A novel PVC-membrane optical sensor for highly sensitive and selective determination of UO22+ ion based on a recently synthesized benzo-substituted macrocyclic diamide and dibenzoylmethane

Shamsipur, Mojtaba; Zargoosh, Kiomars; Mizani, Farhang; Rostami, F.

doi:10.1016/j.saa.2010.05.030

Cited by 14 publications

(6 citation statements)

References 44 publications

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“…In Table 6, the main analytical characteristics (i.e., response time, dynamic range, pH and detection limit) of the proposed uorescent sensor were compared with the recent reported uranyl optodes. 14,[53][54][55][56][57][58][59] As it can be seen from the data summarized in Table 4, the proposed sensor is signicantly improved compared to the previously reported uranyl sensors in terms of response time, dynamic range and detection limit. Moreover, due to its highly selective behavior, the proposed uorescence sensor is applicable to the accurate determination of the uranyl ion in real samples of complex matrices, as shown in the section of analytical applications.…”

Section: Comparison With Previous Optical Sensors For Uranium Ionmentioning

confidence: 84%

“…3 Many methods have been developed for the determination of uranium, based on different techniques, such as ion selective electrodes, 4,5 nuclear techniques, 6 inductively coupled plasmamass spectrometry, 7,8 electrochemistry, 9-11 uorimetry 12,13 and spectrophotometry. [14][15][16] These methods are either time consuming, involving multiple sample manipulations or too expensive for most analytical laboratories. It is worth mentioning that the development of optical sensors has now become a rapidly expanding area of analytical chemistry, because they offer the advantages of simple preparation, reasonable selectivity and sensitivity and no need for separate reference devices.…”

Section: Introductionmentioning

confidence: 99%

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Highly selective and sensitive fluorescence optode membrane for uranyl ion based on 5-(9-anthracenylmethyl)-5-aza-2,8-dithia[9],(2,9)-1,10-phenanthrolinophane

et al. 2015

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A highly selective and sensitive fluorescent sensor for the determination of uranyl ion is developed. The\ud sensing membrane was prepared by incorporating 5-(9-anthracenylmethyl)-5-aza-2,8-dithia[9],(2,9)-1,10-\ud phenanthrolinophane as fluoroionophore in the plasticized poly(vinyl chloride) membrane containing 2-\ud nitrophenyloctylether as plasticizer. The proposed sensor displays a wide linear response range of 1.0 x\ud 10-10 to 1.0 x 10-3 M with a low limit of detection of 2.7 x 10-11 M in solution at pH 4.0. This sensor has\ud a relatively fast response time of less than three min. In addition to high stability and reproducibility, it\ud shows a unique selectivity towards uranyl ion with respect to common coexisting cations. The sensor can\ud be regenerated by exposure to a solution of ethylene diamine tetraacetic acid. The proposed sensor was\ud then applied to the determination of uranyl in water samples with satisfactory result

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Section: Comparison With Previous Optical Sensors For Uranium Ionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Highly selective and sensitive fluorescence optode membrane for uranyl ion based on 5-(9-anthracenylmethyl)-5-aza-2,8-dithia[9],(2,9)-1,10-phenanthrolinophane

et al. 2015

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“…[18]. In this work as a preliminary study in designing of a biosensor, we report on the synthesis and antimicrobial evaluation of some macrocyclic crown ethers including amide, sulfonamide, and disulfide moieties (Scheme 1).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and antimicrobial activity of some new macrocyclic bis-sulfonamide and disulfides

et al. 2011

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“…So far, many different methods have been developed in order to determine this analyte with high selectivity and sensitivity. For this purpose, various techniques, such as fluorimetry, 34,35 spectrophotometry 36,37 and inductively coupled plasma mass spectrometry, 38,39 have been used. However, despite of satisfactory parameters of these techniques, high price of instruments and multistage sample preparation cause that less complicated techniques are required.…”

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confidence: 99%

Phosphorothioated Oligonucleotides as Receptor Layers in Electrochemical Detection of Uranyl Cation

Bala

Rębiś

Górski

2017

J. Electrochem. Soc.

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The feasibility of using gold electrodes modified with phosphorothioated oligonucleotides (PTOs) for determination of uranyl cation is described. PTOs are able of anchoring to gold surface via phosphorothioate linkers, present in its backbone. This approach is advantageous due to lack of the necessity of chemical activation before use and low cost. It was shown that the sensor sensitivity highly dependents on the incubation time in the sample solution. The developed biosensor demonstrated high selectivity toward UO22+ ion with minor interferences from other metal ions. A linear relationship between the changes in current signal derived from methylene blue – used as a redox marker – and the uranyl ion concentration up to 100 nmol·L−1 was obtained, with a detection limit of 14.7 nmol·L−1. In order to characterize the morphology of gold surface modified with DNA-SH or PTO, atomic force microscopy (AFM) was used. Interactions between UO22+ and the receptor layer (PTO) were studied using square wave voltammetry (SWV) and electrochemical impedance spectroscopy (EIS).

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A novel PVC-membrane optical sensor for highly sensitive and selective determination of UO22+ ion based on a recently synthesized benzo-substituted macrocyclic diamide and dibenzoylmethane

Cited by 14 publications

References 44 publications

Highly selective and sensitive fluorescence optode membrane for uranyl ion based on 5-(9-anthracenylmethyl)-5-aza-2,8-dithia[9],(2,9)-1,10-phenanthrolinophane

Highly selective and sensitive fluorescence optode membrane for uranyl ion based on 5-(9-anthracenylmethyl)-5-aza-2,8-dithia[9],(2,9)-1,10-phenanthrolinophane

Synthesis and antimicrobial activity of some new macrocyclic bis-sulfonamide and disulfides

Phosphorothioated Oligonucleotides as Receptor Layers in Electrochemical Detection of Uranyl Cation

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