Iodide-selective membrane electrode based on salophen complex of cobalt (III)

Zare, Hamid R.; Memarzadeh, Farkhondeh; Gorji, Alireza; Ardakani, Mohammad Mazloum

doi:10.1590/s0103-50532005000400013

Cited by 28 publications

(19 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…6 A strong interaction of the anions and the ionophore as well as the steric effect associated with the structure of the ligand gives rise to anti-Hofmeister selectivity sequence. [7][8][9] Thus the research on anti-Hofmeister sensing materials for anion as well as developments including new synthetic ionophores, new reference electrodes, miniaturization of the detecting device etc. makes it an ever-expanding culture for research in chemical sensors.…”

Section: Introductionmentioning

confidence: 99%

Highly Selective Potentiometric Oxalate Ion Sensors Based on Ni(II) Bis‐(m‐aminoacetophenone)ethylenediamine

Rawat

Chandra²,

Sarkar

2010

Chin. J. Chem.

View full text Add to dashboard Cite

A plasticized PVC (polyvinyl chloride) membrane based oxalate ion selective electrode has been developed by using the condensation product of m-aminoacetophenone and ethylenediamine. The transition metal complexes of the ligand N,N '-bis(m-aminoacetophenene)ethylenediamine (L) were synthesized and incorporated as ionophore for the synthesis of oxalate ion selective electrodes. Most appropriate result in terms of dynamic range, detection limit and response behavior was determined for the Ni(II) bis-(m-aminoacetophenone)ethylenediamine complex. The electrode demonstrated higher selectivity for oxalate ion with improved performance as compared to other carriers reported in past. The electrode shows Nernstian slope of (-28.5±0.4) mV•decade -1 with improved linear range of, with a comparatively lower detection limit in the pH range of 5-10.5, giving a relatively fast response within 10 s and reasonable reproducibility. The selectivity coefficient was calculated using matched potential method and fixed interference method. The lifetime of the electrode was found to be nearly 2 months. The response mechanism and the interaction of oxalate ion with the complexes have been discussed by UV-visible spectroscopic technique. Further the electrode was also successfully applied to determine the oxalate content in water samples.

show abstract

Section: Introductionmentioning

confidence: 99%

Highly Selective Potentiometric Oxalate Ion Sensors Based on Ni(II) Bis‐(m‐aminoacetophenone)ethylenediamine

Rawat

Chandra²,

Sarkar

2010

Chin. J. Chem.

View full text Add to dashboard Cite

show abstract

“…Son yıllarda literatürde belirtilen iyodür-seçici elektrotların hazırlanmasında metal kompleksleri iyonofor olarak kullanılmaktadır [27][28][29]. Ancak, elektrotların pek çoğu yukarıda bazı dezavantajları belirtilen PVC membran elektrotlardır.…”

Section: Introductionunclassified

Paladyum Komplekslerine Dayalı İyodür-Seçici Karbon Pasta Elektrot Hazırlanması

Özel¹,

Muratoğlu²,

Ertürün³

2017

SDÜ Fen Bil Enst Der

View full text Add to dashboard Cite

Anahtar KelimelerKarbon pasta elektrot, İyodür-seçici elektrot, Potansiyometri, Paladyum kompleksleri Özet: Dibromo[1,1′-bis(difenilfosfin)ferrosen] paladyum(II) (iyonofor I) ve dikloro[1,1′-bis(difenilfosfin)ferrosen] paladyum(II) (iyonofor II) olarak adlandırılan paladyum komplekslerinin kullanıldığı yeni iyodür-seçici karbon pasta elektrotlar hazırlandı. İyonofor I ve II kullanılarak optimum karbon pasta bileşimiyle hazırlanan elektrotların pH 4,0'da sırasıyla −43,2 ± 0,6 mV/pI ve −43,8 ± 0,6 mV/pI eğimle, 3,5×10 −6 M ve 3,7×10 −7 M gözlenebilme sınırıyla, 1,0×10 −5 − 1,0×10 −1 M ve 1,0×10 −6 − 1,0×10 −1 M derişim aralığında doğrusal cevap verdikleri gözlendi. Önerilen elektrotların kısa cevap sürelerine, 3 aylık ömre, iyi bir tekrarlanabilirlik ve üretilebilirliğe sahip oldukları bulundu. Ayrıca, elektrotlar, iyodür içeren ilaç numunelerinde iyodürün potansiyometrik tayini için indikatör elektrot olarak başarılı bir şekilde kullanıldı. Preparation of Iodide-Selective Carbon Paste Electrode Based on Palladium ComplexesKeywords Carbon paste electrode, Iodide-selective electrode, Potentiometry, Palladium complexes Abstract: New carbon paste iodide-selective electrodes based on palladium complexes named as dibromo[1,1′-bis(diphenylphosphino)ferrocene] palladium(II) (ionophore I) and dichloro[1,1′-bis(diphenylphosphino)ferrocene] palladium(II) (ionophore II) were developed. The electrodes, prepared with optimum carbon paste composition by using ionophore I and II exhibited linear response with slopes of −43.2 ± 0.6 and −43.8 ± 0.6 mV/pI, detection limits of 3.5×10 −6 M and 2.9×10 −6 M at pH 4.0 over the concentration range of 1.0×10 −5 − 1.0×10 −1 M and 1.0×10 −6 − 1.0 × 10 −1 M, respectively. The proposed electrodes were found to have short response times, lifetime of three months, good reproducibility and repeatability. Moreover, the electrodes were successfully used as an indicator electrode for the potentiometric determination of iodide in an iodide containing drug sample.

show abstract

“…Bu yöntemlerin pahalı cihaz gerektirmeleri, analiz sürelerinin uzun olması, deneyimli elemanlara gerek duyulması gibi çeşitli dezavantajları vardır. Bu dezavantajların üstesinden gelebilmek için iyon-seçici elektrotlara dayanan potansiyometrik yöntemler alternatif olarak görülebilir [9][10][11][12].…”

Section: Introductionunclassified

İyonofor Olarak Bir Kaliks[4]aren Türevinin Kullanıldığı İyodür-Seçici PVC Membran Elektrot

Yazicigil

Ertürün

Özel

et al. 2016

SDÜ Fen Bil Enst Der

View full text Add to dashboard Cite

Özet: Bu çalışmada, iyonofor olarak 5, 11,17,23-tetra(tert-bütil)-25,26,27,28-tetra(4-propilimidazol asetamit)-kaliks[4]aren bileşiğinin kullanıldığı iyodür-seçici yeni bir polivinil klorür (PVC) membran elektrot hazırlandı. İyodür -seçici membranın hazırlanmasında kullanılan PVC, o-nitrofeniloktileter (o-NPOE; plastikleştirici) ve iyonoforun oranı değiştirilerek, optimum membran bileşimi %2 iyonofor, %29,7 PVC, %68,3 o-NPOE olarak bulundu. pH 4,0'de elektrodun doğrusal çalışma aralığının ve eğiminin sırasıyla 1,0×10 -5 -1,0×10 -2 M ve 52,1± 2,6 mV/pI olduğu belirlendi. Önerilen elektrodun oldukça kısa bir cevap süresine (5-10 s) ve 5 ay'dan daha uzun bir ömre sahip olduğu gözlendi. Elektrot diğer anyonlar varlığında Abstract:In this study, a new iodide-selective polyvinyl chloride (PVC) membrane electrode using 5,11,17,23-tetra(tert-butyl)-25,26,27,28-tetra(4-propylimidazole acetamide)-calix[4]arene compound as an ionophore was prepared. Optimum membrane composition was found as 2% ionophore, 29.7% PVC and 68.3% onitrophenyl octyl ether (o-NPOE; plasticizer) by changing the ratio of ionophore, o-NPOE and PVC used in the preparation of membrane. The linear working range and the slope of the electrode at pH 4.0 were determined as 1.0×10 -5 -1.0×10 -2 M and 52.1± 2.6 mV/pI, respectively. It was observed that the proposed electrode had a short response time (5-10 s) and a lifetime of > 5 months. The electrode exhibited selectivity towards different anions in the order of I ->Salicylate> ClO4 -> NO3 -> SCN -≈ Benzoate > NO2 -> Br -> Cl -> F -> Citrate > HCOO -. Moreover, the proposed electrode was successfully used as an indicator electrode in the precipitation titration of iodide with silver nitrate.

show abstract

Iodide-selective membrane electrode based on salophen complex of cobalt (III)

Cited by 28 publications

References 40 publications

Highly Selective Potentiometric Oxalate Ion Sensors Based on Ni(II) Bis‐(m‐aminoacetophenone)ethylenediamine

Highly Selective Potentiometric Oxalate Ion Sensors Based on Ni(II) Bis‐(m‐aminoacetophenone)ethylenediamine

Paladyum Komplekslerine Dayalı İyodür-Seçici Karbon Pasta Elektrot Hazırlanması

İyonofor Olarak Bir Kaliks[4]aren Türevinin Kullanıldığı İyodür-Seçici PVC Membran Elektrot

Contact Info

Product

Resources

About