In microfluidics,capillary tubesof 100µm diameter are currently used; if the liquid is water (γ=72mN/m), and using the approximate value cosθ~1/2, the capillary rise is of the order of 14cm, which is quite important at the scale of a microcomponent. ...
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In microfluidics, capillary tubes of 100 µm diameter are currently used; if the liquid is water (γ=72 mN/m), and using the approximate value cos θ~1/2, the capillary rise is of the order of 14 cm, which is quite important at the scale of a microcomponent. Equation (2.58) char...
The rise or fall of the surface of a liquid within a very narrow tube due to a difference in cohesive force within the molecules of liquid and the adhesive force between the liquid and the wall of the tube is known as capillary action....
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US5759779 Jan 11, 1996 Jun 2, 1998 Dehlinger; Peter J. Detecting mutations in a polynucleotide analyte, combinatorial chemistry, array of capillary tubes with position addressable oligonucleotides adhered to inner wallUS5759779 1996年1月11日 1998年6月2日 Dehlinger; Peter J. Polynucleotide-array ...
In chemistry, biology, medical sciences and pharmaceutical industries, many reactions have to be checked by transporting and mixing expensive liquids. For such purposes, microfluidics systems consisting of closed channels with external pumps have been us
Using the capillary length, the capillary heights of tubes with different diameters can be calculated in Eq. 21.4. The results are depicted in Fig. 21.2. Fig. 21.2a shows the capillary height hc normalized to Lc2. The values shown are calculated for different wall contact angles Θ starting ...
Capillary electrophoresis has to be considered for the analysis of polar and charged analytes and thus follows the trend in pesticidechemistryto use more hydrophilic water-soluble active substances and for the requirement to include polar metabolites into the residue definition. For routine residue...
potential field is applied across the length of the capillary tube, and then ionic solutes in one buffer reservoir differentially migrate through the capillary into the other reservoir. Small diameter silica based tubes are employed as the capillaries in capillary zone electrophoresis (CZE) instruments...