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Current Status and Trends of Two-Dimensional Correlation Spectroscopy (2D-COS)
Yeonju Park1, Sujin Lee1, Isao Noda2
1Department of Chemistry, Institute for Molecular Science and Fusion Technology, and Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Korea.
Applied Spectroscopy
|June 20, 2026
Summary
This review surveys two-dimensional correlation spectroscopy (2D-COS) research from 2023-2025, highlighting innovations in theory, applications, and methodology. It also addresses improper usage to ensure scientific rigor in this dynamic field.
Area of Science:
- Spectroscopy
- Materials Science
- Environmental Science
- Biophysics
Background:
- Two-dimensional correlation spectroscopy (2D-COS) is a powerful technique for analyzing complex spectral data.
- Recent advancements have expanded its capabilities and applications across various scientific disciplines.
- Ensuring methodological rigor and correct application is crucial for reliable scientific outcomes.
Purpose of the Study:
- To provide a comprehensive survey of 2D-COS research dissemination from July 2023 to February 2025.
- To systematically review new theoretical concepts, applications, and publications in the field.
- To critically assess and address instances of improper 2D-COS usage and citations.
Main Methods:
- Systematic literature review of books, reviews, tutorials, and patent applications.
- Analysis of emerging theoretical frameworks and practical applications.
- Critical evaluation of reported methodologies and citation practices.
Main Results:
- Significant innovations in probe integration, chemometric data analysis, and technical methodologies were identified.
- Expanding applications of 2D-COS in materials science, environmental monitoring, and biological systems were documented.
- Instances of improper usage and citations were critically examined to promote methodological rigor.
Conclusions:
- 2D-COS research demonstrates dynamic growth, increasing refinement, and multi-disciplinary diversification.
- Innovations in methodology and data analysis are enhancing the technique's utility.
- Addressing improper usage is essential for maintaining the integrity and advancing the field of 2D-COS.
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