LIQUID SWITCH, AND MICROCHIP AND MASS-ANALYZING SYSTEM USINGTHE SAME

摘要

A liquid sample (104) introduced in a main flow passage (101) is held in a d am portion (105), and a trigger liquid (106) is filled in a trigger flow passag e (102). In this state, the trigger liquid (106) is further introduced at desired timing into the trigger flow passage (102) so that the front end portion of the level of the trigger liquid (106) is advanced and the front e nd portion is brought to be into contact with the dam portion (105). This cause s the liquid sample (104) to move to the right (downstream side) in the figure , resulting in the liquid sample (104) flowing out to the downstream side of t he main flow passage (101). This means that the trigger liquid (106) provides priming to realize a liquid switch.