E.J. Shellard

976 total citations
56 papers, 651 citations indexed

About

E.J. Shellard is a scholar working on Pharmacology, Biochemistry and Spectroscopy. According to data from OpenAlex, E.J. Shellard has authored 56 papers receiving a total of 651 indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Pharmacology, 16 papers in Biochemistry and 11 papers in Spectroscopy. Recurrent topics in E.J. Shellard's work include Alkaloids: synthesis and pharmacology (29 papers), Traditional and Medicinal Uses of Annonaceae (16 papers) and Analytical Chemistry and Chromatography (11 papers). E.J. Shellard is often cited by papers focused on Alkaloids: synthesis and pharmacology (29 papers), Traditional and Medicinal Uses of Annonaceae (16 papers) and Analytical Chemistry and Chromatography (11 papers). E.J. Shellard collaborates with scholars based in United Kingdom, Mexico and United States. E.J. Shellard's co-authors include J. Phillipson, A H Beckett, J. David Phillipson, E. V. Truter, W. J. Criddle, H. Halpaap, Peter J. Houghton, Lindsay J. Morris, Calvin M. Lee and E. Steven Duke and has published in prestigious journals such as Nature, SHILAP Revista de lepidopterología and Journal of Chromatography A.

In The Last Decade

E.J. Shellard

52 papers receiving 568 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
E.J. Shellard United Kingdom	14	241	197	194	118	102	56	651
Clemens A. J. Erdelmeier United States	14	119 0.5×	280 1.4×	73 0.4×	104 0.9×	31 0.3×	23	631
J. F. Carson United States	18	49 0.2×	234 1.2×	73 0.4×	209 1.8×	57 0.6×	43	712
L. J. Haynes Jamaica	13	91 0.4×	168 0.9×	58 0.3×	130 1.1×	24 0.2×	28	461
Mohammad Mushtaq United States	15	75 0.3×	82 0.4×	45 0.2×	40 0.3×	102 1.0×	36	501
E. Stahl Germany	13	39 0.2×	193 1.0×	33 0.2×	74 0.6×	171 1.7×	40	618
Donald B. Melville United States	16	151 0.6×	367 1.9×	56 0.3×	106 0.9×	16 0.2×	18	697
C. H. Brieskorn Germany	14	51 0.2×	301 1.5×	30 0.2×	70 0.6×	41 0.4×	83	626
C. Y. Hopkins Canada	21	36 0.1×	437 2.2×	256 1.3×	182 1.5×	156 1.5×	54	1.1k
Tatsuo Sumimoto Japan	12	188 0.8×	182 0.9×	26 0.1×	36 0.3×	39 0.4×	21	567
M.Taveira Magalhães Brazil	16	37 0.2×	289 1.5×	73 0.4×	88 0.7×	19 0.2×	29	627

Countries citing papers authored by E.J. Shellard

Since Specialization

Citations

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

Fields of papers citing papers by E.J. Shellard

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by E.J. Shellard. 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 E.J. Shellard. The network helps show where E.J. Shellard may publish in the future.

Co-authorship network of co-authors of E.J. Shellard

This figure shows the co-authorship network connecting the top 25 collaborators of E.J. Shellard. A scholar is included among the top collaborators of E.J. Shellard 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 E.J. Shellard. E.J. Shellard 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

Shellard, E.J.. (2015). Pharmacognostical Studies of Vera Cruz and Tampico jalap. REVISTA CEIBA. 9(2). 31–40.

Shellard, E.J.. (1987). Folk medicine: The art and the science. Endeavour. 11(1). 56–56. 55 indexed citations

Shellard, E.J.. (1982). Some pharmacognostical implications of Herbal Medicine and other forms of medicine involving plants. Royal Society of Health Journal. 102(5). 218–221. 1 indexed citations

Houghton, Peter J., et al.. (1975). 9-hydroxyrhynchophylline-type oxindole alkaloids. Phytochemistry. 14(2). 557–563. 9 indexed citations

Shellard, E.J.. (1973). Pharmaceutical Applications of Thin-Layer and Paper Chromatography. Biochemical Society Transactions. 1(3). 778–779. 4 indexed citations

Shellard, E.J., et al.. (1971). N-Oxides of the Oxindole Alkaloids Rhynchophylline and Isorhynchophylline. Xenobiotica. 1(4-5). 455–456. 2 indexed citations

Shellard, E.J., et al.. (1970). Separation of the degradation products of 1-benzoyl-5,5-diethylbarbituric acid by means of vapour programmed thin-layer chromatography. Journal of Chromatography A. 49(3). 541–543. 5 indexed citations

Shellard, E.J., et al.. (1970). The alkaloidal pattern in the leaves, stem-bark and root-bark ofMitragynaspecies from Ghana. Journal of Pharmacy and Pharmacology. 22(Supplement_1). 34S–39S. 11 indexed citations

Shellard, E.J. & A. Bryan Wade. (1969). The morphology and anatomy of the flowers of Mitragyna inermis (Willd.) O. Kuntze. Journal of Pharmacy and Pharmacology. 21(Supplement_1). 102S–112S. 5 indexed citations

10.

Shellard, E.J., et al.. (1969). THE MITRAGYNA SPECIES OF ASIA. Planta Medica. 17(1). 51–58. 7 indexed citations

11.

Shellard, E.J., et al.. (1968). The quantitative determination of some mitragyna'oxindole alkaloids after separation by thin-layer chromatography. Journal of Chromatography A. 32(3). 489–501. 6 indexed citations

12.

Shellard, E.J., et al.. (1968). The quantitative determination of some mitragyna oxindole alkaloids after separation by thin layer chromatography. Journal of Chromatography A. 33(2). 347–369. 30 indexed citations

13.

Shellard, E.J., et al.. (1968). The identification of the free amino acids present in some grass pollens by thin-layer chromatography. Journal of Chromatography A. 38(2). 257–266. 4 indexed citations

14.

Shellard, E.J., et al.. (1967). The effect of glycerol on the rate of movement of some amino acids on silica gel thin layers. Journal of Chromatography A. 26(2). 503–508. 2 indexed citations

15.

Shellard, E.J.. (1967). Thin-layer Chromatography. Nature. 216(5121). 1168–1170. 75 indexed citations

16.

Shellard, E.J. & A. Bryan Wade. (1967). The morphology and anatomy of the flowers of Mitragyna ciliata Aubr. et Pellegr. and Mitragyna stipulosa (D.C.) O. Kuntze. Journal of Pharmacy and Pharmacology. 19(11). 744–759. 1 indexed citations

17.

Phillipson, J. & E.J. Shellard. (1966). The relationship between thin-layer chromatographic behaviour and the stereochemistry of some heteroyohimbine alkaloids. Journal of Pharmacy and Pharmacology. 18(Supplement_1). 5S–8S. 1 indexed citations

18.

Beckett, A H, E.J. Shellard, & Albert N. Tackie. (1963). The Mitragyna Species of Ghana. Journal of Pharmacy and Pharmacology. 15(Supplement_1). 158T–165T. 7 indexed citations

19.

Beckett, A H, E.J. Shellard, & Albert N. Tackie. (1963). The Mitragyna Species of Ghana. Journal of Pharmacy and Pharmacology. 15(Supplement_1). 166T–169T. 8 indexed citations

20.

Fairbairn, J W, et al.. (1963). GAS LIQUID CHROMATOGRAPHIC ESTIMATION OF THE ALKALOIDS OFCONIUM MACULATUML.. Planta Medica. 11(1). 92–97. 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.

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