Ion Selective Electrode (ISE) sensors are used to detect ionic concentration in aqueous solutions. Through discussions with several ISE sensor users and manufacturers, we have confirmed a fundamental issue with the ISE sensors currently on the market – electrode drift – which severely degrades the sensor’s operational performance and utility as a smart sensor.

In-situ ISE sensors have enormous potential across many industries (everything from environmental monitoring to medical/pharmaceutical controls), but the need for calibration to account for drift severely limits use of in-situ ISE sensors. ANB have identified an opportunity to investigate whether part of its novel electrochemical sensor platform can be used to address the issue of drift in ISE’s, in-situ, enabling the vast potential of the sensors to be realised in smart solutions. To address the issue of drift, ANB will utilise a novel means of verifying the electrochemical potential/performance of the reference electrode through the introduction of an additional voltammetric electrochemical measurement. The overall objective of this project is to research, develop and produce at least 5 modified laboratory scale prototype pH sensors utilising the novel self-calibration system over prolonged periods (up to 12 months).

Innovate UK

Innovate UK is the UK’s innovation agency. It works with people, companies and partner organisations to find and drive the science and technology innovations that will grow the UK economy. For further information visit

Categories: Newswebsite

Related Posts


Calibration Free pH Sensing in Hoaglands

Calibration Free pH Sensing in Hoagland Solution ANB Sensors are developing a solid-state pH Sensor which is calibration free, operates over a wide pH range and is specifically tailored for low buffer media. The sensor Read more…


ANB Showcase at Pittcon 2019

Pittcon is the world’s leading annual conference and exposition on laboratory science. Pittcon attracts attendees from industry, academia and government from over 90 countries worldwide. We had a very interesting week at Pittcon. We were Read more…


ANB Sensors Visit Queens University Belfast

In March we visited Belfast to discuss a collaborative project with The Queens University of Belfast, School of Biological Science, regarding pH sensing in cattle stomachs. The sensors would be aimed at monitoring Rumen Acidosis, Read more…