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Detection of verapamil drug by fluorescence and trilinear decompositim techniques

Title
Detection of verapamil drug by fluorescence and trilinear decompositim techniques
Type
Article in International Scientific Journal
Year
2002
Authors
da Silva, JCGE
(Author)
FCUP
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Leitao, JMM
(Author)
Other
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Costa, FS
(Author)
Other
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Ribeiro, JLA
(Author)
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Journal
Vol. 453
Pages: 105-115
ISSN: 0003-2670
Publisher: Elsevier
Scientific classification
FOS: Natural sciences > Chemical sciences
Other information
Authenticus ID: P-000-QA3
Abstract (EN): A three-way analytical methodology experimentally based on fluorescence excitation emission matrix (EEM) and in PARAFAC and TLD chemometric analysis was assessed for the quantification of verapamil drug in a tablet formulation. A standard addition procedure generates experimental information compatible with the chemometric data analysis model allowing the estimation of verapamil with a detection limit of about 0.04 mg/l using methanol as solvent. The structure of the verapamil EEM follows a trilinear model, but background signals (first- and second-order scatter bands) did not-a trilinear three-factor model is necessary to describe experimental datasets. The comparison of a three-factor PARAFAC model with a United States Pharmacopoeia (USP) standard chromatographic method showed similar results.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 11
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