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Shamsipur, Mojtaba; Khayatian, Gholamreza; Kazemi, Sayed Yahya; Niknam, Khodabakhsh; Sharghi, Hashem

doi:10.1023/a:1012737214492

Cited by 31 publications

(17 citation statements)

References 22 publications

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“…Membrane optimization PVC:ionophore:plasticizer:ionic additive ratios and plasticizer types are important parameters that affect the potentiometric performance properties of an ion selective electrode [47,48]. Therefore, different membrane compositions were prepared by manipulating these parameters to determine the electrode composition introducing the best potentiometric potentiometric performance characteristics (slope, detection limit, linear working range, and coefficient of determination (R 2 )).…”

Section: Resultsmentioning

confidence: 99%

Construction of a novel highly selective potentiometric perchlorate sensor based on neocuproine–Cu(II) complex formed in situ during the conditioning period

Önder¹,

Topçu²,

Çoldur³

2018

chemija

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A potentiometric perchlorate-selective electrode based on a phenanthroline derivative, neocuproine (2,9-dimethyl-1,10-phenanthroline), was developed. An electroactive substance, a neocuproine complex of Cu 2+ , providing a selective response to perchlorate was formed in situ in the electrode membrane structure during the conditioning process. Membrane optimization studies showed that the most suitable membrane composition was 1.0% (w/w) neocuproine, 69.0% (w/w) o-nitrophenyloctylether (o-NPOE) and 30.0% (w/w) poly(vinyl chloride) (PVC) in terms of potentiometric performance characteristics. For the proposed electrode, the linear range, slope, detection limit, pH working range and response time were determined as 2.5 × 10 -7 -1.0 × 10 -1 M, -53.01 mV/decade, 1.0 × 10 -7 M, 4.0-12.5 and ≈3 s, respectively. The proposed sensor was successfully used in the determination of perchlorate contents of some perchlorate spiked tap, river and dam water samples.

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Section: Resultsmentioning

confidence: 99%

Construction of a novel highly selective potentiometric perchlorate sensor based on neocuproine–Cu(II) complex formed in situ during the conditioning period

Önder¹,

Topçu²,

Çoldur³

2018

chemija

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show abstract

“…It is well known that the sensitivity, linearity and selectivity, obtained for a given ionophore, depends significantly on the membrane composition, nature and the amount of additive used. 2,[27][28][29][30][31] The percentage of membrane solvent in poly (vinyl chloride) membranes and the membrane solutions for micro-electrodes is very high (60-90 wt.%). Hence, the membrane solvent has to exhibit excellent plasticizer properties for use in solvent polymeric membranes.…”

Section: Resultsmentioning

confidence: 99%

A New Selective Membrane Electrode for Oxalate Based on N,N'-Bis(salicylidene)-2,2-dimethylpropane-1,3-diamine Ni(II)

Ardakani

Iranpoor²,

Karimi³

et al. 2008

Bulletin of the Korean Chemical Society

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A new solvent polymeric membrane electrode, based on N,N'-bis(salicylidene)-2,2-dimethylpropane-1,3-diamine Ni(II) as the ionophore, was designed. The oxalate-selective electrode has the dynamic range between 1.0 × 10 −6 M and 1.0 × 10 −1 M with a Nernstian slope of −28.7 ± 1.0 mV per decade. The detection limit was 6.3 × 10 −7 M. The proposed electrode revealed good selectivities for oxalate over a variety of other anions and could be used in a pH range of 2.0-7.8. The electrode can be used for at least two months without any considerable divergence in potential. The designed electrode was applied as an indicator electrode in the potentiometric determination of oxalate in real samples.

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“…16,21,22,[26][27][28] Thus, the influence of the amount of ionophore, and amount and nature of the plasticizers and lipophilic anionic additives on the potential response of the I 3 − sensor was investigated, and the results are summarized in Table 1. As it is seen, in most cases, the electrodes show a super-Nernstian response to triiodide ion, a behavior which has already been reported for ionophore-based selective electrodes for such lipophilic anions as I 3 −20 and SCN -ions.…”

Section: Resultsmentioning

confidence: 99%

Highly Selective Triiodide Polymeric Membrane Electrode Based on Tetra(p-chlorophenyl)porphyrinato Manganese (Ⅲ) Acetate

2002

Bulletin of the Korean Chemical Society

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A new solvent polymeric membrane sensor based on tetra(p-chlorophenyl)porphyrinato manganese (III) acetate is described which demonstrates excellent selectivity toward the triiodide ion. The electrode has a linear dynamic range between 1.0 × 10 −2 M and 7.0 × 10 −6 M with a Nernstian slope of -59.6 ± 1 mV per decade and a detection limit of 5.0 × 10 −6 M. The proposed sensor revealed good selectivities for triiodide over a wide variety of other anions and could be used in a pH range 2-9. The electrode can be used for at least two months without any considerable divergence in potential. It was applied as indicator electrode in potentiometric titration of the triiodide and As(III) ions.

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Untitled

Cited by 31 publications

References 22 publications

Construction of a novel highly selective potentiometric perchlorate sensor based on neocuproine–Cu(II) complex formed in situ during the conditioning period

Construction of a novel highly selective potentiometric perchlorate sensor based on neocuproine–Cu(II) complex formed in situ during the conditioning period

A New Selective Membrane Electrode for Oxalate Based on N,N'-Bis(salicylidene)-2,2-dimethylpropane-1,3-diamine Ni(II)

Highly Selective Triiodide Polymeric Membrane Electrode Based on Tetra(p-chlorophenyl)porphyrinato Manganese (Ⅲ) Acetate

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