Titration control method
AssigneeMitsubishi Kasei Kogyo Kabushiki Kaisha
InventorSeiji Ishikawa
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Abstract
In a titration controlling method and apparatus wherein variations of a titration system caused by intermittent titrations are successively detected electrically, and the quantity of each intermittent titration is controlled by an electric signal obtained by the detection until an end point is reached. According to the present invention, the quantity of each intermittent titration is determined by dividing the quantity of the immediately prior titration, which has been memorized, by the variation of the titration system caused by the immediately prior titration.
Claims4
In a titration control method comprising the steps of successively detecting an electric potential representing a concentration of a subject material to be titrated, and controlling a quantity of each intermittent titration based on an electric signal obtained from detected values of a potential until an end point is reached, the improvement wherein said control of the quantity of each intermittent titration is carried out in accordance with a following equation:
- ##EQU4## wherein Q.sub.n :
- quantity of n-th intermittent titration, n being an integer larger than 0,
- Q.sub.n-1 :
- quantity of (n-1)th intermittent titration,
- K:
- a constant,
- X.sub.o :
- a value of said electric potential detected just before the (n-1)th intermittent titration Q.sub.n-1,
- X.sub.l :
- a value of said electric potential detected just after the (n-1)th intermittent titration Q.sub.n-1.
Dependencies are inferred from the claim text.