Concept
National Oceanography Centre Lab-On-Chip (LOC) Spectrophotometric pH sensor - Rerolle et al. (2012)
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL2112/1/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | NOC pH LOC Spectrophotometric sensor | ||
| Definition | A microfluidic pH Lab-On-Chip (LOC) sensor designed to perform automated in-situ analysis of seawater. The microfluidic cell comprises of an absorption cell, connected to light source and detector by two optical fibres, and a static mixer. Fluidics are controlled by four micro-inert valves directly mounted on the chip, and fluid propulsion is conducted using two syringe pumps. The light source is a tri-coloured LED with wavelengths of 435 nm and 596 nm corresponding to the absorption maximum of the pH indicator added to the seawater, and 750 nm to monitor sample turbidity. A linear array photodiode spectrophotometer (Ocean Optics HR4000) is used as detector. Short-term precision: 0.001 pH unit. Long term precision not yet evaluated. | ||
| Date | 2024-10-09T09:57:04 | ||
| Identifier | SDN:L22::TOOL2112 | ||
| Note | accepted | ||
| Is Version Of | TOOL2112 | ||
| version | 1 | ||
| Broader | |||
| L05 SeaDataNet device categories - (2) | |||
| Related | L35:MAN0003 |
National Oceanography Centre | |
B75:ORG00009 |
National Oceanography Centre (NOC), Southampton | ||
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