Oil in water
Oil in Water Monitoring, ensuring compliance and protecting cooling water from oil contamination
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Sensitivity
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Detects both dissolved and insoluble hydrocarbons
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Specificity
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Reduced turbidity effects
Method | Advantages | Disadvantages |
Lab Analysis | Standard method for determination of oil and grease in water | Complex procedure requiring skilled analyst and a representative sample using solvent extraction (usually hexane as per EPA method 1664A or pentane as per ISO 9377-2) |
Nephlometric Turbidity | Cost effective | Challenging to distinguish between suspended solids and oil/grease |
absorbance | Well known on line method | Challenging to distinguish between organic matter and oil/grease |
Visible Fluorescence | Various online systems setups available | Challenging to distinguish between organic matter and oil/grease, low sensitivity to polyaromatic hydrocarbons (PAH) |
UV Fluorescence | Highly sensitive to PAH | Requires calibration for specific application, not sensitive to aliphatic hydrocarbons |
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