کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
751246 895212 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microchannel edge refractometry
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Microchannel edge refractometry
چکیده انگلیسی

The objective of the paper is to present an optical technique that allows to characterize in situ concentration fields in microfluidic systems. The technique is based on the measurement of the refraction index in the liquid phase, in the immediate vicinity of the walls that confine the fluids. We call this method microchannel edge refractometry. The method is non-intrusive. We describe the refractometry technique, using theory, numerics and experiments. We show a resolution and sensitivity on the order of 3 × 10−3 and 2 × 10−3, respectively. We apply the technique to analyze diffusion phenomena in T sensors, measure supersaturations and establish phase diagrams of ternary systems in dedicated microdevices.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 148, Issue 1, 30 June 2010, Pages 330–336
نویسندگان
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