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Why is TISAB used in potentiometry
Accepted Answer
TISAB (Total ionic strength adjustment buffer) is commonly employed in potentiometric measurements, particularly with ion-selective electrodes, to establish a constant ionic strength in the solution. It helps to minimize the junction potential between the reference electrode and the sample solution. By maintaining a consistent ionic strength, TISAB reduces the impact of varying ionic concentrations in the sample on the electrode's potential response, leading to more accurate and reproducible measurements.
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