کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1203433 965113 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Au nanoparticles as a novel coating for solid-phase microextraction
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Au nanoparticles as a novel coating for solid-phase microextraction
چکیده انگلیسی

A novel solid-phase microextraction fiber based on a stainless steel wire coated with Au nanoparticles was prepared and has been applied, coupled with gas chromatography, to the extraction of aromatic hydrophobic organic chemical pollutants in rainwater and soil extract. The solid-phase microextraction fiber exhibited excellent extraction efficiency and selectivity. Effects of extraction time, extraction temperature, ionic strength, stirring rate and desorption conditions were investigated and optimized. Single fiber repeatability and fiber-to-fiber reproducibility were less than 7.90% and 26.40%, respectively. The calibration curves were linear in a wide range for all analytes. Correlation coefficients ranged from 0.9941 to 0.9993. The as-established SPME-GC method was used successfully to two real natural samples. Recovery of analytes spiked at 10 μg L−1 and 100 μg L−1 ranged from 78.4% to 119.9% and the relative standard deviations were less than 11.3%.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1217, Issue 52, 24 December 2010, Pages 8079–8086
نویسندگان
, , , , , ,