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Frequently Asked Question
Questions asked by users might not always be phrased in the clearest way.
Difference between primary and secondary reference electrode (easy words)
Accepted Answer
Primary Reference Electrode (PRE)
* Standard potential is accurately known.
* Potential is highly reproducible and stable.
* Hydrogen electrode is the most common PRE.
* Used for calibrating other electrodes and measuring pH.
Secondary Reference Electrode (SRE)
* Standard potential is not exactly known.
* Potential is less reproducible and less stable.
* Calomel electrode is the most common SRE.
* Used for everyday laboratory measurements.
In easy words:
Primary reference electrodes are like the most accurate rulers, giving precise measurements. Secondary reference electrodes are like regular rulers, providing approximate measurements but are easier to use for daily tasks.
* Standard potential is accurately known.
* Potential is highly reproducible and stable.
* Hydrogen electrode is the most common PRE.
* Used for calibrating other electrodes and measuring pH.
Secondary Reference Electrode (SRE)
* Standard potential is not exactly known.
* Potential is less reproducible and less stable.
* Calomel electrode is the most common SRE.
* Used for everyday laboratory measurements.
In easy words:
Primary reference electrodes are like the most accurate rulers, giving precise measurements. Secondary reference electrodes are like regular rulers, providing approximate measurements but are easier to use for daily tasks.
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