UviLux OIL

Highly sensitive UviLux OIL fluorometer for detecting oil in water.

With sensitivities beyond ppb level, the UviLux OIL sensor is ideal for detecting oil spills and contamination monitoring in all water environments.

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Highly sensitive UviLux OIL sensor for the detection of oil in water


UviLux OIL

oil spillUviLux sensors enable real-time, in situ detection of a wide variety of UV fluorescence parameters, including oil in water. The UviLux OIL is typically used for offshore monitoring at the source, oil spill response and leak detection.

The compact and highly sensitive fluorometers have excellent turbidity rejection and high ambient light rejection, making them suitable for use in a wide range of oceanographic and environmental water to depths of up to 1000m.

Features & Applications

Key features

  • In-situ, real time monitoring of crude oil in water
  • Highly sensitive readings to 0.03 ppb
  • Couple with FDOM sensor to remove environmental interference
  • Easy to integrate with monitoring platforms and systems
  • Depth rated to 1000m
  • Excellent turbidity rejection and high ambient light rejection
  • Service and support from dedicated technical team


  • Real time monitoring of oil in water
  • Oil spill response
  • Leak detection
  • Detection of crude oil contamination



UviLux OIL sensor technical specification

Parameters CDOM (crude)
Sensitivity (QSU) 0.03
Calibrated range (QSU) 600
Example compound:
sensitivity range (ppb)
Perylene: 0.003 – 50



Size Ø 70 mm x 149 mm
Weight in air 800 g in air / 150 g in water
Pressure housing Acetal C
Operating temperature -2 °C to + 40 °C
Storage temperature -40 °C to + 70 °C
Depth rating 1000 m
Connector Impulse MCBH6MP


Input voltage 9 – 36 V
Power requirements < 1 Watt @ 12 V

The sensitivity and calibrated range of each UviLux sensor has been standardised by cross-correlating each calibration solution against a certified reference standard of quinine sulphate using a bench-top spectrofluorometer.

Fluorescence is reported in Quinine Sulphate Units (QSU), where 1 QSU is equivalent to the fluorescence intensity recorded from 1 ppb quinine sulphate at an excitation wavelength of 347.5 nm and an emission wavelength of 450 nm. Factors are provided for selected compounds to convert the fluorescence output from QSU to ppb of the compound of interest


How is oil in water detected?

Fluorometry is effective in detecting oil such as during the Deepwater Horizon event because the source of the oil was clear and the position known. In more complex environments where sources of oil are less well defined, additional sensors increase confidence in specific signal detection, which is why we recommend the UviLux FUEL in combination. For more general work, such as detecting leaks from structures, tracking plumes, and distinguishing between seeps and anthropogenic sources, discriminating oil from other fluorescing substances is more challenging. This is especially true in variable environments such as shallow waters and where significant fresh water sources exist.

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