A5016086545- Water Quality Monitoring Technologies
- Marine and coastal ecosystems
- Analytical Chemistry and Sensors
- Isotope Analysis in Ecology
- Water Quality Monitoring and Analysis
- Arctic and Antarctic ice dynamics
- Radiation Effects in Electronics
- Geology and Paleoclimatology Research
- Radiation Detection and Scintillator Technologies
- Microfluidic and Bio-sensing Technologies
- Methane Hydrates and Related Phenomena
- Electrowetting and Microfluidic Technologies
- Marine Bivalve and Aquaculture Studies
- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
National Oceanography Centre
2017-2025
Abstract Subglacial weathering releases biologically important nutrients into meltwaters that have the potential to influence downstream ecosystems. There is a need understand how accelerated glacial retreat could impact biogeochemical cycling in coastal regions near future. However, fjords—important gateways connecting Greenland ice sheet and oceans—are highly heterogeneous environments both space time. Here, we investigate temporal variability of nutrient dynamics glacier‐fed fjord (Nuup...
Here, we present a new in situ microfluidic phosphate sensor that features an improved "phosphate blue" assay which includes polyvinylpyrrolidone place of traditional surfactants—improving sensitivity and reducing temperature effects. The greater power economy analytical performance relative to commercially available alternatives, with mean consumption 1.8 W, detection limit 40 nM, dynamic range 0.14–10 μM, infield accuracy 4 ± 4.5%. During field testing, the was continuously deployed for 9...
The development of phosphate sensors suitable for long-term in situ deployments natural waters, is essential to improve our understanding the distribution, fluxes and biogeochemical role this key nutrient a changing ocean. Here, we describe optimization molybdenum blue method work using lab-on-chip analyzer evaluate its performance laboratory at two contrasting field sites. LOC sensor evaluated hourly time-series data from 56-day trial Southampton Water (UK), as well month-long deployment...
Microfluidic reagent-based nutrient sensors offer a promising technology to address the global undersampling of ocean chemistry but have so far not been shown operate in deep sea (>200 m). We report new family miniaturized lab-on-chip (LOC) colorimetric analyzers making situ nitrate and phosphate measurements from surface (>4800 This gives users low-cost, high-performance tool for measuring hyperbaric environments. Using combination laboratory verification field-based tests, we demonstrate...
Nuclear reactor process control is typically monitored for pure β-emitting radionuclides via manual sampling followed by laboratory analysis, leading to delays in data availability and response times. The development of an situ microfluidic Lab on Chip (LoC) system with integrated detection capable measuring presents a promising solution, enabling reduction occupational exposure cost monitoring whilst providing improved temporal resolution through near real-time acquisition. However, testing...
Nuclear reactor process control is typically monitored for pure β-emitting radionuclides via manual sampling followed by laboratory analysis, leading to delays in data availability and response times. The development of an in-situ microfluidic Lab on Chip (LoC) system with integrated detection capable measuring presents a promising solution, enabling reduction occupational exposure cost monitoring whilst providing improved temporal resolution through near real-time acquisition. However,...