Compliance with the latest USP and EP chapters on UV-visible spectrophotometry

摘要

New editions of United States General Pharmacopeia Chapter and European Pharmacopoeia Chapter 2.2.25,giving guidance on instrument qualification for ultraviolet and visible spectrophotometry,have recently been introduced.The former became mandatory on 1st December 2019 and the latter on 1st January 2020.Both introduce new approaches to qualification and suggest a variety of new reference materials for qualification measurements.While there are several areas of conformity between the two new standards,there are also some important differences.