Inexpensive ion-selective syringe electrodes can quantify potassium levels in food and pharmaceuticals

The intensive development of new technologies, especially in the field related to the construction of new portable devices used as sensors for the detection of many chemical compounds, has brought many surprising solutions. One of them is an electronic tongue that can answer various questions about unknown samples: presence and amount of some specific compound, contamination, spoilage, or providing seemingly unmeasurable information such as taste.