A scientist’s position within the ranking is determined by their D-index (Discipline H-index), a refined metric that considers only those papers and citation information attributable to the individual’s research activity specifically within the Chemistry discipline. This discipline-focused approach ensures a precise and relevant representation of impact within the relevant academic field.
Scope of Research and Qualification Criteria
For this edition, a total of 279,971 scientist profiles spanning all disciplines were examined from various bibliometric data repositories. Within the field of Chemistry specifically, 161 scientists were identified and assessed in detail.
To qualify for inclusion in the Chemistry ranking, candidates were required to have a minimum D-index of 40. Additionally, the majority of their tier publications—those indexed as having significant influence—needed to be within the area of Chemistry. Consideration was also given to the scientists’ awards and other notable achievements in the field, enhancing the evaluation beyond citation metrics alone.
The D-index threshold is dynamically established in increments of 10 relative to the total estimated number of scholars within each discipline. This methodology ensures that the ranking consistently captures approximately the top 1% of leading researchers in the field. Furthermore, in order to maintain consistency and disciplinary relevance, the difference between a scientist’s overall H-index and their Chemistry-specific D-index is kept to a proximity of 30% or less.
Verification and Validation Procedures
Recognizing that raw bibliometric data cannot serve as an infallible indicator of scientific output, the Research.com team undertakes rigorous manual verification of all scientist profiles included in the ranking. Each profile is cross-referenced with publications across a wide spectrum of trustworthy journals, conference proceedings, and other credible sources to ensure accuracy and integrity.
Although not a direct factor in determining placement within the ranking, the number of publications in prominent journals and conference proceedings is regarded as a valuable secondary signal of a researcher’s contribution to the Chemistry discipline.
The ranking positions are ultimately established using each researcher’s D-index, derived from the verified bibliometric information gathered primarily from OpenAlex and CrossRef—two of the most well-regarded and comprehensive databases available to the global research community.
For more detailed information regarding the methodology employed in this ranking, please visit our methodology page.
Research.com’s Mission and Purpose
Research.com’s ongoing mission with the creation of these rankings is to inspire researchers, corporate leaders, policy makers, and academic institutions worldwide to recognize emerging trends and directions where leading experts are focusing their efforts. By providing a transparent, data-driven overview of who the foremost experts are in specific scientific domains—within countries and research institutions alike—we aim to foster greater collaboration, awareness, and informed decision-making throughout the global scientific community.
Through meticulous data collection, thorough validation, and discipline-specific analysis, the Research.com Best Chemistry Scientists ranking in Brazil stands as a credible, rigorously developed resource designed to advance the collective understanding of excellence in chemistry research.
