Determination of phenol, resorcinol and hydroquinone in air samples by synchronous fluorescence using partial least-squares (PLS)

Pistonesi, Marcelo Fabián; Nezio, María Susana Di; Centurión, María Eugenia; Palomeque, Miriam E.; Lista, Adriana G.; Band, Beatriz Susana Fernández

doi:10.1016/j.talanta.2005.12.050

Cited by 310 publications

(122 citation statements)

References 15 publications

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“…Therefore, a highly sensitive and selective analytical method is necessary for the simultaneous determination of the three dihydroxybenzene isomers. Up to now, various methods have been exploited for the determination of the dihydroxybenzenes, such as high performance liquid chromatography (HPLC) [3,4], spectrophotometry [5,6] Electrochemiluminescence [7], synchronous fluorescence [8], gas chromatography/mass spectrometry [9], capillary electrochromatography [10], pH-based-flow injection analysis [11], and electrochemical methods [12][13][14][15][16][17][18][19][20][21][22][23]. Among these methods, electrochemical method is of particular interest due to its high sensitivity, low cost, good selectivity, and rapid detection.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Determination of Hydroquinone, Catechol and Resorcinol at Graphene Doped Carbon Ionic Liquid Electrode

Zhao

2012

International Journal of Electrochemistry

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A new composite electrode has been prepared with doping graphene into the paste consisting graphite and ionic liquid, n-octyl-pyridinum hexafluorophosphate (OPFP). This electrode shows an excellent electrochemical activity for the redox of hydroquinone (HQ), catechol (CC), and resorcinol (RS). In comparison with bare paste electrode, the redox peaks of three isomers of dihydroxybenzene can be obviously, simultaneously observed at graphene doping paste electrode. Under the optimized condition, the simultaneous determination of HQ, CC, and RS in their ternary mixture can be carried out with a differential pulse voltammetric technique. The peak currents are linear to the concentration of HQ, CC, and RS in the range form 1 × 10 −5 to 4 × 10 −4 , 1 × 10 −5 to 3 × 10 −4 , and 1 × 10 −6 to 1.7 × 10 −4 mol L −1 , respectively. The limits of detection are 1.8 × 10 −6 mol L −1 for HQ, 7.4 × 10 −7 mol L −1 for CC, and 3.6 × 10 −7 M for RS, respectively.

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Section: Introductionmentioning

confidence: 99%

Simultaneous Determination of Hydroquinone, Catechol and Resorcinol at Graphene Doped Carbon Ionic Liquid Electrode

Zhao

2012

International Journal of Electrochemistry

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“…In conventional fluorescence spectroscopy, excitation and emission spectra are used for the analysis. In case of overlapping spectra, the synchronous fluorescence spectroscopy (SFS) [2][3][4][5][6][7][8][9] may help with its sharper and more separated spectral bands. Among the several variations of SFS and derivative SFS we will focus now on the matrix isopotential synchronous fluorimetry (MISF) [10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Quick Multicomponent Analysis Based on Matrix Isopotential Synchronous Fluorimetry

Makkai

Erostyák

2012

ISRN Spectroscopy

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Fast and precise methods are important in chemical and physical analysis, but determination of concentration of selected components in mixtures may have special difficulties. Excitation-emission matrices (EEM) are widely used in characterizing fluorescence emission. Based on these primary data, we present an improvement of matrix isopotential synchronous fluorimetry (MISF) and a method which ensures a very fast multicomponent analysis. MISF is generally combined with derivative technique (DMISF) to be able to eliminate the contribution of the background emission. Unfortunately, it is too sensitive to noises and fluctuations; thus the concentration region where it can be used, was limited until now. Our first aim was to reduce the influence of measurement errors and to increase the sensitivity of known MISF method by more than one order of magnitude. As a further result, using improved MISF, we got a method which ensures very fast determination of the wanted compound's concentration both in presence of one-or even two-component background of unknown concentration.

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“…3 At present, the analytical methods for hydroquinone are mainly spectrophotometry, [4][5][6] chemiluminescence analysis, 7,8 electrochemical analysis, [9][10][11][12] chromatography, [13][14][15] and fluorometry. 16,17 Some of these methods are expensive or time-consuming or the organic solvents being used are toxic. Pistonesi et al 16 have reported the simultaneous determination of phenol, resorcinol and hydroquinone in tobacco smoke samples by a synchronous fluorescence method and by using a partial least-squares (PLS) algorithm.…”

Section: Introductionmentioning

confidence: 99%

“…16,17 Some of these methods are expensive or time-consuming or the organic solvents being used are toxic. Pistonesi et al 16 have reported the simultaneous determination of phenol, resorcinol and hydroquinone in tobacco smoke samples by a synchronous fluorescence method and by using a partial least-squares (PLS) algorithm. However, their method is not effective in terms of selectivity.…”

Section: Introductionmentioning

confidence: 99%

A Catalytic Resonance Fluorometry Method for Determination of Hydroquinone and Its Applications

Tan

Liu

et al. 2009

ANAL. SCI.

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Pyronin Y (PY) has a strong resonance fluorescence in sulfuric acid medium. The characteristics of the resonance fluorescence spectra and the factors affecting the spectra were studied. A catalytic resonance fluorometry method for the determination of hydroquinone was proposed based on the catalytic effect of hydroquinone on the oxidation of PY by potassium bromate. The oxidation of PY resulted in the decrease of the resonance fluorescence intensity. The influences of several variables on the sensitivity were studied. At the optimized conditions, the decrease of the resonance fluorescence intensity was in proportion to the concentration of hydroquinone in the range of 4.42 -1.60 ¥ 10 3 mg l -1 , and the detection limit was 1.46 mg l -1 . The proposed method was applied successfully for the determination of trace hydroquinone in environment samples. The relative standard deviation was less than 3.90% and the recoveries were in the range of 95.2 -104.0%.

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Determination of phenol, resorcinol and hydroquinone in air samples by synchronous fluorescence using partial least-squares (PLS)

Cited by 310 publications

References 15 publications

Simultaneous Determination of Hydroquinone, Catechol and Resorcinol at Graphene Doped Carbon Ionic Liquid Electrode

Simultaneous Determination of Hydroquinone, Catechol and Resorcinol at Graphene Doped Carbon Ionic Liquid Electrode

Quick Multicomponent Analysis Based on Matrix Isopotential Synchronous Fluorimetry

A Catalytic Resonance Fluorometry Method for Determination of Hydroquinone and Its Applications

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