کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
579629 | 1453140 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
9-Acridone-4-carboxylic acid as an efficient Cr(III) fluorescent sensor: Trace level detection, estimation and speciation studies
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
9-Acridone-4-carboxylic acid has been established as an efficient Cr(III) fluorescent sensor. The binding of this ligand with Cr(III) is confirmed by FTIR, thermal and mass spectral analysis of the product. Based on this chelation assisted fluorescence quenching, a highly sensitive spectrofluorometric method is developed for trace level detection, estimation and speciation studies of chromium in DMF-water. The ligand has an excitation and emission maxima at 408 nm and 498.4 nm, respectively. The equilibrium binding constant of the ligand with Cr(III) is 8.1378 Ã 104 as calculated using Stern-Volmer equation. Up to 9 Ã 10â6 mol Lâ1 of [Cr3+], linearity has been observed. The interference of foreign ions has been found to be negligible.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 188, Issues 1â3, 15 April 2011, Pages 274-280
Journal: Journal of Hazardous Materials - Volume 188, Issues 1â3, 15 April 2011, Pages 274-280
نویسندگان
Debasis Karak, Arnab Banerjee, Animesh Sahana, Subarna Guha, Sisir Lohar, Susanta Sekhar Adhikari, Debasis Das,