This research project provides a thorough overview of gel chromatography, a widely used separation technique in biochemistry and related fields. It delves into the fundamental principles that govern the separation process, including molecular size exclusion and the interactions between the analyte, the stationary phase, and the mobile phase. The project investigates the different types of gel chromatography, such as size exclusion chromatography (SEC), and their specific applications in various scientific disciplines. A significant focus is placed on the practical aspects of implementing gel chromatography, detailing the experimental setup, column selection, sample preparation, and data analysis. This includes the optimization of experimental parameters to achieve optimal separation efficiency and resolution of target molecules. The project also covers the advancements in gel chromatography techniques, including high-performance liquid chromatography (HPLC) based methods, and their impact on separating complex mixtures, identifying and characterizing biomolecules. The project goes further to explore troubleshooting common issues and limitations, as well as the importance of proper method validation and quality control procedures, ensuring accuracy and reliability of experimental results. Finally, the project aims to demonstrate the versatility of gel chromatography in analyzing and purifying biological samples, from proteins and nucleic acids, to polysaccharides and synthetic polymers. The description should be suitable for a student in their undergraduate or graduate program.