| 摘要 |
PURPOSE: To avoid the necessity of dilution and to enable rapid on-line measurement by measuring the content of a first component in other component on the basis of the respective absorption coefficients of separated components. CONSTITUTION: A fluid mixture raw material is separated into components 1, 2 by a separator 10. The continuous amts. of the formed components 1, 2 from the side cuts 17, 18 of forming lines 15, 16 are supplied through a valve device 11 or a spectrum analyser 13 by the operation of a computer 12. The analyser 13 performs necessary absorptiometry and output data is supplied to the computer 12 by a spectrometer. The worthless component issued from the analyser 13 is discarded and a valuable component is returned to a line 15 (component 1) and a line 16 (component 2). The computer 12 calculates the amt.α21 of the component 2 from the output data of the analyser 13 to compare the same with a desired value. The separation parameter of the separator 10 is controlled so that the difference between the calculated content and the desired value is minimized.
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