Charles J. Umberger

15 papers and 386 indexed citations i.

About

Charles J. Umberger is a scholar working on Spectroscopy, Analytical Chemistry and Molecular Biology. According to data from OpenAlex, Charles J. Umberger has authored 15 papers receiving a total of 386 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Spectroscopy, 4 papers in Analytical Chemistry and 3 papers in Molecular Biology. Recurrent topics in Charles J. Umberger’s work include Analytical Chemistry and Chromatography (5 papers), Forensic Toxicology and Drug Analysis (2 papers) and Analytical chemistry methods development (2 papers). Charles J. Umberger is often cited by papers focused on Analytical Chemistry and Chromatography (5 papers), Forensic Toxicology and Drug Analysis (2 papers) and Analytical chemistry methods development (2 papers). Charles J. Umberger collaborates with scholars based in United States. Charles J. Umberger's co-authors include William F. Haddon, James R. McCarroll, Milton Helpern, Ralph F. Turner, Michael Cefola, Sean Goldner, Liliane Dal‐Cortivo and David C. Mulligan and has published in prestigious journals such as Analytical Chemistry, Analytical Biochemistry and Journal of Chromatography A.

In The Last Decade

Co-authorship network of co-authors of Charles J. Umberger i

Fields of papers citing papers by Charles J. Umberger

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Charles J. Umberger

Since Specialization
Citations

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

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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2025