P. G. Sim

1.9k citations

40 papers · 1.6k indexed · 1 hit paper · h-index 16

Impact in

Environmental Chemistry top 0.5%
- Marine Toxins and Detection Methods
Oceanography top 2%
- Marine and coastal ecosystems

Papers in ⓘ

Spectroscopy 21
- Analytical Chemistry and Chromatography 16
- Mass Spectrometry Techniques and Applications 15
- Molecular spectroscopy and chirality 3
Molecular Biology 9
- Nicotinic Acetylcholine Receptors Study 4

Co-authors: Michael A. Quilliam (11 shared papers)A. W. McCulloch (3 shared papers)Ekk Sinn (3 shared papers)Arlan Silva Freitas (2 shared papers)P. H. Odense (2 shared papers)Jeffrey L. C. Wright (2 shared papers)John A. Walter (2 shared papers)R. A. Foxall (2 shared papers)
Journals: Rapid Communications in Mass Spectrometry (10 papers)Journal of Chromatography A (3 papers)Analytical and Bioanalytical Chemistry (2 papers)Journal of the American Chemical Society (2 papers)Journal of Mass Spectrometry (2 papers)
Partner nations: Canada United States

In The Last Decade

P. G. Sim

40 papers receiving 1.5k citations

Hit Papers

align trajectories log scale

Pennate Diatom Nitzschia pungens as the Primary Source of Domoic Acid, a Toxin in Shellfish from Eastern Prince Edward Island, Canada 1989 · 529 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

1989 Canadian Journal of Fisheries and Aquatic Sciences

Peers

Countries citing papers authored by P. G. Sim

Since Specialization

Citations

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

Fields of papers citing papers by P. G. Sim

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P. G. Sim. 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 P. G. Sim. The network helps show where P. G. Sim may publish in the future.

Co-authors

The 25 scholars most cited alongside P. G. Sim, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with P. G. Sim Line = papers co-authored together P. G. Sim links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 40 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Pennate Diatom Nitzschia pungens as the Primary Source of Domoic Acid, a Toxin in Shellfish from Eastern Prince Edward Island, Canada Canadian Journal of Fisheries and Aquatic Sciences ·Stephen S. Bates, C. J. Bird, Arlan Silva Freitas, R. A. Foxall, Michael W. Gilgan, Louis A. Hanic, G. R. Johnson, A. W. McCulloch, P. H. Odense, Roger Pocklington, Michael A. Quilliam, P. G. Sim, Jeremy C. Smith, D. V. Subba Rao, Ewen C.D. Todd, John A. Walter, Jeffrey L. C. Wright Hit paper breakdown →	1989	529
2	Identification of domoic acid, a neuroexcitatory amino acid, in toxic mussels from eastern Prince Edward Island Canadian Journal of Chemistry ·Jeffrey L. C. Wright, R. K. Boyd, Arlan Silva Freitas, Michael Falk, R. A. Foxall, W. D. Jamieson, M. V. Laycock, A. W. McCulloch, A. G. McInnes, P. H. Odense, Vibha Pathak, Michael A. Quilliam, Mark A. Ragan, P. G. Sim, Pierre Thibault, John A. Walter, Michael W. Gilgan, D J A Richard, Danielle Dewar	1989	335
3	High-Performance Liquid Chromatography of Domoic Acid, a Marine Neurotoxin, with Application to Shellfish and Plankton International Journal of Environmental & Analytical Chemistry ·Michael A. Quilliam, P. G. Sim, A. W. McCulloch, A. G. McInnes	1989	115
4	First manganese(III) spin crossover, first d4 crossover. Comment on cytochrome oxidase Journal of the American Chemical Society ·P. G. Sim, Ekk Sinn	1981	114
5	C ₆₀ and C ₇₀ fullerene isomers generated in flames. Detection and verification by liquid chromatography/mass spectrometry analyses Rapid Communications in Mass Spectrometry ·Joseph F. Anacleto, Hélène Perreault, Robert K. Boyd, Stephen Pleasance, Michael A. Quilliam, P. G. Sim, Jack B. Howard, Yakov Makarvovsky, Arthur L. Lafleur	1992	44
6	Liquid chromatographic determination of domoic acid in shellfish products using the paralytic shellfish poison extraction procedure of the association of official analytical chemists Journal of Chromatography A ·James F. Lawrence, Claudette F Charbonneau, Cathie Ménard, Michael A. Quilliam, P. G. Sim	1989	40
7	Analysis of polycyclic aromatic compounds by supercritical fluid charomatography/mass spectrometry using atmospheric‐pressure chemical ionization Rapid Communications in Mass Spectrometry ·Joseph F. Anacleto, Louis Ramaley, Robert K. Boyd, Steven Pleasance, Michael A. Quilliam, P. G. Sim, F. Benoit	1991	38
8	Lipid peroxidation in human breast cancer cells in response to gamma-linolenic acid and iron. PubMed ·Satoshi Takeda, David F. Horrobin, M Manku, P. G. Sim, G. Ells, V. Simmons	1992	30
9	Determination of Polycyclic Aromatic Compounds by High-Performance Liquid Chromatography with Simultaneous Mass Spectrometry and Ultraviolet Diode Array Detection Journal of Chromatographic Science ·Michael A. Quilliam, P. G. Sim	1988	26
10	Mechanism of lipid peroxidation in cancer cells in response to gamma-linolenic acid (GLA) analyzed by GC-MS(I): Conjugated dienes with peroxyl (or hydroperoxyl) groups and cell-killing effects. PubMed ·Satoshi Takeda, P. G. Sim, David F. Horrobin, T Sanford, Kenneth Chisholm, V. Simmons	1993	25
11	Electronic and molecular structure of variable-spin metal complexes. Spin state dependent crystal and molecular structures of [FeIII(5-OCH3Salmeen)2]PF6 (S = 5/2), [FEIII(3-OCH3Salmeen)2]PF6 (S = 1/2), and [FeIII(5-NO2Salmeen)2]PF6 (S = 1/2) Inorganic Chemistry ·P. G. Sim, Ekk Sinn, Randall H. Petty, Connie L. Merrill, Lon J. Wilson	1981	22
12	Preparation and certification of solutions of perdeuterated polycyclic aromatic compounds intended for use as surrogate internal standards Analytical and Bioanalytical Chemistry ·Michael A. Quilliam, W. R. Hardstaff, Joseph F. Anacleto, M. Denise LeBlanc, Victonia Stergiopoulos, Karla L. Dick, Michael T. Bowser, Jonathan M. Curtis, D. J. Embree, P. G. Sim, Robert K. Boyd	1994	21
13	A comparison of chromatographic and chromatographic/mass spectrometric techniques for the determination of polycyclic aromatic hydrocarbons in marine sediments Journal of Mass Spectrometry ·P. G. Sim, Robert K. Boyd, Robert M. Gershey, Roger Guevremont, W. D. Jamieson, Michael A. Quilliam, Robert John Gergely	1987	19
14	Synthesis and crystal structure of tris[1-(2-azolyl)-2-azabuten-4-yl]amineiron(III), [Fe((pyrol)3tren)] Inorganic Chemistry ·P. G. Sim, Ekk Sinn	1978	18
15	Capillary column supercritical fluid chromatography/mass spectrometry of polycyclic aromatic compounds using atmospheric pressure chemical ionization Rapid Communications in Mass Spectrometry ·Darren Thomas, P. G. Sim, Frank M. Benoit	1994	17
16	Collision‐induced fragmentation reactions of doubly charged ions of polycyclic aromatic hydrocarbons Organic Mass Spectrometry ·P. G. Sim, W. D. Jamieson, Robert K. Boyd	1989	16
17	Mechanism of the reduction of potassium ferricyanide by shearing The Journal of Physical Chemistry ·P. G. Sim, E. Whalley	1987	15
18	Reference materials for domoic acid, a marine neurotoxin Analytical and Bioanalytical Chemistry ·W. R. Hardstaff, W. D. Jamieson, Joyce E. Milley, Michael A. Quilliam, P. G. Sim	1990	15
19	Fragmentation reactions of doubly charged ions of nitrogenous heterocyclic aromatic compounds The Journal of Physical Chemistry ·Hélène Perreault, Louis Ramaley, F. Benoit, P. G. Sim, Robert K. Boyd	1991	14
20	Application of reversed phase liquid chromatography with atmospheric pressure chemical ionization tandem mass spectrometry to the determination of polycyclic aromatic sulfur heterocycles in environmental samples Journal of Mass Spectrometry ·Darren Thomas, Sheila Crain, P. G. Sim, Frank M. Benoit	1995	14

About P. G. Sim

P. G. Sim is a scholar working on Spectroscopy, Molecular Biology, Analytical Chemistry, Organic Chemistry and Environmental Chemistry, having authored 40 papers that have together received 1.6k indexed citations. Recurring topics across this work include Analytical Chemistry and Chromatography (16 papers), Mass Spectrometry Techniques and Applications (15 papers), Analytical chemistry methods development (6 papers), Marine Toxins and Detection Methods (5 papers), Nicotinic Acetylcholine Receptors Study (4 papers), Advanced Chemical Sensor Technologies (3 papers), Molecular spectroscopy and chirality (3 papers) and Cancer, Lipids, and Metabolism (3 papers). The work is most often cited by research in Environmental Chemistry (994 citations), Oceanography (447 citations), Toxicology (59 citations), Spectroscopy (260 citations) and Ecology (238 citations). P. G. Sim has collaborated with scholars based in Canada and United States. Frequent co-authors include Michael A. Quilliam, A. W. McCulloch, Ekk Sinn, Arlan Silva Freitas, P. H. Odense, Jeffrey L. C. Wright, John A. Walter, R. A. Foxall, Michael W. Gilgan and A. G. McInnes. Their work appears in journals such as Rapid Communications in Mass Spectrometry, Journal of Chromatography A, Analytical and Bioanalytical Chemistry, Journal of the American Chemical Society and Journal of Mass Spectrometry.

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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