Greener Analytical Technique: A Step towards Sustainable Pharma

Environmental sustainability has emerged as a key focus in the pharmaceutical industry, driving the transition toward greener analytical practices. Analytical chemistry plays a critical role in drug research, development, and quality control, and adopting eco-friendly methodologies aligns with the principles of green chemistry. Greener analytical techniques aim to minimize hazardous solvent use, reduce waste generation, and enhance energy efficiency without compromising analytical performance. This review discusses the regulatory, economic, and ethical drivers for sustainable analytical methods, highlighting solvent minimization strategies, eco-friendly sample preparation, and advanced chromatographic and spectroscopic approaches. Assessment tools such as GAPI, AGREE, and Eco-Scale are evaluated for quantifying the greenness of methods. Case studies and innovations in green method development demonstrate the feasibility of integrating sustainability into pharmaceutical analysis. Despite challenges related to sensitivity, regulatory gaps, and instrument limitations, the future of green analytical chemistry lies in combining Quality by Design (QBD), automation, and artificial intelligence to achieve truly sustainable pharmaceutical quality control.