Potentiometry null-point

Electrode Systems. Direct Potentiometric Measurements. Potentiometric Titrations. Null -point Potentiometry. Applications of Potentiometry. 

A technique utilizing the advantages of both differential measurement and titration is null-point potentiometry [37, 38, 83]. The same arrangement is used as described under (Z ), but concentration c is not constant and is varied until Cj = c = c. Then,... 

Winefordner, J. D., and M. Tin Separation of Trace Quantities of Bromide from Large Amounts of Chloride by a Distillation Method and Measurement of the Bromide by Precision Null-Point Potentiometry. Anal. Chem. 35, 382 (1963). 

Malmstadt, H. V., and J. G. Winefordner Precision Null-Point Potentiometry. A Simple, Rapid and Accurate Method for Low Concentration Chloride Determination. Anal. Chim. Acta 20, 283 (1959). 

Durst, A, R., and /. K. Taylor Modified Linear Null-Point Potentiometry. Anal. Chem. 39, 1374 (1967). 

Electrode systems. Direct poientiometric measurements. Potentio-metric titrations. Null-point potentiometry. Applications of potentiometry. 

The precision of the differential potentiometric method can be improved by using null-point potentiometry [15—19]. The ion concentration is measured, not from a single potential reading, but by adjusting the composition of one of the half-cell solutions to matdi the other until a potential (the null, or bias poten-... 

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