کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10266367 | 459020 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Polarographic and voltammetric investigation of 8-hydroxy-7-(4-sulfo-1-naphthylazo)-5-quinoline sulfonic acid
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Polarographic and voltammetric investigation of 8-hydroxy-7-(4-sulfo-1-naphthylazo)-5-quinoline sulfonic acid Polarographic and voltammetric investigation of 8-hydroxy-7-(4-sulfo-1-naphthylazo)-5-quinoline sulfonic acid](/preview/png/10266367.png)
چکیده انگلیسی
The behaviour at HMDE and SMDE of 8-hydroxy-7-(4-sulfo-1-naphthylazo)-5-quinolinesulfonic acid has been studied by several techniques including Square wave voltammetry (SWV), Differential pulse plarography (DPP), Direct current polarography (DCP) and Cyclic voltammetry (CV). Current-potential curves recorded at HMDE and SMDE electrode provide information on electrode reaction mechanism. The reduction of a pre-protonated azo group involving a four-electron process and two peaks or waves, gives amine derivatives in acidic solutions. In alkaline solution the reduction process occurs at more negative potential with the formation of a stable hydrazo compound. The electrochemical reduction mechanism of the azo compound is suggested using SWV, DPP, DCP and CV techniques in aqueous solutions of varying pH.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 67, Issue 1, October 2005, Pages 9-14
Journal: Dyes and Pigments - Volume 67, Issue 1, October 2005, Pages 9-14
نویسندگان
Necati Menek, Yeliz Karaman,