Application of PMR Spectrometry in Quantitative Analysis of Praziquantel in Pharmaceutical Preparations

Autor: F. I. Khattab, N. A. El Ragehy, A. K. S. Ahmad, S. Z. El-khateeb
Rok vydání: 1990
Předmět:
Zdroj: Spectroscopy Letters. 23:505-514
ISSN: 1532-2289
0038-7010
DOI: 10.1080/00387019008054432
Popis: A simple, accurate and specific proton magnetic resonance (PMR) procedure is developed for the assay of praziquantel and its tablets. The method involves comparing the integral of the multiplet of praziquantel (positioned at δ 7.3 ppm) to that of the sharp singlet signal (positioned at δ 6.3 ppm) of maleic acid which is used as intenal standard. The method reported in this study gives accurate and reproducible results when applied for the analysis of both authentic drug and its tablets. In addition the PMR spectrum helps in confirming the identity and purity of the drug.
Databáze: OpenAIRE