کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5140087 | 1495195 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A convenient method for determination of quizalofop-p-ethyl based on the fluorescence quenching of eosin Y in the presence of Pd(II)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
Eosin Y (EY) is a red dye with strong green fluorescence (λex/λem = 519 nm/540 nm). In our study, EY was chosen as a fluorescent sensor. Under optimum conditions, the fluorescence intensity of EY could be quenched by Quizalorfop-p-ethyl (Qpe) in the presence of Pd(II) and the resonance Rayleigh scattering (RRS) intensity had a remarkable enhancement, which were directly proportional to the Qpe concentration within a certain concentration range respectively, while the fluorescence and RRS unchanged in the absence of Pd(II). Based on fluorescence quenching, a novel, simple and sensitive fluorescence method could be developed to determination of Qpe. To our knowledge, this was the first fluorescence method for determination of Qpe was reported.108
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 174, 5 March 2017, Pages 301-306
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 174, 5 March 2017, Pages 301-306
نویسندگان
Huan Wu, Yanmei Zhao, Xuanping Tan, Xiaoqing Zeng, Yuan Guo, Jidong Yang,