System zur Verdünnung von Flüssigkeit für Analysezwecke

摘要

The liquid dilution system dilutes a sample to be analyzed with a carrier by mixing to supply a diluted sample-containing liquid to an analytical measurement apparatus of flow type. The system comprises a first carrier pump (1) for feeding a first carrier; a sample injection unit (4) for injecting the sample into the first carrier; a main passage for flowing a liquid from the sample injection unit (4) to a detector unit (7) of an analytical measurement apparatus; a branching means (5) located downstream of the sample injection unit (4) for forming a branched passage (34) to remove a liquid mass partially from the main passage; a confluence unit (6) located downstream of the branching unit (5) for confluencing a second carrier; a second carrier pump (3) for feeding the second carrier to the confluence unit (6). Therein dilution and mixing of the sample with a carrier is done twice at the sample injection followed by confluence.