Novel Dy(III) Sensor Based on a New Bis‐Pyrrolidene Schiff's Base

Ganjali, Mohammad Reza; Ravanshad, Jaafar; Hosseini, Morteza; Salavati‐Niasari, Masoud; Pourjavid, Mohammad Reza; Baezzat, Mohammad Reza

doi:10.1002/elan.200303024

Cited by 80 publications

(33 citation statements)

References 23 publications

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“…Regarding that some neutral ion carriers containing nitrogen and sulfur donor atoms have been reported to be used in construction of highly selective transition and heavy metal ion membrane sensors, such as, La(III), [9][10][11][12][13][14] Ce(III), [15][16][17] Nd(III), 18 Eu(III), 19 Sm(III), 20,21 Gd(III), 22 Tb(III), 23 Dy(III), 24 and considering the existence of both nitrogen and sulfur donor atoms in the structure of PCMHT, it was expected to act as a suitable ion carrier for special transition and heavy metal ions (specially, higher charge density) in the PVC membranes.…”

Section: Resultsmentioning

confidence: 99%

“…The recent introduction of a number of lanthanide selective membrane sensors for La(III), [9][10][11][12][13][14] Ce(III), [15][16][17] Nd(III), 18 Eu(III), 19 Sm(III), 20,21 Gd(III), 22 Tb(III), 23 Dy(III), 24 and Yb(III), 25 ions based on different noncyclic and macrocyclic ionophores, by our own and other groups, inspired us to try the construction of an Er(III)-selective electrode based on a PCMHT as an ion carrier. The resulting electrode shows to be suitable for the determination of Er(III) concentration in the range of…”

Section: Introductionmentioning

confidence: 99%

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Application of pyridine-2-carbaldehyde-2-(4-methyl-1,3-benzo thiazol-2-yl)hydrazone as a neutral ionophore in the construction of a novel Er(III) sensor

Ganjali¹,

Rezapour²,

Rasoolipour³

et al. 2007

J. Braz. Chem. Soc.

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A piridina-2-carbaldeído-2-(4-metil-1,3-benzotiazol-2-il) hidrazona (PCMHT) pode ser usada como um ionóforo neutro apropriado à preparação de uma membrana sensora a Er(III), com alta seletividade. A composição ótima encontrada foi PCMHT-PVC-KTpClPB-BA com as razões de 6,0:30,0:5,0:59,0 . A excelente seletividade a Er(III) do sensor proposto, frente aos íons metálicos mais comuns e, especialmente íons lantanídeos, é uma outra vantagem. O sensor foi usado com sucesso como eletrodo indicador na titulação de 25 mL de 1,0 × 10 -4 mol L -1 de íons Er(III) com 1,0 × 10 -2 mol L -1 de EDTA. O sensor proposto foi usado na monitoração direta de Er(III) em misturas binárias e na determinação indireta de íons fluoreto em duas preparações de enxágüe bucal.We found that pyridine-2-carbaldehyde-2-(4-methyl-1,3-benzothiazol-2-yl) hydrazone (PCMHT) can be used as a suitable neutral ionophore for preparing an Er(III) membrane sensor with high selectivity. The optimum composition was found to be PCMHT-PVC-KTpClPB-BA with the ratios of 6.0:30.0:5.0:59.0, respectively. The Nernstian response was of 21.8 ± 0.5 mV decade -1 of Er(III) activity, the linear range of the sensor was found to be relatively wide (from 1.0×10 -5 to 1.0 ×10 -2 mol L -1). Its applicability pH range of 2.5-12.0 seems to make it suitable for analytical applications. EDTA. The proposed sensor was used for direct monitoring of Er(III) in binary mixtures and indirect determination of fluoride ions in two mouth wash preparations.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of pyridine-2-carbaldehyde-2-(4-methyl-1,3-benzo thiazol-2-yl)hydrazone as a neutral ionophore in the construction of a novel Er(III) sensor

Ganjali¹,

Rezapour²,

Rasoolipour³

et al. 2007

J. Braz. Chem. Soc.

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“…Color 8,11 .1 13,16 .1 23,26 ] tetratriaconta-1(30), 2,6,8,10,13,15,17, 21,23,25,28- 12,12,27,27-tetramethyl-31,32,33,34-tetrathia-3,6,18,21-tetraazapentacyclo [26.2.1.1 8,11 .1 13,16 .1 23,26 ] tetratriaconta-1 (30), 2,6,8,10,13,15,17,21,23,25,28-…”

Section: Synthesis Of Bis(5-formyl-2-thienyl)methane S Amentioning

confidence: 99%

“…These methods either are time-consuming, involve multiple sample manipulations, or are too expensive for most analytical laboratories; ion-selective electrodes (ISE) provide analytical procedures for such situations as they are fast, convenient, having minimum sample pre-treatment requirement and may also be suitable for online analysis. In view of such advantages, a number of lanthanide ion selective sensors based on poly(vinyl) chloride have been developed such as La 3+ [9,10], Yb 3+ [11], Gd 3+ [12], Sm 3+ [13], Er 3+ [14], Tb 3+ [15] and also on Dy 3+ [2,16,[17][18][19]. Although lot of work has been done on Dy 3+ selective membrane electrodes with good selective ranges, no one did comparative evaluation of Dy 3+ selective membrane electrodes; therefore authors have been synthesized three different derivatives of macrocyclic tetraimine Schiff's base for comparative evaluation of Dy 3+ selective membrane electrodes and improved the detection limit compared to reported work.…”

Section: Introductionmentioning

confidence: 99%

Comparative evaluation of Dy(III) selective poly(vinyl) chloride based membrane electrodes of macrocyclic tetraimine Schiff's bases

Gupta

Pal

Singh

2009

Talanta

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a b s t r a c tThree different derivatives of macrocyclic tetraimine Schiff's base have been synthesized and explored as a neutral ionophores for preparing poly(vinyl chloride) based membrane sensors selective to Dy 3+ . The addition of sodium tetraphenyl borate and various plasticizers, viz., o-NPOE, DBP, DBBP, DOP and CN has been found to substantially improve the performance of the sensors. The best performance was obtained with the sensor no. 1 having membrane of Schiff's base (SL-1) with composition (w/w) SL-1 (4.5%): PVC (30.5%): o-NPOE (59.5%): NaTPB (5.5%). This sensor exhibits Nernstian response with slope 19.4 mV/decade of activity in the concentration range of 10 −8 to 1.0 × 10 −2 M Dy 3+ , performs satisfactorily over wide pH range of (2.8-7.2) with a fast response time (10 s). The sensor was also found to work satisfactorily in partially non-aqueous media up to 20% (v/v) content of acetonitrile, methanol or ethanol. The proposed sensor can be used over a period of 1.5 months without significant drift in potentials. The sensor has been also utilized for the determination of Dy 3+ level in different soil samples.

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“…[8][9][10][11][12][13] Chen and coworkers 8,10 reported polymeric membranes based on nitrogen containing calixarene derivatives; Mahajan et al 9 12,13 In the recent decade, we have also introduced a number of selective membrane sensors for transition and heavy metal ion. [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] In this work, we wish to report the construction of a highly selective and sensitive Ag + membrane sensor based on 2-methyl-2,4-di(2-thienyl)-2,3-dihydro-1H-1,5-benzodiazepine (MTHB) for the monitoring of Ag + ion concentration. …”

mentioning

confidence: 99%

Ion recognition: synthesis of 2-methyl-2,4-di (2-thienyl)-2,3-dihydro-1H-1,5-benzodiazepine and its application in construction of a highly selective and sensitive Ag+ membrane sensors

Ganjali¹,

Norouzi²,

Alizadeh³

et al. 2006

J. Braz. Chem. Soc.

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Uma membrana carregadora plastificada foi preparada a partir de 2-metil-2,4-di(2-tienil)-2,3-diidro-1H-1,5-benzodiazepina (MTHB). Esta membrana é altamente sensível e seletiva a íons Ag + . O sensor mostra um intervalo dinâmico linear de 1,0 × 10 -6 -1,0 × 10 -1 mol L -1 , com inclinação Nernstiniana de (58,5±0,3) mV per década, e limite de detecção 5,0 × 10 -7 mol L -1 (~54 ppb). Apresenta rápido tempo de resposta, 10s, e pode ser usado por 8 semanas no mínimo, sem alterações consideráveis no seu potencial. O sensor proposto pode ser usado no intervalo de pH entre 4,0 e 8,0 e foi utilizado com sucesso, como eletrodo indicador, na titulação potenciométrica de Ag + com NaCl.A highly selective and sensitive plasticized membrane sensor for Ag + ions based on 2-methyl-2,4-di(2-thienyl)-2,3-dihydro-1H-1,5-benzodiazepine (MTHB) as membrane carrier was prepared. The sensor shows a linear dynamic range of 1.0 × 10 -6 -1.0 × 10 -1 mol L -1 , with a Nernstian slope of (58.5±0.3) mV decade -1 , and a detection limit of 5.0 × 10 -7 mol L -1 (~54 ppb). It has a fast response time of 10 s and can be used for at least eight weeks without any considerable divergences in its potentials. The proposed sensor revealed very good selectivities with respect to the most of common metal ions. The proposed sensor could be used in a pH range of 4.0-8.0. It was successfully used as an indicator electrode in potentiometric titration of Ag + with NaCl.Keywords: potentiometric sensor, Ag + sensor, PVC membrane, 2-methyl-2,4-di(2-thienyl)-2,3-dihydro-1H-1,5-benzodiazepine (MTHB) IntroductionSilver plays no known natural biological role in humans, and possible health effects of silver are subject of dispute. Silver itself is not toxic but most of its salts are, and some may be carcinogenic. The toxicity of silver is characterized by a severe pulmonary edema, hemorrhage and necrosis of bone marrow, liver, and kidney. Long-term human exposure to silver salts or colloidal silver may cause argyria. Repeated exposure of animals to silver may produce anemia, cardiac enlargement, growth retardation and degenerative changes in the liver. Silver compounds were used successfully to prevent infection in World War I before the advent of antibiotics, and Silver compounds are still widely used externally today to accelerate healing in burn victims. Very low concentrations of silver are present in various complex samples like drinking water (5 μg L -1 , soil, rock, coal fly ash, air, cigarettes, alloys, plants, sea water etcetera). 1,2 Some techniques such as atomic absorption spectroscopy, 3 inductively coupled plasma, 4 spectroscopy with complexation agents 5 and Rayleigh light-scattering 6 have been used to determine amount of silver.Because of the increasing use of silver compounds in industry and medicine the quick determination of trace quantities of Ag + ion by simple methods is important in chemical, clinical and environmental analysis.Potentiometer monitoring based on ion-selective membrane sensor, as a simple method, offers several advantages such a...

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Novel Dy(III) Sensor Based on a New Bis‐Pyrrolidene Schiff's Base

Cited by 80 publications

References 23 publications

Application of pyridine-2-carbaldehyde-2-(4-methyl-1,3-benzo thiazol-2-yl)hydrazone as a neutral ionophore in the construction of a novel Er(III) sensor

Application of pyridine-2-carbaldehyde-2-(4-methyl-1,3-benzo thiazol-2-yl)hydrazone as a neutral ionophore in the construction of a novel Er(III) sensor

Comparative evaluation of Dy(III) selective poly(vinyl) chloride based membrane electrodes of macrocyclic tetraimine Schiff's bases

Ion recognition: synthesis of 2-methyl-2,4-di (2-thienyl)-2,3-dihydro-1H-1,5-benzodiazepine and its application in construction of a highly selective and sensitive Ag+ membrane sensors

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