Determination of sulphathiazole and sulphanilamide by photochemically induced fluorescence and first-derivative fluorescence

García, M.C.; Díez, N. Mora; Gil, Dongkyun; López, Francisco Salinas

doi:10.1016/j.jpba.2004.12.024

Cited by 18 publications

(4 citation statements)

References 31 publications

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“…They exhibit potential toxicity to human beings and aquatic organisms, and are responsible for the emergence of antibiotic resistant bacteria [4] . Although relevant, few methods have been developed for quantification of SFD in pharmaceuticals and other matrices, including chromatographic methods [5] , [6] , [7] , [8] and fluorescence [9] . These methods are usually expensive, time consuming, require sample pre-treatments in some cases, and involve great labor [10] .…”

Section: Introductionmentioning

confidence: 99%

Electrooxidation of sulfanilamide and its voltammetric determination in pharmaceutical formulation, human urine and serum on glassy carbon electrode

Ferraz

Guimarães

Profeti

et al. 2018

Journal of Pharmaceutical Analysis

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For the first time, sulfanilamide (SFD) was determined in otologic solution, human urine and serum by electroanalytical techniques on glassy carbon electrode (GCE). The cyclic voltammetry (CV) experiments showed an irreversible oxidation peak at +1.06 V in 0.1 mol/L BRBS (pH = 2.0) at 50 mV/s. Different voltammetric scan rates (from 10 to 250 mV/s) suggested that the oxidation of SFD on the GCE was a diffusion-controlled process. Square-wave voltammetry (SWV) method under optimized conditions showed a linear response to SFD from 5.0 to 74.7 μmol/L (R = 0.999) with detection and quantification limits of 0.92 and 3.10 μmol/L, respectively. The developed SWV method showed better results for detection limit and linear range than the chronoamperometry method. It has been successfully applied to determine SFD concentration in pharmaceutical formulation, human urine and serum samples with recovery close to 100%.

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Section: Introductionmentioning

confidence: 99%

Electrooxidation of sulfanilamide and its voltammetric determination in pharmaceutical formulation, human urine and serum on glassy carbon electrode

Ferraz

Guimarães

Profeti

et al. 2018

Journal of Pharmaceutical Analysis

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“…For this reason, the development of techniques that allow the direct determination of related compounds through the careful selection of instrumental variables is of great interest. Among these techniques, synchronous and derivative fluorescence spectrometry is the most popular .…”

Section: Introductionmentioning

confidence: 99%

“…The application of derivative techniques to luminescence spectrometry has great advantages . Differentiation narrows spectral bandwidths and enhances minor spectral features, thus improving the selectivity of multi‐component spectra.…”

Section: Introductionmentioning

confidence: 99%

Derivative emission spectrofluorimetry for the simultaneous determination of guaifenesin and phenylephrine hydrochloride in pharmaceutical tablets

2014

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Rapid, simple and sensitive derivative emission spectrofluorimetric methods have been developed for the simultaneous analysis of binary mixtures of guaifenesin (GUA) and phenylephrine hydrochloride (PHE). The methods are based upon measurement of the native fluorescence intensity of the two drugs at λex = 275 nm in methanolic solutions, followed by differentiation using first (D1) and second (D2) derivative techniques. The derivative fluorescence intensity-concentration plots were rectilinear over a range of 0.1-2 µg/mL for both GUA and PHE. The limits of detection were 0.027 (D1, GUA), 0.025 (D2, GUA), 0.031 (D1, PHE) and 0.033 (D2, PHE) µg/mL and limits of quantitation were 0.089 (D1, GUA), 0.083 (D2, GUA), 0.095 (D1, PHE) and 0.097 (D2, PHE) µg/mL. The proposed derivative emission spectrofluorimetric methods (D1 and D2) were successfully applied for the determination of the two compounds in binary mixtures and tablets with high precision and accuracy. The proposed methods were fully validated as per ICH guidelines.

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“…To decrease detection limits, several methods have been attempted. Mahedero Garcia et al 13 used room temperature photochemically induced fluorescence (RTPF) and RTPF coupled with a derivative (D‐RTPF) to determine sulfathiazole and also used the emission spectrum with the derivative to determine sulfanilamide. The determination of sulfonamides by sequential injection analysis with chemiluminescent detection has also been reported; the calibration curves were linear between 0.01 and 0.5 mmol L −1 sulfonamide 14…”

Section: Introductionmentioning

confidence: 99%

Development of a chemiluminescent enzyme‐linked immunosorbent assay for five sulfonamide residues in chicken muscle and pig muscle

et al. 2008

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BACKGROUND: An enzyme-linked immunosorbent assay (ELISA) based on polyclonal antibodies with enhanced chemiluminescent (ECL) detection of sulfonamides in food samples has been optimised and characterised. The specificity of the assay was assessed by determining cross-reactivities with a set of 16 sulfonamides. The aim of this study was to develop a method for determining sulfonamides with high sensitivity.

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Determination of sulphathiazole and sulphanilamide by photochemically induced fluorescence and first-derivative fluorescence

Cited by 18 publications

References 31 publications

Electrooxidation of sulfanilamide and its voltammetric determination in pharmaceutical formulation, human urine and serum on glassy carbon electrode

Electrooxidation of sulfanilamide and its voltammetric determination in pharmaceutical formulation, human urine and serum on glassy carbon electrode

Derivative emission spectrofluorimetry for the simultaneous determination of guaifenesin and phenylephrine hydrochloride in pharmaceutical tablets

Development of a chemiluminescent enzyme‐linked immunosorbent assay for five sulfonamide residues in chicken muscle and pig muscle

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