کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
746942 894485 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Integrated microfluidic gas sensor for detection of volatile organic compounds in water
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Integrated microfluidic gas sensor for detection of volatile organic compounds in water
چکیده انگلیسی

A polymer microfluidic system for monitoring of volatile organic compounds diluted in water is presented. The sensor platform employs silicon-based microhotplate gas sensors as active detection elements, using a silicon-in-plastic microfabrication technology to enable integration of individual sensor chips into a larger polymer microfluidic substrate. The fabrication process provides seamless fluidic and electrical interconnects between the silicon and polymer substrates. The chemical monitoring system is designed to sample a water source, extract solvent present within the aqueous sample into the vapor phase, and direct the solvent vapor past the integrated gas sensor for analysis. Design, fabrication, and characterization of a prototype system is described, and results from illustrative measurements performed using methanol, toluene, and 1,2-dichloroethane in water are presented.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 121, Issue 2, 20 February 2007, Pages 679–688
نویسندگان
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