The marine science community requires accurate, cost-effective, and reliable pH sensors capable of long-term, stable operations in-situ from coastal to deep-sea environments. Spectrophotometric pH sensors, based on lab-on-chip (LOC) technology, offer measurement frequencies of every 10 min and provide good performance (pH difference 0.02 RMSE) relative to validation samples with long-term use. However, for applications where h...

We introduce for the first time a new product line able to make high accuracy measurements of a number of water chemistry parameters in situ : i.e., submerged in the environment including in the deep sea (to 6,000 m). This product is based on the developments of in situ lab on chip technology at the National Oceanography Centre (NOC), and the University of Southampton and is produced under license by Clearwater Sensors Ltd., a...