microfluidic sequential injection and mixing in a capillary

gravity flow was stopped by the capillary force(surface tension) while changing slotted vials at capillary, based on sampling time, nanoliter sample and reagents could be introduced.
the laminar flow and Taylor dispersion could interpret the effect of mixing downstream quantitatively.
Anal. Chem., 78 (18), 6404 -6410
http://pubs.acs.org/cgi-bin/abstract.cgi/ancham/2006/78/i18/abs/ac060714d.html

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