VOLUME MEASURING METHOD FOR INFINITESIMAL DROPLET AND SUBSTRATE FOR INFINITESIMAL DROPLET COLLECTION USED THEREFOR

摘要

PPROBLEM TO BE SOLVED: To provide a volume measuring method for infinitesimal droplets, less liable to produce errors when finding the volume of every infinitesimal droplet and capable of making a comparison between droplets discharged all at once from many discharge holes, and to provide a substrate for specimen collection suitable for performing such a volume measuring method for infinitesimal droplets. PSOLUTION: The problem can be solved by that the substrate 2 for specimen collection is prepared having a lyophilic area 22 surrounded by a liquid-repellent area 21, and a plurality of droplets 3 are deposited and spread in the lyophilic area 22 to form a liquid layer 4, the thickness of the liquid layer 4 is optically measured to find its volume based on the measurement result, and the volume of each infinitesimal droplet is found by dividing the volume by the number of droplets required. PCOPYRIGHT: (C)2004,JPO