Document Detail

Online monitoring of dissolution tests using dedicated potentiometric sensors in biorelevant media.
MedLine Citation:
PMID:  21168489     Owner:  NLM     Status:  Publisher    
The performance of the Ion-Selective Electrode (ISE) for in vitro dissolution testing using biorelevant media was evaluated in this study. In vitro dissolution was carried out using USP apparatus 2 (paddle method) with classical and with updated biorelevant media to simulate the pre- and postprandial states. The ISE was used as an analytical stand-alone system and in combination with a single-point HPLC-UV measurement. A modified method enabling the use of the ISE for very poorly soluble substances is also proposed. In terms of f(2)-factor, the results acquired using the ISE for the drug diphenhydramine-HCl were found to be very similar to the results obtained by manual sampling followed by HPLC-UV analysis. In Fed State Simulated Gastric Fluid (FeSSGF), a medium containing 50% milk, the ISE is more practical since the need to separate proteins from the analyte prior to HPLC-UV analysis is eliminated. Further work will be needed to establish ISE methodology for Fed State Simulated Intestinal Fluid (FeSSIF) media. In summary, the ISE has promise as an analytical tool for research and development applications.
Daniel Juenemann; Hugo Bohets; Mahir Ozdemir; Roy de Maesschalck; Koen Vanhoutte; Karl Peeters; Luc Nagels; Jennifer B Dressman
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2010-12-17
Journal Detail:
Title:  European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V     Volume:  -     ISSN:  1873-3441     ISO Abbreviation:  -     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2011-1-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9109778     Medline TA:  Eur J Pharm Biopharm     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier B.V. All rights reserved.
Institute for Pharmaceutical Technology, Goethe University, Frankfurt am Main, Germany.
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