کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10560158 | 969706 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly selective and sensitive visualizable detection of Hg2+ based on anti-aggregation of gold nanoparticles
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Highly selective and sensitive visualizable detection of Hg2+ based on anti-aggregation of gold nanoparticles Highly selective and sensitive visualizable detection of Hg2+ based on anti-aggregation of gold nanoparticles](/preview/png/10560158.png)
چکیده انگلیسی
For the widely used gold nanoparticles (AuNPs)-based colorimetric probes, AuNPs generally change from dispersion to aggregation state accompanying with corresponding color turning from red to blue. Although colorimetric probes based on the anti-aggregation of AuNPs show exceptional selectivity and sensitivity, few examples have been reported in literature. A facile but highly sensitive and selective colorimetric probe based on the anti-aggregation of AuNPs transferred from the deactivation of aggregation agent 4,4â²-dipyridyl by Hg2+ was developed in this work. This reported probe is suitable for real-time detection of Hg2+ in water with a detection limit of 3.0Â ppb for Hg2+, and exhibits a selectivity toward Hg2+ by two orders of magnitude over other metal ions. The dynamic range of this probe can be conveniently tuned by adjusting the amount of 4,4â²-dipyridyl used.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 84, Issue 2, 15 April 2011, Pages 508-512
Journal: Talanta - Volume 84, Issue 2, 15 April 2011, Pages 508-512
نویسندگان
Yan Li, Ping Wu, Hu Xu, Zhongping Zhang, Xinhua Zhong,