Fabrication of a highly selective Eu(III) membrane sensor based on a new S–N hexadentates Schiff's base

Ganjali, Mohammad Reza; Norouzi, Parviz; Daftari, Azadeh; Faridbod, Farnoush; Salavati‐Niasari, Masoud

doi:10.1016/j.snb.2006.03.028

Cited by 93 publications

(25 citation statements)

References 25 publications

(19 reference statements)

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“…Thus, the optode response decreases. At pH values lower than 3, the heteroatoms of the ligand in the membrane of the optode are protonated and not able to form complex with Lu(III) ions in the solution 33 .…”

Section: Fig 3 Ph Effect On the Optode Film Responsementioning

confidence: 99%

Design and fabrication of a novel optical sensor for determination of trace amounts of lutetium ion

Zare‐Dorabei¹,

Ganjali²,

Rahimi³

et al. 2013

10.5267/j.ccl

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In this study, for the first time we report a highly selective and sensitive lutetium ions chemical optical sensor based on immobilization of a asymmetrically S-N Schiff's base, namely N-(thien-2-ylmethylene)pyridine-2,6-diamine (TPD) on a triacetylcellulose membrane. This optode exhibits a linear range of 5.0 ×10 -7 -1.0 ×10 -5 M of the Lu(III) ion concentration with a detection limit of 9.3 ×10 -8 M at a wavelength of 336 nm. The influence of responsible factors for improving sensitivity of the sensor was studied and identified. Response time of the newly designed optode was within 20-30 s depending on the Lu(III) ion concentration. Response of the optical sensor is independent of the pH of the solution in the range of 3.0-9.0. It manifests advantages of fast response time, low detection limit and most significantly, very good selectivity with respect to a number of lanthanide ions. The sensor can readily be regenerated with thiourea solutions and its response was reversible and reproducible. This optode was applied to the determination of Lu(III) in aqueous and CRM samples.

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Section: Fig 3 Ph Effect On the Optode Film Responsementioning

confidence: 99%

Design and fabrication of a novel optical sensor for determination of trace amounts of lutetium ion

Zare‐Dorabei¹,

Ganjali²,

Rahimi³

et al. 2013

10.5267/j.ccl

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“…The geometric and cavity control of host-guest complexation and modulation of lipophilicity in SBs provide remarkable selectivity [5], sensitivity and stability for specific ion. Thus, SB have attracted increasing attention for determining rare earth metals such as Gd 3+ [6], Tb 3+ [7], Ce 3+ [8,10], Nd 3+ [9], La 3+ [11], Cr 3+ [12], EU 3+ [13]. The 1,3-diphenylpropane-1,3-diylidenebis(azan-1-ylidene) diphenol (DPDBD) is a newly synthesized Schiff base and is known to form complex with Praseodymium.…”

Section: Introductionmentioning

confidence: 99%

Comparative studies of praseodymium(III) selective sensors based on newly synthesized Schiff's bases

Gupta

Goyal

Pal

et al. 2009

Analytica Chimica Acta

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a b s t r a c tPraseodymium ion selective polyvinyl chloride (PVC) membrane sensors, based on two new Schiff's bases 1,3-diphenylpropane-1,3-diylidenebis(azan-1-ylidene)diphenol (M 1 ) and N,Nbis(pyridoxylideneiminato) ethylene (M 2 ) have been developed and studied. The sensor having membrane composition of PVC: o-NPOE: ionophore (M 1 ): NaTPB (w/w; mg) of 150: 300: 8: 5 showed best performances in comparison to M 2 based membranes. The sensor based on (M 1 ) exhibits the working concentration range 1.0 × 10 −8 to 1.0 × 10 −2 M with a detection limit of 5.0 × 10 −9 M and a Nernstian slope 20.0 ± 0.3 mV decade −1 of activity. It exhibited a quick response time as <8 s and its potential responses were pH independent across the range of 3.5-8.5.The influence of the membrane composition and possible interfering ions have also been investigated on the response properties of the electrode. The sensor has been found to work satisfactorily in partially non-aqueous media up to 15% (v/v) content of methanol, ethanol or acetonitrile and could be used for a period of 3 months. The selectivity coefficients determined by using fixed interference method (FIM) indicate high selectivity for praseodymium(III) ions over wide variety of other cations. To asses its analytical applicability the prepared sensor was successfully applied for determination of praseodymium(III) in spiked water samples.

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“…[12][13][14][15][16][17][18] Recently, several greatly selective and sensitive PVC-membrane ionselective electrodes for various metal ions have been reported. [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] Nevertheless, this paper focuses on the introduction of a highly siver(I)-selective sensor based on Dilaktam Crown ether (DLCE) (Fig. 1), as a novel neutral ionophore for monitoring silver concentration.…”

Section: Introductionmentioning

confidence: 99%

A Silver(i) PVC-Membrane Sensor Based on Synthesized Dilaktam Crown Ether

Masrournia

Zamani

Mohamadzadeh

et al. 2009

J. Chil. Chem. Soc.

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In this work, we introduce a highly selective and sensitive silver(I) PVC-membrane sensor. Dilaktam Crown ether (DLCE) was used as a membrane-active component to prepare a highly sensitive Ag(I)-selective polymeric membrane electrode. This sensor illustrated very good selectivity and sensitivity towards silver ions over a wide variety of cations, including alkali, alkaline earth, transition and heavy metal ions. The sensor exhibited a Nernstian behavior (with a slope of 59.8 ± 0.2 mV per decade) for a concentration range (1.0 × 10 -5__ 1.0 × 10 -1 M) with a detection limit of 6.8×10 -6 M. It displayed a response time in the whole concentration range (~20 s) and its usage exceeded a 75 days period in the pH range of 5.1-7.2. The proposed electrode application was found to be successful as an indicator electrode in the titration with NaCl.

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Fabrication of a highly selective Eu(III) membrane sensor based on a new S–N hexadentates Schiff's base

Cited by 93 publications

References 25 publications

Design and fabrication of a novel optical sensor for determination of trace amounts of lutetium ion

Design and fabrication of a novel optical sensor for determination of trace amounts of lutetium ion

Comparative studies of praseodymium(III) selective sensors based on newly synthesized Schiff's bases

A Silver(i) PVC-Membrane Sensor Based on Synthesized Dilaktam Crown Ether

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