The Kemtrak FL007 Oil in Water Analyzer detects oil in water using both fluorescence and mutation. These two measurement principles complement each other in this application.

Fluorescence: a phenomenon in which some of the Light absorbed by hydrocarbons is re-emitted at a higher wavelength. This requires a source of UV light.

The aromatic compounds in the oil are responsible for the fluorescence. Hence the ratio of aromatics to total oil must be constant to give consistent results.

Turbidity/light scattering: oil in water scatters light and can indicate ppm levels. Scattering is independent of oil type or aromatic content, so oil without aromatics or with low aromatic content could be detected. Other suspended solids in the oil will also interfere with light scattering.

Model: Fluorescence photometer FL007

Measurement principle
Simultaneous measurement of UV fluorescence and turbidity.

Measuring range
Fluorescence

• Measurement principle: UV fluorescence
• Excitation: 280 nm (high-performance UV LED light)
• Detection: 360 nm
• Nominal range: 0 - 5,000 μg/L PAHphe, ca. 0 - 200 ppm oil in water*
• Detection limit: 0.1 μg/L PAHphe, ca. 0.1 - 5 ppm oil in water*

• Measurement principle: turbidity measurement
• Nominal range: 0 - 10,000 FTU, ca 0 - 20,000 ppm oil in water
• Resolution: 0.5 FTU

• Typically <1% of the relevant measurement range

• Typically <±2% of reading