کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
7232683 1470964 2015 5 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
A facile and sensitive detection of organophosphorus chemicals by rapid aggregation of gold nanoparticles using organic compounds
ترجمه فارسی عنوان
تشخیص چهره و حساس مواد شیمیایی ارگانوفسفره توسط جمع شدن سریع نانوذرات طلا با استفاده از ترکیبات آلی
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موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Organophosphorus (OP) chemicals are highly effective insecticides and germicides, and are the most widely used in agriculture. Unfortunately, OP compounds are some of the most toxic substances to humans, even at very low doses. Because detecting OP residues in agricultural products is essential, simple, sensitive, and particularly rapid on-site detection methods are required. Gold nanoparticles (AuNPs) have been used as signal-enhancing detection probes in the field of biosensors due to their size-dependent optical properties. When imidazole was added to AuNPs mixed with OP compounds, the AuNPs was aggregated and their color changed to purple. This caused the appearance of a new peak at 660-670 nm, which could be measured within approximately 30 s. Therefore, this method allows the detection of OP compounds, including diazinon, iprobenfos, and edifenphos, on-site at part-per-billion (ppb) concentrations, and also affords a straightforward method. Furthermore, the method was successfully applied in the determination of OP compound in a real sample (river water) with satisfactory results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biosensors and Bioelectronics - Volume 67, 15 May 2015, Pages 408-412
نویسندگان
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