Weighing-sending mechanism of analysis for aqueous solution and water quality analysis apparatus using the same

摘要

PROBLEM TO BE SOLVED: To provide a metering/feeding mechanism of an aqueous solution for analysis capable of being connected to many aqueous solution samples, automatizing pretreatment, and metering and feeding a sample water or a reagent accurately.;SOLUTION: A syringe pump 16 is connected to a common port A1 of a multi-port valve A, and a common port B1 of a multi-port valve B is connected to one port of distribution ports A2 of the multi-port valve A through a communicating tube 19. Four different sample passages are connected respectively to four distribution ports B2 of the multi-port valve B, and passages linked to reagents such as hydrochloric acid and an alkali solution and passages linked to a TC oxidation reaction part 2 or an IC reaction part 6, or the like are connected to the residual distribution ports A2 other than the port to which the communicating tube 19 of the multi-port valve A is connected.;COPYRIGHT: (C)2002,JPO