کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7138977 | 1462018 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Stripping voltammetric determination of europium via ultraviolet-trigger synthesis of ion imprinted membrane
ترجمه فارسی عنوان
تعیین ولتامتری برشی از یوروپیوم از طریق سنتز ماژور غشاء یونی
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کلمات کلیدی
اروپائیوم، ماشه ماوراء بنفش الکترود چاپ شده روی صفحه یون غشای داخلی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
To solve the problem that the ion-imprinted membrane modified on glassy carbon electrode (GCE) usually easily falls off, a screen printed electrode (SPE) which has a relative rough surface than GCE, was selected as the base electrode for preparation of an ion-imprinted sensor for determination of Eu(III). The sensor was obtained by modifying SPE successively with carboxylic multiwalled carbon nanotubes (MWCNs-COOH) as signal amplifying element and Eu(III) ion-imprinted membrane (Eu(III)-IIM) as specific recognition material. To avoid damaging SPE by thermal initiation, the Eu(III)-IIM was prepared via radical photopolymerization at 380â¯nm using azobisisobutyronitrile (AIBN) as initiator. Differential pulse adsorptive stripping voltammetry (DPASV) was used for determination of Eu3+ by the obtained sensor. After the detection condition was optimized in detail, the sensor showed a linear response to Eu3+ in the concentration range of 1.0â¯Ãâ¯10â7-1.0â¯Ãâ¯10â3â¯molâ¯Lâ1 with the detection limit of 4.0â¯Ãâ¯10â8â¯molâ¯Lâ1. The obtained sensor possesses of good regeneration, stability and practicability, it can maintain more than 95% of its original response after used more than 30 times or stored in the water for two months. The satisfactory results with the relative standard deviation (RSD) of less than 3.5% (nâ¯=â¯5) were obtained for the determination of europium in water samples by the novel sensor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 271, 15 October 2018, Pages 329-335
Journal: Sensors and Actuators B: Chemical - Volume 271, 15 October 2018, Pages 329-335
نویسندگان
Jin Chen, Huiping Bai, Yande Li, Jiayao Zhang, Peng Liu, Qiue Cao,