کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5130758 1490859 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Metal-organic aerogel as a coating for solid-phase microextraction
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Metal-organic aerogel as a coating for solid-phase microextraction
چکیده انگلیسی


- Metal-organic aerogel was synthesized and used as a novel fiber coating for SPME.
- The new coating material showed high surface area and good thermal stability.
- GC-ECD was used for determination of chlorobenzenes in environmental samples.
- The method showed fast extraction and better efficiency than PDMS commercial fiber.

An iron-based metal-organic aerogel was synthesized using metal-organic framework nanoparticles and applied as a fiber coating for solid-phase microextraction (SPME). Chemical, thermal and morphological characteristics of the material were investigated. Headspace SPME followed by gas chromatography-electron capture detection was used for the determination of chlorobenzenes in the environmental samples. The key experimental factors affecting the extraction efficiency of the analytes, such as ionic strength, extraction and desorption temperature, and extraction time were investigated and optimized. The applicability of the coating for the extraction of chlorobenzenes from the environmental samples including river and tap water, sludge, and coastal soil was evaluated. The detection limits were in the range of 0.1-60 ng L−1. The relative standard deviations were between 2.0 and 5.0%. The extraction recovery of the analytes was in the range of 88-100%. Compared to the commercial PDMS fiber, the present fiber showed better extraction efficiency.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 973, 22 June 2017, Pages 51-58
نویسندگان
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