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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 27, Number 6
BKCSDE 27(6)
June 20, 2006

Title	SalphenH₂ as a Neutral Carrier for the Uranyl Ion-Selective PVC Membrane Sensor
Author	Dong Wan Kim, Kyeong-Won Park, Mi-Hyi Yang, Jineun Kim, Shim Sung Lee, Jae Sang Kim*
Keywords	Uranyl ion sensor, Potentiometry, PVC membrane, SalphenH₂ ionophore
Abstract	The complexation of N,N'-4,5-(ethylenedioxy)benzenebis(salicylideneimine), (salphenH2) with uranyl ion was studied in acetonitrile solution spectrophtometrically, and the formation constant of the resulting 1 : 1 complex was evaluated. The salphenH₂ ligand was used as an ionophore in plasticized poly(vinyl chloride) (PVC) matrix membrane sensor for uranyl ion. The prepared sensors exhibited a near Nernstian response, 28.0-30.9 mV/decade for uranyl ion over the concentration range 1.0 × 10^-2 to 1.0 × 10^-6 M with a limit of detection of 3.2 × 10^-7 M. The proposed electrode could be used at a working pH range of 1.5-4.0.
Page	899 - 0
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