Zn(II)-selective poly (vinyl chloride) (PVC) membrane electrode based on Schiff base ligand 2-benzoylpyridine semicarbazone as an ionophore
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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.
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2009 ◽
Vol 74
(9)
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pp. 1411-1424
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2004 ◽
Vol 380
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2006 ◽
Vol 113
(1)
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pp. 290-296
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2020 ◽
Vol 40
(6)
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pp. 481-485
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2006 ◽
Vol 113
(2)
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pp. 930-936
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2016 ◽
Vol 20
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pp. S293-S299
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