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dc.contributor.authorSahani M.K.-
dc.contributor.authorSinghal D.-
dc.contributor.authorSingh A.K.-
dc.contributor.authorJain A.K.-
dc.contributor.authorSingh U.P.-
dc.contributor.authorNarang S.-
dc.date.accessioned2020-10-06T14:31:13Z-
dc.date.available2020-10-06T14:31:13Z-
dc.date.issued2016-
dc.identifier.citationInternational Journal of Environmental Analytical Chemistry (2016), 96(12): 1170-1187-
dc.identifier.issn3067319-
dc.identifier.urihttps://doi.org/10.1080/03067319.2016.1244671-
dc.identifier.urihttp://repository.iitr.ac.in/handle/123456789/4065-
dc.description.abstractNovel ligand 5,5ʹ-((3-nitrophenyl)methylene)bis(2,6-diaminopyrimidin-4(3H)-one) (L) was synthesised and characterised. Preliminary studies on L have showed that it has more affinity towards the Ni2+ ion. Thus, the L was used as the electroactive material in the fabrication of poly(vinyl chloride) (PVC)-based membrane sensors such as coated graphite electrode (CGE) and coated pyrolytic graphite electrode (CPGE). Several polymeric membranes were fabricated by incorporating L as ionophore, NaTPB as anion excluders and BA, 1-CN, DBP, DOP and o-NPOE as solvent mediators and their effect on potentiometric response studied. Comparative electroanalytical studies performed on the CGE and CPGE depict that the CPGE with optimised membrane composition of L:PVC:o-NPOE:NaTPB in the ratio of 7:33:58:2 (w/w, mg) exhibited the best response in terms of wide working concentration range from 2.0 × 10− 8 to 1.0 × 10− 1 mol L−1, (3.64 µgL−1 –18.2 g L−1) lower detection limit of 8.1 × 10– 9 mol L−1 (1.47 µg L−1) with Nernstian compliance of 29.4 ± 0.2 mV decade−1 of activity of Ni2+ ion in the pH range of 3.5–9.0. The sensor can work satisfactorily in water–acetonitrile and water–methanol mixtures. It can tolerate 30% acetonitrile and 20% methanol content in the mixtures. The sensor showed fast response time of 8 s and could be used successfully for a period of 4 months. The sensor reflects its utility in the quantification of Ni2+ ion in real samples and has been successfully employed as an indicator electrode in the potentiometric titration of Ni2+ ion with EDTA. © 2016 Informa UK Limited, trading as Taylor & Francis Group.-
dc.language.isoen_US-
dc.publisherTaylor and Francis Ltd.-
dc.relation.ispartofInternational Journal of Environmental Analytical Chemistry-
dc.subjectCoated pyrolytic graphite electrode-
dc.subjectC–C coupling-
dc.subjectNi2+ ion-selective electrode-
dc.subjectPotentiometry-
dc.subjectSingle-crystal X-ray diffraction-
dc.titlePotentiometric sensor for the nanoscale monitoring of Ni2+ ion in environmental samples by the fabrication of coated pyrolytic graphite electrode based on a novel C–C-coupled compound-
dc.typeArticle-
dc.scopusid56037950500-
dc.scopusid7003355678-
dc.scopusid57209223382-
dc.scopusid7404463053-
dc.scopusid57203181883-
dc.scopusid56168890200-
dc.affiliationSahani, M.K., Department of Chemistry, Indian Institute of Technology-Roorkee, Roorkee, India-
dc.affiliationSinghal, D., Department of Chemistry, Indian Institute of Technology-Roorkee, Roorkee, India-
dc.affiliationSingh, A.K., Department of Chemistry, Indian Institute of Technology-Roorkee, Roorkee, India-
dc.affiliationJain, A.K., Department of Chemistry, Indian Institute of Technology-Roorkee, Roorkee, India-
dc.affiliationSingh, U.P., Department of Chemistry, Indian Institute of Technology-Roorkee, Roorkee, India-
dc.affiliationNarang, S., Department of Chemistry, Indian Institute of Technology-Roorkee, Roorkee, India-
dc.description.fundingThis work was supported by the Ministry of Human Resource Development.-
dc.description.correspondingauthorSingh, A.K.; Department of Chemistry, Indian Institute of Technology-RoorkeeIndia; email: akscyfcy@iitr.ernet.in-
Appears in Collections:Journal Publications [CY]

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