Potentiometric micro determination of the sulphate ion

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Abstract
In the measurement of fast neutrons, the amount of sulphur dispersed in the special films used is important. To determine their sulphur content a potentiometric titration has been studied in which sulphate ions, obtained by oxidation, are titrated with standard lead nitrate solution. The standard deviation in the titration value for 10-µg amounts of sulphur is lower than 1 per cent. As constant potential is rapidly attained after each addition of titrating solution, an automatic titration is carried out.

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