0.7×	60 0.9×	48 0.9×	14	474
Ben M. Benjamin United States	12	107 1.0×	101 1.1×	62 0.7×	67 1.0×	35 0.7×	44	552
Vernon F. Raaen United States	12	118 1.1×	51 0.5×	52 0.5×	77 1.1×	21 0.4×	39	517
H.J. Coleman United States	14	86 0.8×	229 2.4×	230 2.4×	53 0.8×	100 1.9×	36	565
J.R. Morrey United States	11	42 0.4×	51 0.5×	69 0.7×	42 0.6×	13 0.2×	27	435
D.W. Grandy Switzerland	14	336 3.1×	58 0.6×	128 1.3×	124 1.9×	76 1.4×	26	603
Ivo L. Freriks Netherlands	11	86 0.8×	83 0.9×	48 0.5×	37 0.6×	11 0.2×	18	407
Ronald Liotta United States	13	200 1.8×	53 0.6×	60 0.6×	106 1.6×	82 1.5×	18	703
J. M. Dereppe Belgium	14	53 0.5×	126 1.3×	53 0.6×	76 1.1×	92 1.7×	52	705

Countries citing papers authored by Clarence Karr

Since Specialization

Citations

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

Fields of papers citing papers by Clarence Karr

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Clarence Karr

This figure shows the co-authorship network connecting the top 25 collaborators of Clarence Karr. A scholar is included among the top collaborators of Clarence Karr 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 Clarence Karr. Clarence Karr 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:

20 of 20 papers shown

1.

Estep, Patricia A., et al.. (1972). Infrared and Raman spectroscopic studies of structural variations in minerals from Apollo 11, 12, 14, and 15 samples.. Lunar and Planetary Science Conference Proceedings. 3. 3047. 12 indexed citations

2.

Karr, Clarence, et al.. (1972). Reactions of iron sulphides in simulated stack gases. Journal of Applied Chemistry and Biotechnology. 22(5). 613–622. 1 indexed citations

3.

Karr, Clarence, et al.. (1972). Reactions of iron sulphides in simulated stack gases. Journal of Applied Chemistry and Biotechnology. 22(5). 613–622. 1 indexed citations

4.

Estep, Patricia A., et al.. (1971). Infrared vibrational spectroscopic studies of minerals from Apollo 11 and Apollo 12 lunar samples. Lunar and Planetary Science Conference Proceedings. 2. 2137. 8 indexed citations

5.

Karr, Clarence, et al.. (1969). Aspects of nuclear quadrupole resonance spectrometry of inorganics and minerals. Analytical Chemistry. 41(4). 661–664. 5 indexed citations

6.

Karr, Clarence, et al.. (1969). Far-Infrared Spectroscopy of Minerals and Inorganics. Applied Spectroscopy. 23(3). 219–223. 40 indexed citations

7.

Estep, Patricia A. & Clarence Karr. (1968). The infrared spectrum of dawsonite. American Mineralogist. 53. 305–309. 8 indexed citations

8.

Estep, Patricia A., et al.. (1968). Quantitative infrared multicomponent determination of minerals occurring in coal. Analytical Chemistry. 40(2). 358–363. 67 indexed citations

9.

Karr, Clarence, et al.. (1967). Quantitative infrared multicomponent analysis of minerals occurring in coal. 7 indexed citations

10.

Karr, Clarence, et al.. (1967). Identification of Distillable Paraffins, Olefins, Aromatic Hydrocarbons, and Neutral Heterocyclics from A Low-Temperature Bituminous Coal Tar. University of North Texas Digital Library (University of North Texas). 6 indexed citations

11.

Karr, Clarence, et al.. (1964). Analysis of Aromatic Hydrocarbons from Pitch Oils by Liquid Chromatography on Gas Chromatography Analog.. Analytical Chemistry. 36(11). 2105–2108. 7 indexed citations

12.

Karr, Clarence, et al.. (1962). Structure determination of resins from pitch of low-temperature tar by combined pyrolysis and gas--liquid chromatography. [3 refs]. 1 indexed citations

13.

Karr, Clarence, et al.. (1962). Structural Group Analysis of High Sulfur Content Mineral Oils.. Analytical Chemistry. 34(2). 249–255. 1 indexed citations

14.

Karr, Clarence, et al.. (1962). Gas-liquid chromatographic analysis of C10-C16n-paraffins, isoparaffins and α-olefins in a low-temperature coal tar. Analytica Chimica Acta. 26. 410–418. 6 indexed citations

15.

Karr, Clarence, et al.. (1959). Notes: A Procedure for Converting Aryl Halides to High Molecular Weight Phenols. The Journal of Organic Chemistry. 24(8). 1141–1143. 3 indexed citations

16.

Karr, Clarence, et al.. (1959). Infrared Spectral-Structural Correlations of Quinolines. Journal of the American Chemical Society. 81(1). 152–156. 18 indexed citations

17.

Karr, Clarence, et al.. (1959). Gas-liquid chromatographic analysis of aromatic hydrocarbons boiling up to 218° in a low-temperature coal tar. Analytica Chimica Acta. 21. 474–490. 23 indexed citations

18.

Karr, Clarence, et al.. (1958). Ultraviolet Spectrophotometric Determination of Total Pyridines and Quinolines in Low Temperature Coal-Tar Distillates. Analytical Chemistry. 30(5). 971–972. 4 indexed citations

19.

Karr, Clarence, et al.. (1958). Identification and Determination of Low-Boiling Phenols in Low Temperature Coal Tar. Analytical Chemistry. 30(8). 1413–1416. 34 indexed citations

20.

Karr, Clarence. (1954). Evaluation of Twenty Qualitative Tests for Petroleum Sulfur Compounds. Analytical Chemistry. 26(3). 528–536. 5 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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