کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5270271 1385412 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cyanide ion colorimetric chemosensor based on protonated merocyanine in EtOH
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Cyanide ion colorimetric chemosensor based on protonated merocyanine in EtOH
چکیده انگلیسی

This Letter aimed to develop an efficient method for the determination of cyanide ion (CN−). A novel colorimetric chemosensor 4-[(1E)-2-(4-hydroxyphenyl)ethenyl]-1-allylpyridinium bromide (HPEAPB) was synthesized. HPEAPB displayed good selectivity toward CN− over other competing anions in ethanol. A color change from yellow to red was immediately observed upon the addition of CN− and the limit of detection (LOD) was 3.4 × 10−6 mol L−1. The sensing mechanism was discussed by UV-vis, 1H NMR titration, and a comparison study. Colorimetric test paper for CN− was prepared by attaching HPEAPB to a chromatography paper, which could be used to detect CN− in environmental samples as simply as a pH-indicator paper for pH value. The LOD of the test paper for CN− was 2.0 × 10−4 mol L−1. This detection method for CN− has potential applications in cyanide ion containing fields by combination of rapid and real-time advantages.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 55, Issue 19, 7 May 2014, Pages 3017-3023
نویسندگان
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