کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10528761 | 960727 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new resonance scattering spectral method for the determination of trace amounts of iodate with rhodamine 6G
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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: A new resonance scattering spectral method for the determination of trace amounts of iodate with rhodamine 6G A new resonance scattering spectral method for the determination of trace amounts of iodate with rhodamine 6G](/preview/png/10528761.png)
چکیده انگلیسی
Under the conditions of 0.04 mol Lâ1 HCl-8.0 à 10â4 mol Lâ1 KI, there is a fluorescence peak at 540 nm and a synchronous fluorescence peak at 540 nm for rhodamine 6G (RhG). When there is IO3â, it reacts with exceed Iâ to form I3â. And I3â and RhG combine into ion association particles. The particles exhibit three resonance scattering peaks at 320, 400 and 595 nm. And there is fluorescence quenching at 540 nm. Iodine concentration is proportional to the intensity of the resonance scattering intensity at 400 nm in the range of 1.0-20 à 10â7 mol Lâ1. And a new resonance scattering spectral (RSS) method has been described for the determination of IO3â in salt samples. The spectral results have been verified that the formation of (RhG-I3)n association particles and solid-liquid interfaces are the main factor that cause the fluorescence quenching and resonance scattering effects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 530, Issue 1, 7 February 2005, Pages 131-134
Journal: Analytica Chimica Acta - Volume 530, Issue 1, 7 February 2005, Pages 131-134
نویسندگان
Ai-Hui Liang, Zhi-Liang Jiang, Biao-Ming Zhang, Qing-Ye Liu, Jie Lan, Xi Lu,