کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1256964 971539 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel fluorescent epoxy resin for organophosphate pesticide detection
ترجمه فارسی عنوان
یک رزین اپوکسی فلورسنت جدید برای تشخیص سموم ارگانوفسفره
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
چکیده انگلیسی

In this work, a novel bisbenzimidazolylpyridine-functionalized fluorescent epoxy resin was synthesized for organophosphate pesticide detection. The epoxy resin was characterized by Fourier-transform infrared spectroscopy (FT-IR), proton nuclear magnetic resonance spectroscopy (1H NMR), gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and fluorescence spectroscopy. After loading with Eu(III) ions, the epoxy resin showed a strong fluorescence emission. The fluorescence emission was observed to be instantaneously quenched when exposed to trace amount of diethyl chlorophosphate in solution. The Stern–Volmer quenching constants Ksv for quenching at 617 nm was determined to be 0.377 × 103 L/mol. This sensitive emission-quenching function and easy processing nature of the polymeric support enable the resin to be a promising chemosensor candidate for the detection of organophosphates.

A novel bisbenzimidazolylpyridine-functionalized fluorescent epoxy resin was synthesized for organophosphate pesticide detection.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Chemical Letters - Volume 26, Issue 1, January 2015, Pages 39–42
نویسندگان
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