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
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Integration of ground aerogel particles as chromatographic stationary phase into microchip
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
نویسندگان
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