کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7609569 | 1493401 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic covalent triazine framework for rapid extraction of phthalate esters in plastic packaging materials followed by gas chromatography-flame ionization detection
ترجمه فارسی عنوان
چارچوب مغناطیسی کشنده برای استخراج سریع استرات های فتالات در مواد بسته بندی پلاستیک و پس از شناسایی کروماتوگرافی گاز-یونیزاسیون شعله
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کلمات کلیدی
کامپوزیت چارچوب تریازین کوانتال مغناطیسی، استخراج فاز جامد مغناطیسی، استرها فتالات تشخیص یونیزاسیون گاز کروماتوگرافی-شعله، مواد بسته بندی پلاستیک،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Covalent triazine frameworks (CTFs), featuring with high surface area, good thermal, chemical and mechanical stability, are good adsorbents in sample pretreatment. Herein, magnetic CTFs/Ni composite was prepared by in situ reduction of nickel ions on CTFs matrix with a solvothermal method. The prepared CTFs/Ni composite exhibited good preparation reproducibility, high chemical stability, and high extraction efficiency for targeted phthalate esters (PAEs) due to Ï-Ï interaction and hydrophobic effect. The porous structure of CTFs/Ni composite benefited the fast transfer of target PAEs from aqueous solution to the adsorbents, and the integrated magnetism contributed to the rapid separation of adsorbents from sample and elution solution. Based on it, a novel method of magnetic solid phase extraction (MSPE) combined with gas chromatography-flame ionization detector (GC-FID) was developed for the analysis of PAEs including dimethyl phthalate (DMP), diethyl phthalate (DEP), di-n-butyl phthalate (DBP), benzyl butyl phthalate (BBP), di-2-ethylhexl phthalate (DEHP), and di-n-octyl phthalate (DNOP) in plastic packaging materials. Under the optimal experimental conditions, the limits of detection (LODs, S/NÂ =Â 3) for six PAEs were found to be in the range of 0.024-0.085Â mg/kg. The linear range was 0.32-16Â mg/kg for DMP, DEP, 0.08-80Â mg/kg for DBP, 0.16-32Â mg/kg for BBP, DEHP, and 0.32-32Â mg/kg for DNOP, respectively. The enrichment factors ranged from 59 to 88-fold (theoretical enrichment factor was 133-fold). The proposed method was successfully applied to the analysis of PAEs in various plastic packaging materials with recoveries in the range of 70.6-119% for the spiked samples. This method is characterized with short operation time, high sensitivity, low consumption of harmful organic solvents and can be extended to the analysis of other trace aromatic compounds.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1525, 24 November 2017, Pages 32-41
Journal: Journal of Chromatography A - Volume 1525, 24 November 2017, Pages 32-41
نویسندگان
Zijun Yan, Man He, Beibei Chen, Bo Gui, Cheng Wang, Bin Hu,