کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5402862 | 1392744 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A turn-on fluorescent chemosensor for Hg2+ based on phenanthroline fluorophore
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
Dipyrido[3,2-a:2â²,3â²-c]-phenazine (L) was employed as a selectively fluorescent chemosensor for Hg2+ in DMF solution under buffered conditions with its fluorescence being strongly increased. The fluorescence increasing was attributed to the formation of L-Hg2+ by 1:1 complex ratio (K=3.7Ã105Â Mâ1), which constitutes the basis for the determination of Hg2+ with the prepared chemosensor. The experiment results also show that the response behavior of L to Hg2+ is pH independent in the range of pH 6.0-9.0 and show excellent sensitivity and selectivity for Hg2+ over other examined metal ions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 130, Issue 1, January 2010, Pages 52-55
Journal: Journal of Luminescence - Volume 130, Issue 1, January 2010, Pages 52-55
نویسندگان
Xiu-Li Wang, Wen-Yan Zheng, Guo-Cheng Liu, Hong-Yan Lin,