2004
DOI: 10.1016/j.talanta.2004.02.034
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Determination of furosemide in pharmaceutical formulations by diffuse reflectance spectroscopy

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Cited by 44 publications
(37 citation statements)
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“…The reaction between secondary aromatic amines and p-DAC is assumed to take place via the condensation of the protonated secondary amino group with the carbonyl group of the reagent to produce an imminium salt. [32][33][34] The probable mechanism for this reaction is shown in Scheme 1, which is to a large extent based on reactions suggested in the literature. [32][33][34] It is known that micellar media are capable of changing the equilibrium, kinetic and spectral properties of reactions in which they are involved, and this has been used to improve the characteristics of analytical procedures.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…The reaction between secondary aromatic amines and p-DAC is assumed to take place via the condensation of the protonated secondary amino group with the carbonyl group of the reagent to produce an imminium salt. [32][33][34] The probable mechanism for this reaction is shown in Scheme 1, which is to a large extent based on reactions suggested in the literature. [32][33][34] It is known that micellar media are capable of changing the equilibrium, kinetic and spectral properties of reactions in which they are involved, and this has been used to improve the characteristics of analytical procedures.…”
Section: Resultsmentioning
confidence: 99%
“…[32][33][34] The probable mechanism for this reaction is shown in Scheme 1, which is to a large extent based on reactions suggested in the literature. [32][33][34] It is known that micellar media are capable of changing the equilibrium, kinetic and spectral properties of reactions in which they are involved, and this has been used to improve the characteristics of analytical procedures. 27 The effect of surfactant micelles in the condensation of aldehydes, such as p-DAC, with amines has been subject of a number of publications.…”
Section: Resultsmentioning
confidence: 99%
“…In these cases, multivariate analysis has been extensively applied to determine the best conditions for the analytical methods employed [3,34,35]. The experimental design offers an efficient route to identify the conditions yielding the best results.…”
Section: Optimization Of Variables Using Multivariate Analysismentioning
confidence: 99%
“…1, 2009 that permit the determination of this diuretic drug in pharmaceuticals and biological samples (milk, urine, plasma and serum). 11,12 These methods include spectrophotometry, [13][14][15][16][17][18] variable-angle scanning fluorescence spectrometry, 19 spectrofluorimetry, 20,21 diffuse reflectance spectroscopy, 22 potentiometry, 23 voltammetry, 24 chromatography, [25][26][27][28][29][30][31][32][33][34][35] capillary electrophoresis, [36][37][38][39] and flow-injection analysis. 40,41 However, many of these methods are often time-consuming, technically demanding and require the use of costly, highly specialized instruments.…”
Section: Introductionmentioning
confidence: 99%