Top Tips for dissolved oxygen measurements

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

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?