Assay of nifedipine and its by- and degradation products in the drug substance and dragees by liquid chromatography on formamide-saturated silica gel columns

Quantitative determination of p-aminosal

Quantitative determination of p-aminosalicylic acid and its degradation product m-aminophenol in pellets by ion-pair high-performance liquid chromatography applying the monolithic Chromolith Speedrod RP-18e column

✍ E. Vasbinder; G. Van der Weken; Y. Vander Heyden; W. R. G. Baeyens; A. Debunne; 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 114 KB 👁 2 views

## Abstract An ion‐pair high performance liquid chromatographic method was developed for the simultaneous determination of __p__‐aminosalicylic acid (PAS) and its degradation product __m__‐aminophenol (MAP) in a newly developed multiparticular drug delivery system. Owing to the concencentration dif