Abstract
This article outlines the recent progress in two‐dimensional (2D) correlation spectroscopy, especially new and noteworthy developments and its applications. 2D correlation spectroscopy is a powerful technique used to analyze effectively various spectral data, especially those obtained in various spectroscopic experiments. 2D correlation spectroscopy has undergone rapid developments. This article highlights new types of 2D correlation analysis, such as combination of chemometrics and 2D correlation spectroscopy, projection 2D analysis, and heterocorrelation analysis, as well as experimental practices, such as various perturbation methods, fields of applications, and analytical probes employed.
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