کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
579767 877826 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Carbon nanotube composite coated platinum electrode for detection of Ga(III)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
Carbon nanotube composite coated platinum electrode for detection of Ga(III)
چکیده انگلیسی
This study demonstrates the application of composite multi-walled carbon nanotube (MWCNT) polyvinylchloride (MWNT-PVC) based on 7-(2-hydroxy-5-methoxybenzyl)-5,6,7,8,9,10-hexahydro-2H benzo [b][1,4,7,10,13] dioxa triaza cyclopentadecine-3,11(4H,12H)-dione ionophore for gallium sensor. The sensor shows a good Nernstian slope of 19.68 ± 0.40 mV/decade in a wide linear range concentration of 7.9 × 10−7 to 3.2 × 10−2 M of Ga(NO3)3. The detection limit of this electrode is 5.2 × 10−7 M of Ga(NO3)3. This proposed sensor is applicable in a pH range of 2.7-5.0. It has a short response time of about 10 s and has a good selectivity over nineteen various metal ions. The practical analytical utility of this electrode is demonstrated by measurement of Ga(III) in river water.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 185, Issue 1, 15 January 2011, Pages 101-106
نویسندگان
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