| 摘要 |
The present invention relates to a microfluidic device comprising a microchannel ( 2, 4 ) providing for solvent contact between an open microarea (MA) carrying a microvolume ( 1 ) of a solvent and a reservoir ( 3 ) for the solvent, said reservoir ( 3 ) and said microchannel ( 2, 4 ) being adapted so that solvent evaporated from said microarea (MA) is continuously replaced by solvent from the reservoir ( 3 ) through said microchannel ( 2, 4 ). It further relates to method for replacing solvents evaporating from a microvolume ( 1 ) of solvent placed in an open microarea (MA) of a microfluidic device, wherein replacement is continuously taking place via a microchannel ( 2, 4 ) that transports solvent to the microarea (MA) from a solvent reservoir (vessel) ( 3 ). The device and method are suitable for preventing the desiccation of samples.
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