| 摘要 |
PURPOSE:To determine a concentrating quantity of a liquid to be measured by providing a change-over valve changing over or connecting alternately a condensing column to an eluate flow path and the measuring liquid flow path, a timer controlling the driving and a pump holding the measuring liquid flow rate to a prescribed value. CONSTITUTION:A quantiative pump 3 begins the driving by command from the timer 5, and the change-over valve 1 is changed over after T hour. Thus the quantity to be measured corresponding to a product of a flow rate U and the time T predetermined respectively to the pump 3 and the timer 5 is condensed by the condensing column 2, and the measuring liquid is transported with the eluate to a seperation column 11. The aimed charge ion species in the measuring liquid is separated at the column 11, and the eluate thereat is sent to a suppressor 12b. The ion exchange is performed at the suppressor, and the background in the detection of aimed charge ion is decreased. Then a conductivity of the liquid is detected at a detector 13 and the charge ion species is analyzed quantitatively. As the result, trace concn. ion species and high concn. ion species can be analyzed exactly by one quantitative analyzer. |
