In situ analysis is a research approach that involves the study and analysis of objects, materials, or phenomena in their natural or original environment. This method allows researchers to gather data and make observations without disturbing or altering the subject of study. In situ analysis is commonly used in fields such as environmental science, archaeology, geology, and biology to better understand the behavior, characteristics, and interactions of various elements in their natural settings. This approach often provides more accurate and reliable results compared to laboratory-based studies.