Micro-globule metering and sampling structure and microchips having the structure

摘要: An improved structure has a first channel and a-second that extend in specified directions, third open wall of said fourth is to second such it couples an end channel, property being less wettable (or insensitive capillary attraction) narrower than the other three channels; liquid introduced into drawn thereafter remains removed meter sample volume globule equal capacity channel. If already filled with liquid, modified further include fifth or thickness made having attraction).