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O-(β-hydroxyethyl)rutosides determination by micellar flow injection (FI) spectrofluorimetry
(Elsevier, 2014-07)
A simple, eco friendly, sensitive and economic flow injection spectrofluorimetric method was developed for the determination of O-(β-hydroxyethyl)rutosides. The procedure was based on the use of an anionic surfactant such ...
Sequential spectrofluorimetric determination of free and total glycerol in biodiesel in a multicommuted flow system
(SPRINGER HEIDELBERG, 2011)
A new procedure for spectrofluorimetric determination of free and total glycerol in biodiesel samples is presented. It is based on the oxidation of glycerol by periodate, forming formaldehyde, which reacts with acetylacetone, ...
Spectrofluorimetry and chemometrics for investigation of norfloxacin distribution in multilamellar liposomes
(Soc Applied SpectroscopyFrederickEUA, 2005)
Complexation (cucurbit[6]uril-pyrene): Thermodynamicand spectroscopic properties
(Elsevier Science, 2014-10)
The influence of the macrocyclic compound cucurbit[6]uril (CB6) on the photophysical properties of the fluorophore pyrene (PYR) has been studied. Guest–host interaction was observed by UV–visible spectroscopy and ...
Determination of sildenafil by preconcentration on surfactant coated polymeric resin followed by spectrofluorimetry
(Elsevier, 2013-03)
The illicit addition of phosphodiesterase type-5 (PDE-5) inhibitors like sildenafil (Viagra) in product offered as herbal medicine or dietary supplement for male erectile dysfunction has concerned authorities in recent ...
Determination of sildenafil by preconcentration on surfactant coated polymeric resin followed by spectrofluorimetry
(Elsevier, 2013-06)
The illicit addition of phosphodiesterase type-5 (PDE-5) inhibitors like sildenafil (Viagra) in product offered as herbal medicine or dietary supplement for male erectile dysfunction has concerned authorities in recent ...
Sensitive ergotamine determination in pharmaceuticals and biological samples using cloud point preconcentration and spectrofluorimetric detection
(Elsevier, 2013-01)
A new cloud point extraction (CPE) method for ergotamine analysis using fluorimetric detection is described. Ergotamine from an aqueous solution was preconcentrated into a smaller surfactant-rich phase using nonionic ...
Chemometrics-assisted cyclodextrin-enhanced excitation-emission fluorescence spectroscopy for the simultaneous green determination of bisphenol A and nonylphenol in plastics
(Elsevier Science, 2015-06)
Abstract The aim of this work was to quantify two relevant priority chemicals, bisphenol A (BPA) and 4-nonylphenol (NP), coupling the sensitivity of fluorescence in organized media and the selectivity of multivariate ...
PARAFAC: uma ferramenta quimiométrica para tratamento de dados multidimensionais. Aplicações na determinação direta de fármacos em plasma humano por espectrofluorimetriaPARAFAC: a chemometric tool for multi-dimensional data treatment. Applications in direct determination of drugs in human plasma by spectrofluorimetry
(Sociedade Brasileira de Química, 2005)