John W. Ejnik

764 citations

19 papers · 599 indexed · h-index 14

Impact in

Radiological and Ultrasound Technology top 1%
- Radioactivity and Radon Measurements
Health, Toxicology and Mutagenesis top 5%
- Heavy Metal Exposure and Toxicity

Papers in ⓘ

Radiological and Ultrasound Technology 10
- Radioactivity and Radon Measurements 10
Radiology, Nuclear Medicine and Imaging 6
- Radiation Dose and Imaging 6

Co-authors: Matthew M. Hamilton (5 shared papers)C. Frank Shaw (4 shared papers)David H. Petering (4 shared papers)José A. Centeno (5 shared papers)Todor I. Todorov (5 shared papers)Katherine S. Squibb (5 shared papers)Melissa A. McDiarmid (5 shared papers)Florabel G. Mullick (3 shared papers)
Journals: Environmental Health Perspectives (2 papers)JBIC Journal of Biological Inorganic Chemistry (2 papers)Analytical and Bioanalytical Chemistry (1 paper)International Journal of Environmental Research and Public Health (1 paper)Health Physics (1 paper)
Partner nations: United States France Australia

In The Last Decade

John W. Ejnik

19 papers receiving 576 citations

Peers

Countries citing papers authored by John W. Ejnik

Since Specialization

Citations

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

Fields of papers citing papers by John W. Ejnik

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John W. Ejnik. 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 John W. Ejnik. The network helps show where John W. Ejnik may publish in the future.

Co-authors

The 25 scholars most cited alongside John W. Ejnik, 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 John W. Ejnik Line = papers co-authored together John W. Ejnik links everyone, so they are left out of the graph.

All Works

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19 of 19 papers shown

#	Work
1	Transformation of human osteoblast cells to the tumorigenic phenotype by depleted uranium-uranyl chloride. Environmental Health Perspectives ·Alexandra C. Miller, William F. Blakely, D. R. Livengood, Tim Whittaker, Jiaquan Xu, John W. Ejnik, Matthew M. Hamilton, Eric C. Parlette, Theodore St. John, H M Gerstenberg, Hui‐Ping Hsu	1998	106
2	Folding pathway of apo-metallothionein induced by Zn2+, Cd2+ and Co2+ Journal of Inorganic Biochemistry ·John W. Ejnik, James Robinson, Jianyu Zhu, Holger Försterling, C. Frank Shaw, David H. Petering	2002	73
3	Determination of the Isotopic Composition of Uranium in Urine by Inductively Coupled Plasma Mass Spectrometry Health Physics ·John W. Ejnik, A.J. Carmichael, Matthew M. Hamilton, Melissa A. McDiarmid, Katherine S. Squibb, P. R. Boyd, W. Tardiffs	2000	54
4	Biological effects of embedded depleted uranium (DU): summary of Armed Forces Radiobiology Research Institute research The Science of The Total Environment ·David E. McClain, K. A. Benson, Thomas K. Dalton, John W. Ejnik, Christy A. Emond, Shelly J. Hodge, John F. Kalinich, M.A Landauer, Alexandra C. Miller, Terry C. Pellmar, M. D. Stewart, Vanessa Serna Villa, Jiaquan Xu	2001	48
5	Uranium analysis in urine by inductively coupled plasma dynamic reaction cell mass spectrometry Analytical and Bioanalytical Chemistry ·John W. Ejnik, Todor I. Todorov, Florabel G. Mullick, Katherine S. Squibb, Melissa A. McDiarmid, José A. Centeno	2005	42
6	Interprotein metal ion exchange between cadmium-carbonic anhydrase and apo- or zinc-metallothionein JBIC Journal of Biological Inorganic Chemistry ·John W. Ejnik, Amalia Muñoz, Tong J. Gan, C. Frank Shaw, David H. Petering	1999	36
7	Environmental Exposure to Trace Elements and Prostate Cancer in Three New Zealand Ethnic Groups International Journal of Environmental Research and Public Health ·Marion Gray, José A. Centeno, David Slaney, John W. Ejnik, Todor I. Todorov, John N. Nacey	2005	31
8	Optimal sample preparation conditions for the determination of uranium in biological samples by kinetic phosphorescence analysis (KPA) Journal of Pharmaceutical and Biomedical Analysis ·John W. Ejnik, Matthew M. Hamilton, Phillip R. Adams, Alasdair J. Carmichael	2000	28
9	Arsenic Speciation in Urine and Blood Reference Materials Microchimica Acta ·Todor I. Todorov, John W. Ejnik, Florabel G. Mullick, José A. Centeno	2005	27
10	New vanadium-based magnetic resonance imaging probes: clinical potential for early detection of cancer JBIC Journal of Biological Inorganic Chemistry ·Devkumar Mustafi, Bo Peng, Sean Foxley, Marvin W. Makinen, Gregory S. Karczmar, Marta Zamora, John W. Ejnik, Heather Martin	2009	25
11	Mechanism of Cadmium Ion Substitution in Mammalian Zinc Metallothionein and Metallothionein α Domain: Kinetic and Structural Studies Inorganic Chemistry ·John W. Ejnik, C. Frank Shaw, David H. Petering	2010	23
12	Health Effects of Embedded Depleted Uranium Military Medicine ·David E. McClain, Kimberly Benson, Tom K. Dalton, John W. Ejnik, Christy A. Emond, Shelly J. Hodge, John F. Kalinich, Michael R. Landauer, D. R. Livengood, Alexandra C. Miller, Terry C. Pellmar, M. D. Stewart, Villa Vilmar, Jiaquan Xu	2002	23
13	Uranium reactions with hydrogen peroxide studied by EPR–spin trapping with DMPO † Journal of the Chemical Society Perkin Transactions 2 ·Matthew M. Hamilton, John W. Ejnik, Alasdair J. Carmichael	1997	19
14	Depleted uranium analysis in blood by inductively coupled plasma mass spectrometry Journal of Analytical Atomic Spectrometry ·Todor I. Todorov, Hanna Xu, John W. Ejnik, Florabel G. Mullick, Katherine S. Squibb, Melissa A. McDiarmid, José A. Centeno	2008	17
15	Structural Consequences of Metallothionein Dimerization: Solution Structure of the Isolated Cd₄-α-Domain and Comparison with the Holoprotein Dimer Biochemistry ·John W. Ejnik, Amalia Muñoz, Eugene F. DeRose, C. Frank Shaw, David H. Petering	2003	13
16	Military Deployment Human Exposure Assessment: Urine Total and Isotopic Uranium Sampling Results Journal of Toxicology and Environmental Health ·Lisa M. May, Jack M. Heller, Victor Kalinsky, John W. Ejnik, Steve Cordero, Kristi J. Oberbroekling, Thuy T. Long, Kathryne C. E. Meakim, David F. Cruess, Arthur P. Lee	2004	12
17	Detection of Depleted Uranium in Biological Samples from Gulf War Veterans Military Medicine ·Shelly J. Hodge, John W. Ejnik, Katherine S. Squibb, Melissa A. McDiarmid, Elena R. Morris, Michael R. Landauer, David E. McClain	2001	11
18	Transformation of Human Osteoblast Cells to the Tumorigenic Phenotype by Depleted Uranium-Uranyl Chloride Environmental Health Perspectives ·Alexandra C. Miller, William F. Blakely, D. R. Livengood, Tim Whittaker, Jiaquan Xu, John W. Ejnik, Matthew M. Hamilton, Eric C. Parlette, Theodore St. John, H M Gerstenberg, Hannah Hsu	1998	7
19	Uranium quantification in semen by inductively coupled plasma mass spectrometry Journal of Trace Elements in Medicine and Biology ·Todor I. Todorov, John W. Ejnik, Gustavo Guandalini, Hanna Xu, Dennis J. Hoover, Larry Anderson, Katherine S. Squibb, Melissa A. McDiarmid, José A. Centeno	2012	4

About John W. Ejnik

John W. Ejnik is a scholar working on Radiological and Ultrasound Technology, Radiology, Nuclear Medicine and Imaging, Nutrition and Dietetics, Global and Planetary Change and Health, Toxicology and Mutagenesis, having authored 19 papers that have together received 599 indexed citations. Recurring topics across this work include Radioactivity and Radon Measurements (10 papers), Radiation Dose and Imaging (6 papers), Trace Elements in Health (5 papers), Radioactive contamination and transfer (5 papers), Metal complexes synthesis and properties (4 papers), Heavy Metal Exposure and Toxicity (3 papers), Radioactive element chemistry and processing (3 papers) and Analytical chemistry methods development (1 paper). The work is most often cited by research in Radiological and Ultrasound Technology (216 citations), Health, Toxicology and Mutagenesis (213 citations), Nutrition and Dietetics (164 citations), Chemical Health and Safety (5 citations) and Inorganic Chemistry (104 citations). John W. Ejnik has collaborated with scholars based in United States, France and Australia. Frequent co-authors include Matthew M. Hamilton, C. Frank Shaw, David H. Petering, José A. Centeno, Todor I. Todorov, Katherine S. Squibb, Melissa A. McDiarmid, Florabel G. Mullick, Alexandra C. Miller and Jiaquan Xu. Their work appears in journals such as Environmental Health Perspectives, JBIC Journal of Biological Inorganic Chemistry, Analytical and Bioanalytical Chemistry, International Journal of Environmental Research and Public Health and Health Physics.

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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