TY - RPRT TI - High-performance liquid chromatographic method development and validation for the simultaneous quantitation of naproxen sodium and pseudoephedrine hydrochloride impurities. AU - A Ekpe AU - J H Tong AU - L Rodriguez PY - 2001 DO - 10.1093/chromsci/39.3.81 UR - https://pubmed.ncbi.nlm.nih.gov/11277256/ ID - 11277256 ER -