کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
29072 | 44118 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly selective and sensitive twin-cyano-stilbene-based two-photon fluorescent probe for mercury (ii) in aqueous solution with large two-photon absorption cross-section
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Highly selective and sensitive twin-cyano-stilbene-based two-photon fluorescent probe for mercury (ii) in aqueous solution with large two-photon absorption cross-section Highly selective and sensitive twin-cyano-stilbene-based two-photon fluorescent probe for mercury (ii) in aqueous solution with large two-photon absorption cross-section](/preview/png/29072.png)
چکیده انگلیسی
The fluorophore derived from stilbene with two cyano groups in a single aromatic ring shows reasonably large two-photon absorption cross-section and emits strong two-photon fluorescence. A water-soluble two-photon sensor composed of the fluorophore containing bis[2-(2-hydroxyethylsulfanyl)ethyl]amino group (ionophore) has a very high sensitivity and selectivity for Hg2+ in water. It can be used to detect trace Hg2+ in near neutral aqueous solution (pH > 6.5), and its binding constant (log K) for Hg2+ is as high as 5.72 ± 0.03. Nitrogen atom property and the sulfur atom number on the ionophore are believed to be responsible for the unique selectivity of probe 1 for Hg2+.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 199, Issues 2–3, 25 September 2008, Pages 144–149
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 199, Issues 2–3, 25 September 2008, Pages 144–149
نویسندگان
Chibao Huang, Jiangli Fan, Xiaojun Peng, Ziyang Lin, Baoping Guo, Anxiang Ren, Jingqiang Cui, Shiguo Sun,