کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7610078 | 1493478 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Application of porous membrane-protected chitosan microspheres to determine benzene, toluene, ethylbenzene, xylenes and styrene in water
ترجمه فارسی عنوان
استفاده از میکروسپرس های کیتوزان محافظت شده با غشای متخلخل برای تعیین بنزن، تولوئن، اتیل بنزن، کزیلن و استایرن در آب
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Chitosan (CS) microspheres were synthesized by the precipitation method and cross-linked with glutaraldehyde. The cross-linked CS microspheres (20 mg) were used as sorbents for the micro-solid phase extraction (μ-SPE) of benzene, toluene, ethylbenzene, xylenes and styrene (BTEX-S) from water. The μ-SPE device consisted of a sealed polypropylene envelope housing the microspheres for the evaluation of the extraction efficiency. Analysis was by gas chromatography-mass spectrometry (GC-MS). Under the optimized conditions, the method provided linearity range of between 0.5 and 50 μg Lâ1 with good correlation coefficients of between 0.985 and 0.998. The relative standard deviations of μ-SPE coupled with GC-MS were found to be between 2 and 3%. Method detection limits for BTEX-S were in the range of between 0.01 and 0.04 μg Lâ1 while the relative recoveries were in the range of between 59 and 97%. The proposed method is a cost effective, fast and environmentally friendly extraction technique with ease of operation and minimal usage of organic solvent.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1448, 27 May 2016, Pages 42-48
Journal: Journal of Chromatography A - Volume 1448, 27 May 2016, Pages 42-48
نویسندگان
Nyi Nyi Naing, Sam Fong Yau Li, Hian Kee Lee,