High Resolution pH Measurements Using a Lab-on-Chip Sensor in Surface Waters of Northwest European Shelf Seas. - Victoire M. C. Rérolle; Eric P. Achterberg; Mariana Ribas-Ribas; Vassilis Kitidis; Ian Brown; Dorothee C. E. Bakker; Gareth A. Lee; Matthew C. Mowlem (Sensors, 2018)