کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1203205 | 965102 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Integration of ground aerogel particles as chromatographic stationary phase into microchip
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
C16 modified and ground monolithic silica aerogel particles in submicrometer size, as a new type of stationary phase was prepared and integrated in polydimethylsiloxane (PDMS) microchip. The aerogel particles were packed into the microfluidic channel using a simple procedure, which does not require any special frit or fabrication step to retain the particles. The subnanoliter volume of samples can be transported through the porous, short length of packing with low pressure (<3 bar). Food dyes as test components could be separated using low pressure within 6 s. A 50-fold preconcentration could be achieved by retaining 100 nL volume of sample on the packing and elution with methanol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1218, Issue 7, 18 February 2011, Pages 1011–1015
Journal: Journal of Chromatography A - Volume 1218, Issue 7, 18 February 2011, Pages 1011–1015
نویسندگان
Attila Gaspar, Andrea Nagy, Istvan Lazar,