Application of carbonized hemp fibers as a new solid-phase extraction sorbent for analysis of pesticides in water samples
作者： Marija Vukcevic , Ana Kalijadis , Marina Radisic , Biljana Pejic , Mirjana Kostic
DOI: 10.1016/J.CEJ.2012.09.059
关键词: Specific surface area 、 Solid phase extraction 、 Sorption 、 Chemical engineering 、 Carbonization 、 Sorbent 、 Chemistry 、 Waste management 、 Carbon 、 Potassium hydroxide 、 Extraction (chemistry)
摘要: Abstract There is a growing interest in utilization of abundantly available materials, bio-mass or industrial byproducts, as precursors for the preparation carbon materials. Short hemp fibers, acquired waste from textile production, were used low-cost precursor production materials sorbent solid-phase extraction, pesticide analysis water samples. Different prepared by carbonization unmodified and chemically modified fibers. Activation carbonized with potassium hydroxide improves sorption properties fibers increasing specific surface area (up to 2192 m 2 /g) amount oxygen groups. The following parameters that may affect extraction procedure efficiency optimized: different elution solvents pH value solution. Extracts analyzed liquid chromatography–tandem mass spectrometry technique. For this study pesticides belonging chemical classes chosen. Obtained results indicate activated could be successfully applied
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