Novel gadolinium poly(vinyl chloride) membrane sensor based on a new S–N Schiff’s base

Ganjali, Mohammad Reza; Emami, Mahdi; Rezapour, Morteza; Shamsipur, Mojtaba; Maddah, Bozorgmehr; Salavati‐Niasari, Masoud; Hosseini, Morteza; Talebpoui, Zahra

doi:10.1016/s0003-2670(03)00921-8

Cited by 98 publications

(44 citation statements)

References 16 publications

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“…[3]. Different analytical techniques such as inductively coupled plasma mass spectrometry (ICP-MS) [4][5][6][7][8], electron spin resonance (ESR) [9,10], spectrofluorometry [11,12], electrochemical sensor [13,14,2,15,16] and neutron activation analysis [17] have been performed to determine Gadolinium in various samples. Usage of spectrophotometry for determination of Gd(III) is very suitable because this method is the inexpensive and available in all laboratories.…”

Section: Introductionmentioning

confidence: 99%

Preconcentration of Gadolinium Ion by Solidification of Floating Organic Drop Microextraction and Its Determination by UV-Vis Spectrophotometry

Aghamohammadhasan¹,

Ghashamsham²,

Ghorbani³

et al. 2017

Eurasian J Anal Chem

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A solidified floating organic drop microextraction (SFODME) combined with UV-Vis spectrophotometry was applied for preconcentration and determination of Gd(III). In this study, Morin (3, 5, 7. 2', 4' pentahydroxy flavone) as a suitable ligand and 1-Dodecanol as extraction solvent were used. Following the extraction Gd-Morin complex, the extraction solvent was transported to a spectrophotometer for determination of Gadolinium ion at the absorption wave length of 440 nm. The main affecting factors in the performance of SFODME such as pH, concentration of Morin, extraction time, stirring rate and sample volume were investigated and optimized. Under the optimum conditions, the enrichment factor of 23, linear dynamic range of 80-900 µg L -1 with correlation of determination (R 2 >% 99) and limit of detection of 172µg L -1 were obtained for determination of Gd(III). The relative standard deviation (n = 5) for 150 µg L −1 of Gd(III) (sample volume 4.0mL) was ±2.17%. The method was successfully applied for preconcentration and determination of Gd(III) in water samples.

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Section: Introductionmentioning

confidence: 99%

Preconcentration of Gadolinium Ion by Solidification of Floating Organic Drop Microextraction and Its Determination by UV-Vis Spectrophotometry

Aghamohammadhasan¹,

Ghashamsham²,

Ghorbani³

et al. 2017

Eurasian J Anal Chem

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“…Considering the advantages of the ISEs, a few gadolinium-selective electrodes for determination of Gd 3 + ion based on different type of ligands such as chelates [39,40] and Schiffs bases [41,42] were previously reported. Ionophore is a most important part of plasticized PVC-membrane used in ISEs and selectivity of the sensor is defined by its selective complexation with target ion.…”

Section: Introductionmentioning

confidence: 99%

Experimental and PM6/SPARKLE Semiempirical Study of Interaction between 4‐Methoxyphenylcyanamide and Gadolinium(III) as a Fast Polymeric Membrane Sensor

2011

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In this study, a highly sensitive PVC-membrane sensor based on 4-methoxyphenylcyanamide (4-MeOpcyd) as a neutral carrier was prepared and the specific interaction between Gd 3 + ions and ionophore at the surface of selective polymeric membrane was calculated using the PM6/SPARKLE semiempirical method. The results of the Mopac2009 calculations show selective complexation of Gd 3 + by 4-MeOpcyd ligand that correlate quite well with experimental data. This membrane sensor has a linear response in the range of 1.0 10 À6 -1.0 10 À2 M Gd 3 + with detection limit of 6.2 10 À7 M. This electrode was applied in potentiometric titration for determination of gadolinium and also for fluoride ions in the mouthwash samples with satisfactory results.

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“…The resulting Schiff base complexes have attracted increasing attention in the area of ionic binding and selectivity due to their unique properties and reactivity. Recently, many works were reported about their complex formation equilibria in solution 1,2 and also about the use of Schiff base as an ion carrier in ISEs for determining metal ions such as aluminium (III), 3 chromium(III), 4 cobalt(II), 5 copper(II), [6][7][8][9][10][11][12] gadolinium (III), 13 lead(II), [14][15][16][17][18][19][20] mercury(II), 21,22 nickel(II), 23 silver(I), [24][25][26] yttrium(III). 27 Many ionophores with high selectivity for specific metal ions have been developed for the potentiometric sensors for the determination of the target metal ions.…”

Section: Introductionmentioning

confidence: 99%

Polymeric Lead(II)-selective Electrode Based on N,N'-Bis-thiophen-2-ylmethylene-pyridine-2,6-diamine as an Ion Carrier

Kim¹,

Lee²,

Choi³

et al. 2007

Bulletin of the Korean Chemical Society

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Polymeric electrodes for lead ion based on N,N'-bis-thiophen-2-ylmethylene-pyridine-2,6-diamine as an ion carrier were prepared. The membrane electrode (m-3) containing o-NPOE as a plasticizer and 50 mol% additive of ionophore gives an excellent Nernstian response (29.59 mV/decade) and the limit of detection of -log a (M) = 5.74 to Pb 2+ in Pb(NO3)2 solution at room temperature. The prepared electrode provided good sensitivity and outstanding selectivity and response for Pb 2+ over a wide variety of other metal ions in pH 7.0 buffer solutions. The good sensitivity and selectivity towards lead ion are attributed to the strong complexation of lead ion to N,N'-bis-thiophen-2-ylmethylene-pyridine-2,6-diamine which has geometrically the proper cavity to coordinate to the ligand.

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Novel gadolinium poly(vinyl chloride) membrane sensor based on a new S–N Schiff’s base

Cited by 98 publications

References 16 publications

Preconcentration of Gadolinium Ion by Solidification of Floating Organic Drop Microextraction and Its Determination by UV-Vis Spectrophotometry

Preconcentration of Gadolinium Ion by Solidification of Floating Organic Drop Microextraction and Its Determination by UV-Vis Spectrophotometry

Experimental and PM6/SPARKLE Semiempirical Study of Interaction between 4‐Methoxyphenylcyanamide and Gadolinium(III) as a Fast Polymeric Membrane Sensor

Polymeric Lead(II)-selective Electrode Based on N,N'-Bis-thiophen-2-ylmethylene-pyridine-2,6-diamine as an Ion Carrier

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