Patent ID: 8511888

Claim:
A reagent preparing apparatus for preparing a reagent for processing a sample, by using a first liquid and a second liquid, comprising: a first liquid chamber for containing a first liquid; a second liquid chamber for containing a second liquid; a storage unit for mixing the first liquid and the second liquid; a constant amount liquid quantifying unit comprising: a constant amount holding instrument in fluid communication with the first liquid chamber, the second liquid chamber, and the storage unit, wherein the constant amount holding instrument is configured to transfer a constant amount of liquid from each of the first and second liquid chambers to the storage unit, and a first transfer flow path for transferring liquid from the constant amount holding instrument to the storage unit, wherein the first liquid chamber and the second liquid chamber are connected to the first transfer flow path between the constant amount holding instrument and the storage unit; and a controller configured to control the constant amount liquid quantifying unit so as to supply a first amount of the first liquid from the first liquid chamber to the storage unit by using the constant amount holding instrument and configured to control the constant amount liquid quantifying unit so as to supply a second amount of the second liquid from the second liquid chamber to the storage unit by using the constant amount holding instrument, so that a reagent is prepared from the first amount of the first liquid and the second amount of the second liquid in the storage unit.