کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
746774 894475 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel dibasic phosphate-selective electrode based on Ferrocene-bearing macrocyclic amide compound
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
A novel dibasic phosphate-selective electrode based on Ferrocene-bearing macrocyclic amide compound
چکیده انگلیسی

A new PVC membrane electrode for dibasic phosphate anion based on Ferrocene-bearing macrocyclic amide compound (L) has been prepared. The construction, response characteristic, selectivity and application of the electrode are investigated in detail. The best performance is exhibited by the electrode membrane containing 20 mol% TDMACl with o-NPOE as a plasticizer, and the electrode shows good selectivity towards HPO42− over a wide concentration range (1.0 × 10−2 to 1.0 × 10−5 M) with a Nernstian slope of 29.8 mV per decade at pH 9.0, and a detection limit of 2.2 × 10−6 M. It has a very short response time, less than 20 s, and can be used for at least 2 months without any divergence in response slope and linear range. The electrode displays high selectivity towards dibasic phosphate with respect to many other anions including Cl−, Br−, I−, NO3−, OAc−, and SO42−. The proposed electrode has been used as the indicator electrode in titration of phosphate with Ba(NO3)2 solution.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 126, Issue 2, 1 October 2007, Pages 609–615
نویسندگان
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