Vitamins, natural sugar and fruit pulp. Wonderful for your health, not so much for your pH measurement. Make sure to use an electrode with a fixed ground joint diaphragm. A ceramic pin diaphragm would quickly be blocked by such samples.
Lab measurements
827 pH lab Measuring the pH of fruit or vegetable juices in the laboratory is most comfortably done with the Metrohm 827 pH lab and the Metrosensor Unitrode.
Plant measurements
Routine measurements
At the plant, the pH of vegetable or fruit juices can quickly and comfortably be measured using the portable Metrohm 826 pH mobile plus a Metrosensor Unitrode.
Precision measurements
If you need an even higher precision for your plant measurements and you want to take advantage of Metrohm's unique electrode check, issue reports and reproducible measuring methods, you should opt for the Metrohm 780 pH Meter and a Metrosensor Unitrode.
