کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7592663 | 1492114 | 2015 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Imprinted propyl gallate electrochemical sensor based on graphene/single walled carbon nanotubes/sol-gel film
ترجمه فارسی عنوان
سنسور الکتروشیمیایی پروپیل گالات با استفاده از نانولوله های کربنی گرافن / تک سیمانی / سل ژل
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A novel imprinted sol-gel electrochemical sensor for the determination of propyl gallate (PG) was developed based on a composite of graphene and single walled carbon nanotubes (GR-SWCNTs). It was fabricated by stepwise modifying GR-SWCNTs and molecularly imprinted polymers and stored in 0.10 mol Lâ1 phosphate buffer solution pH 6.0, which endowed the sensor good sensitivity and selective recognition towards template molecules. The morphology and specific adsorption capacity of the sensor was characterized by scanning electron microscope and electrochemical methods, respectively. Under the optimized conditions, a linear range of the sensor to PG was 8.0 Ã 10â8-2.6 Ã 10â3 mol Lâ1 with a limit of detection of 5.0 Ã 10â8 mol Lâ1 (S/N = 3). The sensor exhibited specificity and selectivity towards template molecules as well as excellent reproducibility, regeneration and stability. Furthermore, the sensor could be applied to determine PG in edible oils, instant noodles and cookies with satisfactory results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 177, 15 June 2015, Pages 37-42
Journal: Food Chemistry - Volume 177, 15 June 2015, Pages 37-42
نویسندگان
Guilin Xu, Yu Chi, Lu Li, Shouhua Liu, Xianwen Kan,