NDLI: FLOW-INJECTION SPECTROMETRIC DETERMINATION OF SODIUM DICLOFENAC IN PHARMACEUTICAL FORMULATIONS

Content Provider	Scientific Electronic Library Online (SciELO)
Author	Silva, E. F. Gomes, P. R. B. Fernandes, R. N. Lyra, W. S.
Abstract	ABSTRACT A flow-injection spectrometric method for determination of sodium diclofenac in pharmaceutical formulations was developed on this work. Sodium diclofenac solutions were injected into a stream of deionized water that reacted with potassium permanganate on acid medium producing Mn2+ ions whose exhibit maximum absorbance at 450 nm. The methodology used optimize experimental parameters was 33 factorial design and response surface. The proposed method obeyed the Beer's Law over the range 25-160 mg L–1, applied in tablets and ampoules samples. Results were compare with the reference method. It was verified at the 95% confidence level, through paired t-test application - there is no statistic difference between them. The detection limit was valued in 2.6 mg L–1, relative standard deviation for 10 consecutive injections was 1.5% (100.0 mg L–1 sodium diclofenac solution) and the sample throughput was 80 samples h–1. Regarding optimization of operational conditions, the FIA spectrometric method presented analytical performance as good as other elaborated flow analyzers. Offers a simple and inexpensive way to this drug indirect determination aiming quality control on pharmaceutical industry's assembly line. However, it can not be used for adulteration screening analysis due to non-selectivity and non-specificity of redox reactions.
Related Links	https://scielo.conicyt.cl/scielo.php?script=sci_abstract&pid=S0717-97072018000203941&lng=en&nrm=iso https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-97072018000203941&lng=en&nrm=iso
Starting Page	3941
Ending Page	3946
Page Count	6
File Format	PDF
ISSN	07179707
DOI	10.4067/s0717-97072018000203941
Journal	Journal of the Chilean Chemical Society
Issue Number	2
Volume Number	63
Language	English
Publisher	Sociedad Chilena de Química
Publisher Date	2018-06-01
Access Restriction	Open
Subject Keyword	Sodium diclofenac Flow-injection analysis Injectable solutions Tablets
Content Type	Text
Resource Type	Article
Subject	Chemistry

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