Principles and Applications of Chromatography for Biomolecular Purification and Analysis

Abstract Biomolecules such as proteins, nucleic acids, lipids, and carbohydrates are essential for life, performing diverse structural and functional roles within living organisms. Purification and analysis of these biomolecules are critical for understanding biological processes and for applications in pharmaceuticals, diagnostics, and biotechnology. Chromatography, a powerful separation technique based on differential interactions between stationary and mobile phases, enables effective isolation and characterization of biomolecules from complex mixtures. Various chromatographic methods—including column chromatography, high-performance liquid chromatography (HPLC), gas chromatography (GC), and thin-layer chromatography (TLC)—are widely employed depending on the nature of the biomolecules and the desired resolution. Recent advancements, such as affinity tags, automation, coupling with mass spectrometry, and microfluidic technologies, have significantly enhanced the specificity, sensitivity, and throughput of chromatographic separations. Despite challenges like sample complexity and scale-up limitations, innovative strategies including multi-dimensional chromatography are expanding the technique’s capabilities. Chromatography continues to be fundamental in advancing biochemical research and industrial applications, with promising prospects in personalized medicine and proteomics.