RFQ for 2x in situ Marine Nutrient Analysers
Defra Network eTendering Portal · United Kingdom
Key facts
- Contract value
- £29,000
- Awarded
- 15 Feb 2021
- Contract starts
- 08 Mar 2021
- Contract ends
- 08 Apr 2021
- Procedure
- Open procedure (below threshold)
- Buyer type
- Central government
Awarded to
| Supplier | Value |
|---|---|
| Clearwater Sensors | £29,000 |
Description
2 x in-situ marine nutrient (total oxidised nitrate i.e. nitrite plus nitrate) analysers.
A wet-chemical nutrient analyser is required for use in coastal and offshore marine monitoring. It will be fitted to our autonomous monitoring platforms, specifically a surface mooring (SmartBuoy) for continuous collection of nutrient data. It should be supplied with suitable mounting points. - The instrument should be capable of measuring dissolved total oxidised nitrogen (NO2- + NO3-) in a turbid coastal marine environment with a high degree of sensitivity, accuracy and stability: o Linear range: 0.1 - 150 umol l-1 o Analytical uncertainty <1% o Automatic drift correction using integrated calibration standard - It must be capable of being integrated with our existing data logger through a RS232 serial data connection. This output should be customisable to match our existing telemetry system. The instrument should also self-log and be able to store at least 4 months of data. - Reagents should ideally be provided as a service, with instructions for manufacturing our own as a secondary concern. Please provide expected lead times for replacement reagents. - Form factor, efficient use of reagents, resistance to fouling, low power consumption and depth capability are also assessment criteria. o Maximum dimensions 1.2 m x 1 m x 0.75 m (height, width, depth) - The instrument should manage its own power supply (batteries)
Categories (CPV)
- 38434000 Analysers
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