DEVICE FOR DELIVERING DEFINED VOLUMES

摘要

A liquid dispensing device (90A) for delivering defined volumes comprising (a) a reagent fill channel (12), (b) one or more metering capillaries (14A-14C) connected to the reagent fill channel (12) and having an exit, and (c) one or more sources of gas (41) connected to the reagent fill channel (12), wherein after filling the one or more metering capillaries (14A-14C) the reagent fill channel (12) can be drained of liquid while liquid is retained in the one or more metering capillaries (14A-14C), and the source of gas (41) can be operated to eject the liquid in the metering capillaries (14A-14C).