CDOM-OCEAN-LV

Overview

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

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