The preparation of standards, also referred to as reference samples, of known concentrations is a frequently used procedure in most analytical laboratories. Internal or external standards with ...

The present study applied a combined analytical quality-by-design and green analytical chemistry approach to develop an HPLC method for the determination of four cephalosporin pharmaceuticals in both ...

The alternative text for this image may have been generated using AI. Hydroxypropyl methyl cellulose (HPMC) stock solution, 2% (wt/vol; ∼86 K nominal molecular weight; 4,000-cP viscosity; Aldrich); ...

High-performance liquid chromatography or high-pressure liquid chromatography (HPLC) is a chromatographic method that is used to separate a mixture of compounds in analytical chemistry and ...