Highly Selective and Sensitive Copper(II) Membrane Sensors Based on 6-Methyl-4-(1-phenylmethylidene)amino-3-thioxo-1,2,4-triazin-5-one as a New Neutral Ionophore

Zamani, Hassan Ali; Rajabzadeh, Ghadier; Ganjali, Mohammad Reza; Khatami, Sayyed Mola

doi:10.1002/elan.200503356

Cited by 69 publications

(14 citation statements)

References 43 publications

(32 reference statements)

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“…Recently, several greatly selective and sensitive polyvinyl chloride (PVC) membrane ISEs for various metal ions have been reported [17][18][19][20][21][22][23][24][25][26]. In this work, we wish to introduce a highly Fe 3?…”

Section: Introductionmentioning

confidence: 98%

Fabrication of an iron(III)-selective PVC membrane sensor based on a bis-bidentate Schiff base ionophore

Zamani

Salavati‐Niasari

2008

Transition Met Chem

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A Fe 3? ion-selective membrane sensor was fabricated from polyvinyl chloride (PVC) matrix membrane containing bis-bidentate Schiff base (BBS) as a neutral carrier, sodium tetraphenyl borate (NaTPB) as anionic excluder, and o-nitrophenyloctyl ether (NPOE) as a plasticizing solvent mediator. The effects of the membrane composition, pH, and additive anionic influence on the response properties were investigated. The best performance was obtained with a membrane containing 32% PVC, 62.5% NPOE, 3% BBS, and 2.5% NaTPB. The electrode shows a Nernstian behavior (slope of 19.3 ± 0.6) over a very wide iron ion concentration range (1.0 9 10 -7 -1.0 9 10 -2 M) and has a low detection limit (7.4 9 10 -8 M). The potentiometric response of the sensor is independent of pH of the solution in the pH range 1.9-5.1. The proposed sensor has a very low response time (\15 s) and a good selectivity relative to a wide variety of other metal ions including common alkali, alkaline earth, heavy, and transition metal ions. The electrode can be used for at least 60 days without any considerable divergence in potentials. The proposed sensor was successfully applied as an indicator electrode for the potentiometric titration of 1.0 9 10 -2 M Fe 3? ions with a 1.0 9 10 -4 M EDTA and the direct determination of Fe 3? in mineral water and wastewater samples.

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Section: Introductionmentioning

confidence: 98%

Fabrication of an iron(III)-selective PVC membrane sensor based on a bis-bidentate Schiff base ionophore

Zamani

Salavati‐Niasari

2008

Transition Met Chem

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“…Several highly selective and sensitive membrane sensors for alkaline earth and transition metal ions have been reported [8][9][10][11][12][13][14][15][16][17]. However, this study describes the development of a new ion selective sensor for the Ho(III) determination and, in particular, the use of 4-chloro-1,2-bis(2-pyridinecarboxamido)benzene (CBPB) as an ionophore for the preparation of a highly Ho(III) ion-selective electrode (Fig.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a novel holmium(III) PVC membrane sensor based on 4-chloro-1,2-bis(2-pyridinecarboxamido)benzene as a neutral ionophore

et al. 2007

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This paper introduces the development of an original PVC membrane electrode, based on 4-chloro-1,2-bis(2-pyridinecarboxamido)benzene (CBPB) as a suitable carrier for the Ho 3+ ion. The electrode presents a Nernstian slope of 19.7 ± 0.3 mV per decade for the Ho 3+ ions across a broad working concentration range from 1.0 · 10 -6 to 1.0 · 10 -2 M. The lower detection limit was 8.5 · 10 -7 M in the pH range 2.7-9.8, while the response time was rapid (<15 s). Therefore, this potentiometric sensor displayed good selectivity for a number of cations such as alkali, alkaline earth, transition and heavy metal ions. The practical applicability of the electrode was demonstrated by its use as an indicator electrode in the potentiometric titration of Ho 3+ ions with EDTA and in the determination of F -in mouth wash 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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Highly Selective and Sensitive Copper(II) Membrane Sensors Based on 6-Methyl-4-(1-phenylmethylidene)amino-3-thioxo-1,2,4-triazin-5-one as a New Neutral Ionophore

Cited by 69 publications

References 43 publications

Fabrication of an iron(III)-selective PVC membrane sensor based on a bis-bidentate Schiff base ionophore

Fabrication of an iron(III)-selective PVC membrane sensor based on a bis-bidentate Schiff base ionophore

Fabrication of a novel holmium(III) PVC membrane sensor based on 4-chloro-1,2-bis(2-pyridinecarboxamido)benzene as a neutral ionophore

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

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