Zn(II)-selective poly (vinyl chloride) (PVC) membrane electrode based on Schiff base ligand 2-benzoylpyridine semicarbazone as an ionophore

2020 ◽  
Vol 40 (10) ◽  
pp. 842-847
Author(s):  
Shankar Suman ◽  
Ram Singh

AbstractA new poly (vinyl chloride) (PVC) membrane electrode using 2-benzoylpyridine semicarbazone as membrane carrier with dioctylphthalate as plasticizer and sodium tetraphenylborate (NaTBP) as anion excluder has been fabricated and investigated as Zn(II)-selective electrode. Best potential response is observed for the composition PVC 30%, plasticizer 58%, NaTBP 8% and ionophore 4% (w/w). The sensor showed a linear stable response over a concentration range of 1.0 × 10−2–4.56 × 10−6 M with a detection limit of 2.28 × 10−6 M and a response time <10 s. The electrode can be used for at least six months without any divergence in potential.

2012 ◽  
Vol 549 ◽  
pp. 221-224
Author(s):  
Gang Xu ◽  
Wen Li Dong ◽  
Ling Yan Ren

A new highly selective poly vinyl chloride(PVC) membrane iodide electrode which has neutral carrier of cobalt(Ⅱ) complex with symmetrical binuclear schiff base has been studied. Based on the fact we knew that ethylenediamine could react to acetylacetone and salicylaldehyde. The electrode exhibited near -Nernst response to iodide with a slope of ―54.4 mV/dec over a wide concentration range (1.58×10-7~1.0×10-1 mol/L) with a detection limit of 6.3×10-8 mol/L in phosphorate bufer solution with pH=2.4 at 26°C. After applied to the determination of iodide in pharmaceuticals and salts, the electrode could get satisfied results


2009 ◽  
Vol 74 (9) ◽  
pp. 1411-1424 ◽  
Author(s):  
Mohammad Bagher Gholivand ◽  
Maryam Gorji ◽  
Mohammad Joshaghani

A new PVC membrane electrode highly selective to Mn(II), based on 2,2′-bis(salicylideneamino)azobenzene as an ionophore. The electrode exhibits a Nernstian response to Mn(II) ions over a concentration range 0.8 × 10–1–1.1 × 10–7 mol l–1 with a slope of 30.5 ± 0.5 mV per decade and detection limit 5.5 × 10–8 mol l–1. The electrode was used for 45 days at the minimum without any measurable potential divergence. Also, the electrode revealed a fairly good discrimination ability between Mn(II) ions and some cations and anions. The electrode was also utilized as indicator electrode in the potentiometric titration of Mn(II) with EDTA and in determination of Mn(II) in drug as well as tape and river water.


2006 ◽  
Vol 113 (1) ◽  
pp. 290-296 ◽  
Author(s):  
Sevcan Erden ◽  
Ayça Demirel ◽  
Sahahabuddin Memon ◽  
Mustafa Yılmaz ◽  
Esin Canel ◽  
...  

2020 ◽  
Vol 40 (6) ◽  
pp. 481-485 ◽  
Author(s):  
Shankar Suman ◽  
Ram Singh

AbstractA synthesized Schiff base 2-acetylthiophene semicarbazone (3) was used for the preparation of Ni2+ selective polyvinyl chloride (PVC) membrane electrode. The prepared electrode with the optimized composition, PVC:3:sodium tetraphenylborate:di-n-butylphthalate as 33:6:3:58 exhibited a Nernstian response over the working range of 5.0 × 10−6–5.0 × 10−2 mol l−1 with a slope of 29.0 ± 0.3 mV/concentration. The electrode showed good selectivity towards Ni2+ with respect to several metal ions in the pH range of 2.5–10.0 in <15 s with a detection limit of 4.7 × 10−6 mol l−1. The electrode showed the additional benefit of working in partially nonaqueous media having up to 15% (v/v) methanol or ethanol. This electrode was also successfully applied in Ni2+ ion potentiometric titration with ethylenediaminetetraacetic acid as an indicator electrode.


Talanta ◽  
2007 ◽  
Vol 72 (3) ◽  
pp. 1088-1092 ◽  
Author(s):  
Mohammad Hossein Mashhadizadeh ◽  
Ehsan Pour Taheri ◽  
Iran Sheikhshoaie

2002 ◽  
Vol 51 (9) ◽  
pp. 779-784 ◽  
Author(s):  
Masato UEDA ◽  
Akiyo KOMAI ◽  
Keiichi FUJIMORI ◽  
Takayo MORIUCHI-KAWAKAMI ◽  
Yasuhiko SHIBUTANI

2006 ◽  
Vol 113 (2) ◽  
pp. 930-936 ◽  
Author(s):  
Mohammad Hossein Mashhadizadeh ◽  
Ali Mostafavi ◽  
Hossein Allah-Abadi ◽  
Iran Sheikhshoai

2016 ◽  
Vol 20 ◽  
pp. S293-S299 ◽  
Author(s):  
Sulekh Chandra ◽  
Praveen Kumar Tomar ◽  
Avdhesh Kumar ◽  
Amrita Malik ◽  
Arendra Singh

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