A novel flow injection potentiometric graphite coated ion-selective electrode for the low level determination of uranyl ion

Shamsipur, Mojtaba; Mizani, Farhang; Mousavi, Mir F.; Alizadeh, Naader; Alizadeh, Kamal; Eshghi, Hossein; Karami, Hassan

doi:10.1016/j.aca.2007.02.030

Cited by 47 publications

(30 citation statements)

References 65 publications

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“…Several analytical methods such as spectrophotometry, fluorimetry, etc. are used for the uranium determination but the potentiometric sensors based on ionophores-impregnated poly(vinyl chloride) membranes have the specific advantages of simplicity, selectivity, cost-effectiveness and non-destructive to measured samples [23][24][25][26][27][28][29][30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Development of potentiometric sensors for the selective determination of UO2 2+ ions

Zidan

Badr

Akl

2014

J Radioanal Nucl Chem

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The construction and performance characteristics of poly(vinyl chloride) membrane electrodes for uranyl ions based on dibutyl butyl phosphonate (L1) and di-n-octyl phenyl phosphonate (L2) as ionophores, are reported. The optimized membrane electrodes based on L1 and L2 exhibited a Nernstian response for uranyl ions over a concentration range of 5.0 9 10 -6 -1.0 9 10 -1 and 5.5 9 10 -5 -1.0 9 10 -1 mol L -1 in the pH range 2.1-3.4, with slopes of 28.6 and 29.7 mV decade -1 , respectively. The optimized electrodes exhibit good selectivity for UO 2 2? ions over a wide variety of other metal ions. The electrodes exhibit a fast dynamic response of *30 s. The developed sensors were used for potentiometric determination of uranyl ions concentration in different real samples and the obtained results agreed well with those obtained employing inductively coupled plasma optical emission spectrometer.

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Section: Introductionmentioning

confidence: 99%

Development of potentiometric sensors for the selective determination of UO2 2+ ions

Zidan

Badr

Akl

2014

J Radioanal Nucl Chem

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“…The in-built configuration rigidity induced by N-substituted amides present in periphery of benzomacrocycles invokes preorganization leading to ionophoric selectivity [6][7][8]. In past decade, we have synthesized and used several novel benzo-substituted macrocyclic diamide derivatives as suitable ionophores in the preparation of highly selective potentiometric sensors for Zn 2+ [9], Sr 2+ [10,11], Hg 2+ [12], Cs + [13], Ca 2+ [14], Ag + [15], Co 2+ [16], Be 2+ [17], UO 2 2+ [18], Cu 2+ [19].…”

Section: Introductionmentioning

confidence: 99%

“…Based on our previous experiences on the use of benzo-substituted macrocyclic diamides in the preparation of highly selective potentiometric sensors [9][10][11][12][13][14][15][16][17][18][19], in this work, we used a recently synthesized thia-containing dibenzopyridino macrocyclic diamide 1,15-diaza-3,4,12,13-dibenzo-5,11-dithia-8-oxa-1,15-(2,6-pyrido)cyclooctadecan-2,14-dione (L, Scheme 1) with an 18-member ring cavity for the preparation of novel polymeric membrane (PME), coated graphite (CGE) and coated silver wire electrodes (CWE) for highly selective and sensitive determination of Cd 2+ ion. The CGE was also used as a proper detection system in flow-injection potentiometry (FIP) of cadmium.…”

Section: Introductionmentioning

confidence: 99%

Novel PVC-membrane potentiometric sensors based on a recently synthesized sulfur-containing macrocyclic diamide for Cd2+ ion. Application to flow-injection potentiometry

Shamsipur

Dezaki

Akhond

et al. 2009

Journal of Hazardous Materials

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“…Microelectrodes are the subject of many researches in recent years and the advantages they offer over conventional electrodes are well known [33][34][35]. Metallic and graphite-based conductors of many geometric shapes have been suggested, such as wire, disc and cylinders [36,37].…”

Section: Introductionmentioning

confidence: 99%

The use of calixarene as ionophores in potentiometric ion-selective electrodes of naftidrofuryl oxalate using microsized membrane sensors for kinetic study of naftidrofuryl (NFT) degradation

El-Sayed

2013

Eur. J. Chem.

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KEYWORDSNovel miniaturized polyvinyl chloride membrane sensors in all-solid state graphite and platinum wire supports were developed, electrochemically evaluated and used for the assay of naftidrofuryl oxalate. The naftidrofuryl oxalate sensors were based on the formation of an ionassociation complex between the drug cation and tetrakis-(4-chlorophenyl)borateanionic exchanger as electroactive material and sulfocalix-8-arene as ionophore dispersed in a polyvinyl chloride matrix. Linear responses of 10 -2 -10 -6 M and 10 -2 -10 -5 M with cationic slopes of 56.9 mV and 54.1 mV over the pH range 2-5 were obtained by using the naftidrofuryl oxalate-coated graphite (Sensor 1) and platinum wire (Sensor 2) membrane sensors, respectively. The utility of 4-sulfocalix-8-arene as ionophore had a significant influence on increasing the membrane sensitivity and selectivity. The methods were also used to determine the intact drug in the presence of it's degradate in Praxilene ® tablets, plasma and cerebrospinal fluid with good recovery. Sensor 1 was used to study the kinetics of naftidrofuryl oxalate alkaline degradation that was found to follow a pseudo first-order reaction. The activation energy could be estimated from the Arrhenius plot to be 12.572 Kcal/mol. PotentiometryCerebrospinal fluid 4-Sulfocalix-8-arene Naftidrofuryl oxalate Stabilityindicating method Tetrakis-(4-chlorophenyl)borate

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A novel flow injection potentiometric graphite coated ion-selective electrode for the low level determination of uranyl ion

Cited by 47 publications

References 65 publications

Development of potentiometric sensors for the selective determination of UO2 2+ ions

Development of potentiometric sensors for the selective determination of UO2 2+ ions

Novel PVC-membrane potentiometric sensors based on a recently synthesized sulfur-containing macrocyclic diamide for Cd2+ ion. Application to flow-injection potentiometry

The use of calixarene as ionophores in potentiometric ion-selective electrodes of naftidrofuryl oxalate using microsized membrane sensors for kinetic study of naftidrofuryl (NFT) degradation

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