Organic carbon refers to carbon compounds that are derived from living organisms, such as plants, animals, and microorganisms. This research area focuses on the study of the sources, distribution, transformation, and cycling of organic carbon in various natural environments, including soils, sediments, oceans, and the atmosphere. Understanding organic carbon is important for assessing carbon storage and cycling in ecosystems, as well as its impact on global climate change. Researchers in this field use a variety of analytical techniques, including spectroscopy, chromatography, and mass spectrometry, to study the chemical composition and reactivity of organic carbon in different environments. Studies in organic carbon also play a crucial role in addressing environmental issues such as soil fertility, water quality, and carbon sequestration.