Impurities and adulterants in raw materials pose potential health threats when present in the manufacturing of pharmaceutical APIs and drug products. These same impurities and adulterants may also result in lower production yields and greater needs for product purification. Thus, their identification and quantification within incoming raw material play an important role in the pharma industry, ensuring product safety & quality, and an overall smooth and cost-efficient manufacturing process.
http://www.tnnchemical.com/pharmaceutical-raw-materials/