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Title: PVC membrane based potentiometric sensor for uranyl ion using thenoyl trifluoro acetone as ionophore
Authors: Nanda, D
Chouhan, P S
Maiti, B
Issue Date: Aug-2004
Publisher: NISCAIR-CSIR, India
IPC Code: Int. Cl.7 G01N 27/00
Abstract: Uranyl ion selective electrode based on thenoyl trifluoro acetone  (TTA) incorporated into a polyvinyl chloridc (PVC) membrane has been developed where dibutyl phthalate and sodium tetraphenyl borate have been used as plasticizer and anion excluder respectively. The PVC membrane containing the active ionophore, TTA, and the other ingredients has been directly cast on a graphite electrode. The electrode shows near Nernstian response to UO22+ in the concentration range of 10-1 to 10-6 mol. L-1 with an average slope of 30 mV/decade. Alkali and alkaline earth metal ions do not interfere with the determination of uranyl ion. Interference of transition metal ions anu Th (IV ) is eliminated with EDTA.
Page(s): 1685-1688
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.43A(08) [August 2004]

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