Elemental composition refers to the relative abundance and distribution of chemical elements present in a sample or system. This research area typically involves the analysis, identification, and quantification of elements present in various materials such as minerals, biological samples, environmental samples, and industrial products. Elemental composition analysis is important for understanding the properties and behavior of materials, as well as for quality control, environmental monitoring, and scientific research purposes. Techniques used in elemental composition analysis include spectroscopy, mass spectrometry, X-ray fluorescence, and atomic absorption spectroscopy.