Copper(II)-selective membrane electrode based on a recently synthesized naphthol-derivative Schiff's base

Alizadeh, Naader; Ershad, Sohrab; Naeimi, Hossein; Sharghi, Hashem; Shamsipur, Mojtaba

doi:10.1007/s002160051514

Cited by 110 publications

(69 citation statements)

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“…Table 4 compared the selectivity coefficients of the Cu(II) sensor with those of the best previously Cu(II) electrodes reported in the literature by other researchers. 8,[11][12][13][14][15][16][17][18][19][20] As it is obvious, the selectivity coefficients of the electrode for majority of cations, that tested is superior respect with the best previously reported copper sensor.…”

Section: Selectivity Of the Cu(ii) Electrodementioning

confidence: 99%

“…1,5 A wide variety of neutral carriers, including small size thia-substituted crown ethers, 6,7 benzo-substituted macrocyclic diamides, 8 anthraquinone derivatives, 9 acyclic neutral ligands with dithiocarbamate groups, 10,11 and with nitrogen atoms, 12 hydroxamate derivatives, 13 aza-thioether crowns, 14 calix [4]arenas, 15 naphthol derivatives, 16 and Schiff's bases, [17][18][19][20][21][22] have been used as carriers in the construction of copper(II) ion selective membrane electrodes. However, most of these copper sensors have problems such as: (i) narrow working concentration range, (ii) high detection limit and (iii) strong interfering effect of cations as follow Fe 3+ , Co 2+ , Ni 2+ , Hg 2+ , Ag 2+ , Sr 2+ , Na + , Cs + and K + .…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of 4-amino-6-methyl-1,2,4-triazin-5-one-3-thione and its application in construction of a highly copper(II) ion-selective electrochemical sensor

Zamani¹,

Rajabzadeh²,

Firouz³

et al. 2005

J. Braz. Chem. Soc.

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Um sensor altamente seletivo para Cu(II) usando 4-amino-6-metil-1,2,4-triazina-5-ona-3-tiona (AMTOT) como material seletivo, foi desenvolvido utilizando uma membrana de PVC. O eletrodo exibe um intervalo dinâmico linear entre 1,0×10 -1 e 1,0×10 -6 mol L -1 , com resposta Nernsteniana de 29,3 ± 0,6 mV por década e um limite de detecção de 6,2×10 -7 mol L -1 . A resposta do eletrodo é independente do pH, no intervalo entre 2,5 e 7,0. O sensor possui a vantagem de apresentar um tempo de condicionamento pequeno, uma rápida velocidade de resposta (< 20 s) e especialmente, uma boa seletividade frente a metais pesados e de transição, e a alguns cátions mono, di e trivalentes. O eletrodo pode ser usado por até 9 semanas sem consideráveis divergências de potencial. O eletrodo proposto foi aplicado com sucesso na determinação de cobre em águas de descarte, oriundas de plantas eletroquímicas de cobre e como eletrodo indicador na titulação potenciométrica de íons Ca(II) com EDTA.A highly Cu(II) ion-selective PVC membrane sensor based on 4-Amino-6-methyl-1,2,4-triazin-5-one-3-thione (AMTOT) as an excellent sensing material was developed. The electrode exhibits a linear dynamic range between 1.0×10 -1 and 1.0×10 -6 mol L -1 , with a near Nernstian slope of 29.3 ± 0.6 mV per decade and a detection limit of 6.2×10 -7 mol L -1 . The sensor response is independent of the pH of the solution in the pH range of 2.5 -7.0. The sensor possesses the advantages of short conditioning time, fast response time (<20 s), and especially, very good selectivity towards transition and heavy metal, and some mono, di and trivalent cations. The electrode can be used for at least 9 weeks without any considerable divergence in the potentials. The proposed electrode was successfully applied to the determination of copper in wastewater of copper electroplating samples and as an indicator electrode in potentiometric titration of Ca(II) ions with EDTA.Keywords: potentiometry, copper sensor, PVC membrane, 4-amino-6-methyl-1,2,4-triazin-5-one-3-thione IntroductionDuring the last decade, there has been a renewed resurgence in developing potentiometric membrane electrodes as devices for rapid, accurate, low cost and non destructive analysis of different samples with small volume samples.Due to the necessary need for selective copper measurements in many copmplex biological systems, 1,2 geochemical, 3 environmental, medicinal and industrial samples, 4 the search for new selective and sensitive PVCmembrane electrodes for its quick measurement is still a challenging goal. We have recently reported a number of highly selective and sensitive membrane sensors for various metal ions. [23][24][25] In this paper, we wish to introduce a highly copper(II)-selective sensor based on 4-Amino-6-methyl-1,2,4-triazin-5-one-3-thione (AMTOT), as a novel neutral ionophore for monitoring of copper in industrial samples (Figure 1). Experimental ReagentsReagent grade 2-nitrophenyl octyl ether (NPOE), dibutyl phthalate (DBP), benzyl acetate (BA), nitrobenzene (NB), sodium tetraphen...

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Section: Selectivity Of the Cu(ii) Electrodementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of 4-amino-6-methyl-1,2,4-triazin-5-one-3-thione and its application in construction of a highly copper(II) ion-selective electrochemical sensor

Zamani¹,

Rajabzadeh²,

Firouz³

et al. 2005

J. Braz. Chem. Soc.

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“…They are used as the catalyst in reactions. These compounds also find many important catalytic applications, ranging from asymmetric epoxidation [16], Lewis acid assisted organic transformations [17], solid phase extraction of metal ions [18] to various types of polymerization [19][20][21][22] as well as their application for the preparation of ion selective electrodes [23][24][25][26][27]. Recently, Ayla Balaban Gunduzalp and co-worker have been prepared and characterized complexes of tetra dentate Schiff base ligands [28].…”

Section: Introductionmentioning

confidence: 99%

Convenient and mild synthesis and characterisation of some new Schiff bases

Naeimi¹,

Nazifi²

2012

Bull. Chem. Soc. Eth.

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ABSTRACT. Some new Schiff bases were synthesized by the condensation between 2-hydroxy-1-naphthaldehyde and various diamines in 2:1 molar ratio. These pure products were prepared in methanol solution under mild reaction conditions to afford good to high yields. The structures of the products have been characterized by several techniques using elemental analysis (CHN), FT-IR, 1 H NMR, 13 C NMR and mass spectra.

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“…for epoxidation of olefins, 14 alkene cyclopropanation, 15 trimethylsilylcyanation of ketones, 16 asymmetric oxidation of methyl phenyl sulfide, 17 enantioselective epoxidation of silylenol, 18 and ring-opening polymerization of lactide 19 ). Though their synthesis has been extensively investigated, [20][21][22][23][24][25] many procedures suffer from drawbacks that can include low yield, long reaction times, the need for large amounts of solvent that then have to be removed, and difficult work-up.…”

Section: Introductionmentioning

confidence: 99%

Solvent-free synthesis of some N4O2, N4S2 and N6 Schiff-base ligands assisted by microwave irradiation

Keypour¹,

Rezaeivala²,

Fall³

et al. 2009

Arkivoc

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Copper(II)-selective membrane electrode based on a recently synthesized naphthol-derivative Schiff's base

Cited by 110 publications

References 3 publications

Synthesis of 4-amino-6-methyl-1,2,4-triazin-5-one-3-thione and its application in construction of a highly copper(II) ion-selective electrochemical sensor

Synthesis of 4-amino-6-methyl-1,2,4-triazin-5-one-3-thione and its application in construction of a highly copper(II) ion-selective electrochemical sensor

Convenient and mild synthesis and characterisation of some new Schiff bases

Solvent-free synthesis of some N4O2, N4S2 and N6 Schiff-base ligands assisted by microwave irradiation

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