Abstract
This report summarizes the near-infrared (NIR) spectroscopy session IR04, “Near-Infrared Spectroscopy: Innovations and Applications,” held at the SciX 2025 conference (52nd Annual Conference of FACSS) in Covington, Kentucky, USA. Within the broader focus of SciX on analytical chemistry and spectroscopy, the session underlined the established role of NIR as a versatile tool for quantitative and diagnostic measurements. Presentations covered a spectrum of topics including new instrument architectures, advances in chemometric modeling and data handling, and application-driven case studies from environmental, industrial, and pharmaceutical contexts. Particular emphasis was placed on calibration strategies, model performance, and interpretability, as well as on the integration of NIR data with other spectroscopic information to build more comprehensive analytical frameworks. Together, the contributions provided an overview of current trends in NIR spectroscopy, illustrating how methodological developments and best practices in data analytics are extending the scope of NIR across diverse molecular systems and sample types.
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