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Janice Carter, University of Cambridge

The person in WPI I deal with is Julian Williams and he has been very helpful in sorting out any problems we may have and finding items that we require. He is very pleasant to deal with and I have used WPI for the last 8 years and I am very happy with the service that they provide us.
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CDOM-OCEAN-HV

CDOM-OCEAN-HV

CDOM Open Ocean Water System, High Volume with Spectrometer



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Overview

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CDOM Manual
/ Download as PDF

What is CDOM?


Colored Dissolved Organic Matter (CDOM) is organic matter whose optical properties are measurable using WPI’s Liquid Waveguide Capillary Cell (LWCC). CDOM occurs naturally in water systems and is derived from organic tannins. CDOM concentration depends on the location where samples are taken, with coastal waters showing higher CDOM concentrations compared to open-ocean waters. In addition, CDOM absorption depends on open-ocean water depth. LWCCs are fiber optic flow cells that combine an increased optical pathlength (1–500 cm) with small sample volumes ranging from 2.4 μL to about 3 mL.

 

Benefits

  • Improved dynamic range for broader range of absorbance measurements
  • Improved sensitivity of measurement
  • Detect lower concentrations of solutes
  • Measurements can be made using smaller sample volumes
  • Compact, portable system for real time measurement on board a ship



Applications

  • Determine the biogeochemical cycles, e.g. the organic carbon-based cycle in the ocean.
  • Monitor and map of surface-water masses.
  • Measure the UV light penetration into the ocean to determine:           
                - Photosynthesis reaction with effects on phytoplankton population
                - Effect on oceanic food chains
                - Atmospheric oxygen concentration
  • Monitor the light absorption of CDOM as it relates to heat storage and the decline of sea ice.

 

Specifications

System Configurations

The CDOM-Ocean System < 1 m-1

 

LOW VOLUME HIGH VOLUME
Product Description Item # Product Description Item #
CDOM-OCEAN-LV System Includes: CDOM-OCEAN-LV CDOM-OCEAN-HV System Includes: CDOM-OCEAN-HV
LWCC, 250 cm pathlength LWCC-3250 LWCC, 100 cm pathlength LWCC-4100

PDA Spectrophotometer System. UV/VIS (190-720 nm)
with integrated deuterium/halogen light source

505067

PDA Spectrophotometer System. UV/VIS (190-720 nm) with integrated
deuterium/halogen light source

505067
(2) UV-Enhanced Fiber Optic Cables. 1 m, 600 μm Core WVLUXUVIS-S-600 (2) UV-Enhanced Fiber Optic Cables. 1 m, 600 μm Core. WVLUXUVIS-S-600
Ministar Peristaltic Pump 504011 PeriStar Pro Pump PeriPro-4LS
LWCC Injection System 89372 Injector Kit 72100
TTL Control Module for Ministar and/or Peristar 503120 TTL Control Module for Ministar and/or Peristar 503120
UV-Enhanced Fiber Optic Cable, 1m, 200µm core diameter WVLUXUVIS-S-200 UV-Enhanced Fiber Optic Cable, 1m, 200µm core diameter WVLUXUVIS-S-200
(2) SMA Bulkhead feed through Connector/Coupler 13395 (2) SMA Bulkhead feed through Connector/Coupler 13395

Accessories

Citations

RelatedItems

Our Clients Include:

GlaxoSmithKline
University College London
Novartis
Imperial College
University of Cambridge
University of Oxford

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