As with all electrodes maintenance is key to keeping your readings stable and accurate. The TRUEscience Dissolved Oxygen probe is a galvanic sensor with a fixed membrane cap. This galvanic probe provides good performance without the problem of membrane replacement associated with polorgraphic electrodes. It offers good sensitivity and response but the sample must be stirred during readings. Take care… Continue reading Top Tips for dissolved oxygen measurements
Month: February 2019
How’s best to store a Redox electrode?
Like pH electrodes, redox electrodes are stored with the electrode tip submerged in 3.0 Molar KCL (potassium chloride). The TRUEscience redox electrodes are shipped with a soaker bottle around the tip of the electrode, keep this for long term storage and make sure it is topped up with electrode storage solution when in use. For… Continue reading How’s best to store a Redox electrode?
How do you measure the pH of deionised water?
Measuring the pH of deionised water is about the most difficult application to handle. Most results are incorrect and very few ever endpoint. The issue is there is no conductivity and therefore the two half cells (pH and reference) cannot effectively communicate. One potential is basically subtracted from the other. If any one or both are… Continue reading How do you measure the pH of deionised water?