| 摘要 |
<p>PURPOSE:To enable management of operation by making a suspension effluent from a centrifugal extractor pass through a supernatant filter to feed back the results of measurement with a photometer to a process in a short time. CONSTITUTION:A supernatant filter 7 interposed with a hydrophilic separation film/lipophilic separation films singly or in layers is provided on a piping from a centrifugal extractor 1 to a flow cell 4. Then, while an effluent from the extractor 1 is sent into the flow cell 4 after passing through the filter 7 by a liquid transferring means 8, bubbles and emulsion are removed from the liquid sent into the flow cell 4 with the hydrophilic separation film/lipophilic separation film interposed in the filter 7. On the other hand, when the passage of the liquid is sensed with a flow rate sensor 10, a signal is generated to close valves V1 and V2 and then, light leaving a photometer 6 is introduced to the flow cell 4 to perform measurement of absorbance and fluorescence therewith 6. After the measurement, the liquid is revered through the filter 7 by a pressure applied in a buffer tank 9 to be returned to the extractor 1.</p> |
