کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7607998 | 1493370 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hyper-crosslinked polymer nanoparticles as the solid-phase microextraction fiber coating for the extraction of organochlorines
ترجمه فارسی عنوان
نانوذرات پلیمری بیش از حد متصل به عنوان پوشش فیبر میکرو اکستراکتیو جامد برای استخراج کلرورسیم
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کلمات کلیدی
پلیمر بیش از حد متصل، میکروساختار جامد فاز، آفت کش های آلی کلرور، نمونه های سبزیجات،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A hyper-crosslinked polymer benzenedimethanol (HCP-BDM) was synthesized and explored as a solid-phase microextraction (SPME) fiber coating material. To prepare the HCP-BDM, 1,4-benzenedimethanol monomer was self-condensed via a simple Friedel-Crafts alkylation reaction. The physical-chemical properties of the HCP-BDM material were characterized by infrared spectroscopy, scanning electron microscopy, thermogravimetric and analysis nitrogen adsorption-desorption isotherms. The HCP-BDM coated fiber demonstrated excellent adsorption performance for some organochlorine pesticides (OCPs). An effective HCP-BDM fiber-based SPME method combined with gas chromatography-micro electron capture detector was established for the analysis of the OCPs from various vegetable samples. The linear ranges were observed from their corresponding limits of quantification (LOQs) to 50â¯ngâ¯gâ1 for the OCPs, with correlation coefficients varied from 0.9952 to 0.9992. Their limits of detection at S/Nâ¯=â¯3 ranged from 0.058 to 0.14â¯ngâ¯gâ1. The single fiber repeatability and fiber-to-fiber reproducibility, expressed as the relative standard deviations (RSDs), were from 3.4% to 8.8% and from 6.7% to 9.6%, respectively. The established method was finally applied to the analysis of the OCPs from cucumber, Chinese cabbage and tomato samples with satisfactory recoveries and repeatability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1556, 29 June 2018, Pages 47-54
Journal: Journal of Chromatography A - Volume 1556, 29 June 2018, Pages 47-54
نویسندگان
Wenchang Wang, Wenjin Wang, Shuaihua Zhang, Zhi Li, Chun Wang, Zhi Wang,