An Optode Sensor for Cu2+ with High Selectivity Based on Porphyrin Derivative Appended with Bipyridine
نویسندگان
چکیده
منابع مشابه
A highly selective fluorescent sensor for Cu2+ based on a covalently immobilized naphthalimide derivative.
In this paper, we describe the fabrication and analytical characteristics of fluorescence-based copper ion-sensing glass slides. To construct the sensor, a naphthalimide derivative N-allyl-4-(bis(pyridin-2-ylmethyl)amino)ethylamino-1,8-naphthalimide (1) with a terminal double bond was synthesized and photo-copolymerized with 2-hydroxyethyl methacrylate (HEMA) on a glass surface treated with a s...
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15 صفحه اولA Pyridine-Containing Cu2+-Selective Probe Based on Naphthalimide Derivative
A new fluorescent probe P derived from naphthalimide bearing a pyridine group has been synthesized and characterized. The proposed probe P shows high selectivity and sensitivity to Cu2+ in aqueous media. Under optimized conditions, the linear response of P (2 μM) toward Cu2+ was 0.05-0.9 μM in ethanol-water solution (3:2, v:v, 50 mM HEPES, pH 7.4), and the detection limit was 0.03 μM.
متن کاملA Cu2+-Selective Probe Based on Phenanthro-Imidazole Derivative
A novel fluorescent Probe 1, based on phenanthro-imidazole has been developed as an efficient chemosensor for the trace detection of copper ions (Cu2+). Probe 1 demonstrated sensitive fluorescence quenching upon binding with Cu2+ through 1:1 stoichiometric chelation. The detection limit for Cu2+ ions was projected through linear quenching fitting to be as low as 2.77 × 10-8 M (or 1.77 ppb). The...
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ژورنال
عنوان ژورنال: Analytical Sciences
سال: 2007
ISSN: 0910-6340,1348-2246
DOI: 10.2116/analsci.23.551