کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
869712 909837 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Amphiphilic porphyrin film on glass as a simple and selective solid-state chemosensor for aqueous Hg2+
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Amphiphilic porphyrin film on glass as a simple and selective solid-state chemosensor for aqueous Hg2+
چکیده انگلیسی

Deposition of amphiphilic porphyrin derivatives occurs spontaneously on silanised glass surfaces, in a controlled fashion. The resulting porphyrin films show appreciable fluorescence emission. This emission can be effectively quenched by immersion of the slides into a diluted solution of Hg2+ (μM concentration). The initial intensity can be restored by washings with a solution of N,N,N′,N′-tetrakis(2-pyridilmethyl)ethylenediammine with no loss of efficiency. A remarkable selectivity is featured toward the detection of Hg2+ over Cu2+, Cd2+, Pb2+ and Zn2+ counterparts. This protocol can be extended to a flow-through apparatus. The presented results are of importance for the achievement of a solid-state chemosensor for mercuric ions, at micromolar concentration, in water.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biosensors and Bioelectronics - Volume 22, Issue 3, 15 September 2006, Pages 399–404
نویسندگان
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