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Lanthanum Monitoring by N,N''-1,3-phenylenedimaleimide based on Polymeric Membrane Electrode
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نویسنده
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Chandra Sulekh ,Rawat Aruna ,Sarkar Anjana ,Jain Deepali
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منبع
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analytical and bioanalytical electrochemistry - 2009 - دوره : 1 - شماره : 2 - صفحه:98 -111
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چکیده
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A polymeric membrane based lanthanum selective electrode was developedusing n,n'-1,3-phenylenedimaleimide. the best performance was recorded with amembrane composition of pvc: dbp: ionophore: natpb as 33: 64: 2: 1 (w/w %). thenernstian slope calculated from the calibration curve for la3+ sensor was 18.1 mvdecade-1. the detection limit of the sensor was 3.16×10-9 m, in the linear concentrationrange of 1.0×10-2-1.0×10-8 m. selectivity coefficients were calculated using matchedpotential method. the interaction mechanism of the ionophore with different cationswas estimated quantitatively by complex formation constant kf values and qualitativelyby ftir spectroscopy and uv-vis. spectrophotometry. the electrode was successfullyapplied to determine the fluoride content in the mouthwash and toothpaste sample.
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کلیدواژه
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Lanthanum ,Ion selective electrodes ,Potentiometry
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آدرس
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Department of Chemistry, Zakir Husain College, University of Delhi, J.L.Nehru Marg, New Delhi-110002, India, India, School of Applied Sciences, Netaji Subhas Institute of Technology, University of Delhi, Azad Hind Fauj Marg, Sector-3, Dwarka, New Delhi-110078, India, India, School of Applied Sciences, Netaji Subhas Institute of Technology, University of Delhi, Azad Hind Fauj Marg, Sector-3, Dwarka, New Delhi-110078, India, India, School of Applied Sciences, Netaji Subhas Institute of Technology, University of Delhi, Azad Hind Fauj Marg, Sector-3, Dwarka, New Delhi-110078, India, India
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Authors
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