کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1237402 | 968893 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A ditopic colorimetric sensor for fluoride ion based on thiourea mercury complex
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
A novel ditopic chromogenic receptor, N-5-(8-hydroxy)quinoline-N′-4′-nitro-phenyl thiourea (1), was synthesized. The metal complex 1-Hg2+ showed sensitive and highly selective responses to F− over other anions such as CH3CO2−, H2PO4−, HSO4− and Cl−. 1-Hg2+–F− complex formed, which promoted the intramolecular charge transfer and led to a dramatic spectral change. The color of 1-Hg2+ solution changed from colorless to red upon addition of F−. Thus, a colorimetric assay of F− was developed in acetonitrile by naked-eye detection. F− behaved linearly in the 8.0 × 10−6 to 2.0 × 10−5 mol L−1 concentration range with LOD as 1.4 × 10−6 mol L−1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 71, Issue 3, 1 December 2008, Pages 814–817
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 71, Issue 3, 1 December 2008, Pages 814–817
نویسندگان
Mei-Zhen Sun, Fang-Ying Wu, Yu-Mei Wu, Wen-Ming Liu,