Use of FT-NIR transmission spectroscopy for the quantitative analysis of an active ingredient in a translucent pharmaceutical topical gel formulation
Journal Title: The AAPS Journal - Year 2001, Vol 3, Issue 3
Abstract
The objective of this study was to demonstrate the use of transmission Fourier transform near-infrared (FT-NIR) spectroscopy for quantitative analysis of an active ingredient in a translucent gel formulation. Gels were prepared using Carbopol 980 with 0%, 1%, 2%, 4%, 6%, and 8% ketoprofen and analyzed with an FT-NIR spectrophotometer operated in the transmission mode. The correlation coefficient of the calibration was 0.9996, and the root mean squared error of calibration was 0.0775%. The percent relative standard deviation for multiple measurements was 0.10%. The results prove that FT-NIR can be a good alternative to other, more time-consuming means of analysis for these types of formulations.
Authors and Affiliations
Mark S. Kemper, Edgar J. Magnuson, Stephen R. Lowry, William J. McCarthy, Napasinee Aksornkoae, D. Christopher Watts, James R. Johnson, Atul J. Shukla
Particle size analysis of concentrated phospholipid microemulsions: I. Total intensity light scattering
Water-in-oil phospholipid microemulsions prepared from a constant total surfactant/cosurfactant concentration of 25 wt% at four different lecithin/alcohol weight ratios (Km of 1∶1, 1.5∶1, 1.77∶1,...
Pharmacokinetic Interactions for Drugs with a Long Half-Life—Evidence for the Need of Model-Based Analysis
The online version of this article (doi:10.1208/s12248-015-9829-2) contains supplementary material, which is available to authorized users.
N-n-alkylnicotinium analogs, a novel class of antagonists at α4β2* Nicotinic acetylcholine receptors: Inhibition of S(-)-nicotine-evoked 86Rb+Efflux from rat thalamic synaptosomes
PyridineN-n-alkylation of S(-)-nicotine (NIC) affordsN-n-alkylnicotinium analogs, previously shown to competitively inhibit [3H]NIC binding and interact with α4β2* nicotinic receptors (nAChRs). The presen...
Population analysis of the pharmacokinetics and pharmacodynamics of RWJ-270201 (BCX-1812) in treating experimental influenza A and B virus in healthy volunteers
Our objective was to assess the pharmacokinetics and pharmacodynamics of RWJ-270201 (BCX-1812), an oral neuraminidase inibitor for the treatment of influenza A and B virus in healthy volunteers.
Virtual coupling of pyran protons in the 1H NMR spectra of C- and N-glucoronides: Dependence on substitution and solvent
We have observed that certain C-and N-glucuronides prepared as intermediates for breast cancer preventives demonstrate non-first order 1H NMR spectra that are not the result of impurities or degradation but are instead d...