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Determination of Ca2 + and Mg2 + in Oilfield Water by Automatic Potentiometric Titration with TRIS(77-86-1)

Determination of Ca2 + and Mg2 + in Oilfield Water by Automatic Potentiometric Titration with TRIS(77-86-1). The effects of the amount of buffer solution and the influencing factors on the volume of EDTA were obtained, and the amount of buffer solution was determined.

The Ca2 + and Mg2 + in the oilfield were measured by automatic potentiometric titration.Through the analysis of the amount of buffer solution and the amount of EDTA (C1 / 2EDTAE about 0.05 mol / L) ratio was 1 when the buffer solution was added at the same time as the amount of EDTA in the buffer solution and the total amount of EDTA was 1% : 1-2: 1, the titration curve in the two equal points of the jump are larger, the best titration, in this condition, do precision and accuracy of the experiment, the deviation and error is less than the standard SY / T5523 -2006, which is feasible for the determination of Ca2 + and Mg2 + in oilfield.

 

 

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