کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5134854 1493406 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Triphenylamine-based hypercrosslinked organic polymer as adsorbent for the extraction of phenylurea herbicides
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Triphenylamine-based hypercrosslinked organic polymer as adsorbent for the extraction of phenylurea herbicides
چکیده انگلیسی


- An organic polymer (PPTPA) was prepared via one-step self-polycondensation.
- The PPTPA is first used as an adsorbent for the extraction of phenylurea herbicides.
- The PPTPA showed satisfactory extraction efficiency for phenylurea herbicides.

A hypercrosslinked organic polymer material (named as PPTPA) was prepared by a simple one-step self-polycondensation of triphenylamine. A series of characterization experiments, including N2 adsorption, scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectra, and thermogravimetric analysis, were carried out to evaluate the morphology, structure and other intrinsic properties of the PPTPA. To investigate its adsorption performance, the PPTPA was used as the solid-phase extraction adsorbent for the extraction of phenylurea herbicides from water, milk and tomato juice samples followed by high-performance liquid chromatographic analysis. Under optimum conditions, good linearity for the analytes was observed in the range of 0.05-40.0 ng mL−1, 0.1-40.0 ng mL−1 and 0.5-40.0 ng mL−1 for water, milk and tomato juice samples, respectively. The established method also showed low limits of detection (S/N = 3) in the range of 0.008-0.01 ng mL−1, 0.01-0.03 ng mL−1 and 0.05-0.1 ng mL−1 for water, milk and tomato juice samples, respectively. The possible adsorption mechanism of the PPTPA towards the analytes was investigated, and the results demonstrated that the hydrogen bonding was the main interaction force between the PPTPA and the analytes. It suggests that the PPTPA can serve as a promisingadsorbent for the efficient pre-enrichment of organic compounds with more hydrogen-bonding donor sites.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1520, 20 October 2017, Pages 48-57
نویسندگان
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