کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7610462 1493497 2016 39 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Magnetic solid phase extraction and static headspace gas chromatography-mass spectrometry method for the analysis of polycyclic aromatic hydrocarbons
ترجمه فارسی عنوان
استخراج فاز جامد مغناطیسی و روش اسپکترومتری جرم کروماتوگرافی گاز برای تجزیه و تحلیل هیدروکربن های آروماتیک چند حلقه ای
کلمات کلیدی
نمونه برداری از سربار هیدروکربن های آروماتیک چند حلقه، سازگار با محیط زیست، پروتئین های مؤثر کلسترول،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A magnetic solid phase extraction (MSPE) protocol combining a static headspace gas chromatography coupled to mass spectrometry (HS-GC-MS) method has been developed for extraction, and determination of 16 polycyclic aromatic hydrocarbons (PAHs) in drinking water samples. Magnetic nanoparticles (MNPs) were coated with 3-aminopropyltriethoxysilane and modified by cholesterol chloroformate. Transmission electron microscope, vibrating sample magnetometer, Fourier transform infrared spectrometry and X-ray photoelectron spectroscopy were used to characterize the cholesterol-functionalized sorbents, and the main parameters affecting the extraction as well as HS sampling, such as sorbent amount, extraction time, oven temperature and equilibration time have been investigated and established. Combination with HS sampling, the MSPE procedure was simple, fast and environmentally friendly, without need of any organic solvent. Method validation proved the feasibility of the developed sorbents for the quantitation of the investigated analytes at trace levels obtaining the limit of detection (S/N = 3) ranging from 0.20 to 7.8 ng/L. Good values for intra and inter-day precision were obtained (RSDs ≤ 9.9%). The proposed method was successfully applied to drinking water samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1429, 15 January 2016, Pages 97-106
نویسندگان
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