Silver nanoparticle induced chemiluminescence of the hexacyanoferrate-fluorescein system, and its application to the determination of catechol

Han, Song; Liu, Bibi; Liu, Yan; Fan, Zheyan

doi:10.1007/s00604-015-1704-4

Cited by 19 publications

(3 citation statements)

References 29 publications

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“…However, the light absorbance of CT is not changed in the presence of QDs (curve c). It can be stated that CT as a reducing agent was able to react with KIO 4 and then decreased the formation of excited state QDs, and then the energy absorption of fluorescein reduced . Finally, the CL emission was inhibited.…”

Section: Resultsmentioning

confidence: 99%

Enhanced chemiluminescence of the fluorescein–KIO₄ system by CdTe quantum dots for determination of catechol

Cai

Yang

He³

et al. 2018

Luminescence

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In this paper, a novel chemiluminescence (CL) system was introduced based on the use of CdTe quantum dots (QDs) with the mixture solutions of fluorescein and potassium periodate (KIO ) in alkaline medium. The CL signal of an ultra-weak system was strongly enhanced in the presence of QDs. The application of CdTe QDs-fluorescein-KIO system is reported for the first time. It was found that catechol had a diminishing effect on the CL reaction. Under optimal experimental conditions, CL intensity decreased linearly in a 1 to 100 μM catechol concentration range, with a 0.18 μM detection limit. A possible reaction mechanism was proposed according to the results of kinetic analyses, CL spectra, ultraviolet-visible and fluorescence spectra. The results pointed to an efficient energy transfer between the CL energy donor CdTe QDs and acceptor fluorescein. Finally, the CL method was successfully applied to the determination of catechol in environmental water samples.

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Section: Resultsmentioning

confidence: 99%

Enhanced chemiluminescence of the fluorescein–KIO₄ system by CdTe quantum dots for determination of catechol

Cai

Yang

He³

et al. 2018

Luminescence

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“…Myriads of articles have appeared in the literature describing the wide variety of applications of these fascinating materials in analytical, biomedical, optical, electrical and magnetic fields [1][2][3][4][5][6][7][8][9]. The major attraction to these materials is due to the size and shape dependent optical, catalytic and electro-magnetic properties [10].…”

Section: Introductionmentioning

confidence: 99%

Luminol Chemiluminescence Catalyzed by Silver Nanoparticles for the Sensitive Determination of Penicillamine

Suliman

Al-Hadhrami²

2018

SQU Journal for Science

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A sequential injection method for the determination of penicillamine (PA) was developed based on quenching the chemiluminescence generated by oxidation of luminol by hydrogen peroxide in presence of silver nanoparticles (AgNPs). The chemiluminescence (CL) of the reaction was found to greatly enhance in presence of AgNPs due to the increased catalyst surface area. The method was sensitive and found suitable for analysis of penicillamine in pharmaceutical preparations. Linear calibration curve is obtained in the range 0.2-1.0 g mL -1 with a relative standard deviation less than 2%. A recovery percent of 102.3 0.2 was obtained with the tablets matrix indicating reasonable selectivity of the method for PA in tablets. The mechanism of quenching of the CL reaction was investigated by UV-Visible spectroscopy and transmission electron microscopy as well as by theoretical calculations using DFT-B3LYP method. The covalent attachment of PA to the AgNPs triggers aggregation of the particles thereby diminishing the surface significantly. The method was applied for the assay of PA in pharmaceutical preparations. Keywords

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“…Many analytical approaches (Gas chromatography, mass spectrometry, chemiluminescence, electrochemical and fluorescence) have been made to detect the quantitative determination of CC and HQ. [6][7][8][9][10][11] These methods, however offer limited portability and are not cost efficient in comparison to electrochemical methods. Though electrochemical sensing offers a solution in terms of highly sensitive and easy operation, the chemical and structural similarity of CC and HQ causes overlapping of peak potentials which makes difficulties for the simultaneous determination of CC and HQ using electrochemical methods.…”

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confidence: 99%

Hydrothermally Grown SnO₂ Flowers as Efficient Electrode Modifier for Simultaneous Detection of Catechol and Hydroquinone

Ahmad

Kumar

Mobin

2019

J. Electrochem. Soc.

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Tin oxide (SnO 2 ) flowers were synthesized by hydrothermal method using SnCl 2 .H 2 O as precursor. The formation/phase purity of the hydrothermally grown SnO 2 flowers was determined by PXRD analysis. The morphological surface structure of SnO 2 flowers was checked by SEM analysis whereas the surface area was examined by BET analysis. Further, SnO 2 flowers were deposited on the neat and clean surface of the glassy carbon electrode using drop casting method. This constructed electrode was employed for simultaneous sensing of catechol and hydroquinone using cyclic and square wave voltammetry. The fabricated electrode exhibited good limit of detection of 3.74 μM and 1.12 μM toward catechol and hydroquinone sensing respectively. Moreover, this SnO 2 flowers modified glassy carbon electrode also shown good selectivity, repeatability and stability for the simultaneous determination of catechol and hydroquinone.

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Silver nanoparticle induced chemiluminescence of the hexacyanoferrate-fluorescein system, and its application to the determination of catechol

Cited by 19 publications

References 29 publications

Enhanced chemiluminescence of the fluorescein–KIO₄ system by CdTe quantum dots for determination of catechol

Enhanced chemiluminescence of the fluorescein–KIO₄ system by CdTe quantum dots for determination of catechol

Luminol Chemiluminescence Catalyzed by Silver Nanoparticles for the Sensitive Determination of Penicillamine

Hydrothermally Grown SnO₂ Flowers as Efficient Electrode Modifier for Simultaneous Detection of Catechol and Hydroquinone

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Silver nanoparticle induced chemiluminescence of the hexacyanoferrate-fluorescein system, and its application to the determination of catechol

Cited by 19 publications

References 29 publications

Enhanced chemiluminescence of the fluorescein–KIO4 system by CdTe quantum dots for determination of catechol

Enhanced chemiluminescence of the fluorescein–KIO4 system by CdTe quantum dots for determination of catechol

Luminol Chemiluminescence Catalyzed by Silver Nanoparticles for the Sensitive Determination of Penicillamine

Hydrothermally Grown SnO2 Flowers as Efficient Electrode Modifier for Simultaneous Detection of Catechol and Hydroquinone

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Product

Resources

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Enhanced chemiluminescence of the fluorescein–KIO₄ system by CdTe quantum dots for determination of catechol

Enhanced chemiluminescence of the fluorescein–KIO₄ system by CdTe quantum dots for determination of catechol

Hydrothermally Grown SnO₂ Flowers as Efficient Electrode Modifier for Simultaneous Detection of Catechol and Hydroquinone