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Why Automating pH Measurement is Important

Automation of pH allows for a more consistent recording of measurements undertaken. However, it is important that the automation instrument has the means to accurately control the precision of the pH test been performed. Stirrer speeds, the type of stirrer used, electrode washing and pH meter settings all play a key role in accuracy and precision of any soil or water pH test. Studies have found that automated pH measurement is far more accurate than a manual measurement as the manual method usually involves using the pH electrode to stir the medium. This results in loss of sensitivity on the pH electrode junction (glass bulb) as the abrasive nature of the stirring in this manner slowly wears away the thin wall of the glass bulb. (more…)