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Abstract. Highly sensitive colorimetric chemosensor molecule RHN for selective detection of Cu2+ in
mixed CH3CN aqueous media was designed and prepared by incorporating the well-known rhodamine
fluorophore and a terdentate O2N binding unit into one molecule. The chemosensor RHN showed not
only a reversible, selective, and sensitive absorbance enhancement response to Cu2+, but also a strong
colour development against the colourless blank during the sensing event, a feature that would facilitate
¡®naked-eye¡¯ detection.
Keywords. Chemosensor; Cu2+; colorimetric; rhodamine B spirolatam.

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sltmac: ½ð±Ò+1 2012-04-20 09:35:19
תÍäΪÄãÏàÓö: ½ð±Ò+7, ·­ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2012-04-20 23:26:41
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