How do Sitelab Results Correlate to Certified Laboratory Test Methods?
Sitelab's GRO, EDRO, and TPH-Oil calibration kits are specially formulated products that contain both aromatic and aliphatic hydrocarbons. Samples contaminated with gasoline, jet fuel, and many other types of petroleum contain mixtures of both aromatic and aliphatic. The aliphatic compounds are inert; they do not fluoresce, but they are accounted for when calibrating Sitelab's instruments.
- Jet Fuels
- Diesel Fuel
- Heating Oils, No 2 Fuel Oil
- Heavy Fuel Oils, No. 6 Fuel Oil
- Motor Oils & Lubricating Oils
- Waste Oils
- Cutting Oils
- Transformer Oil
- Hydraulic Fluid
- Gas Condensates
- Drilling Muds
- Crude Oils
- Bitumen, Tar Sands, Asphalt
- Creosote, Coal Tars, Coal Ash
What Doesn't Fluoresce?
Fluorescence is not sensitive to straight-chain, aliphatic hydrocarbons. UVF cannot detect contaminants such as TCE, PCE or other chlorinated solvents. This includes methanol or hexane used for analysis.
Very Low Detection Limits
Due to UVF's high sensitivity, minimum detection limits are in the low ppm or ppb range, capable of meeting or exceeding most regulatory cleanup levels.
Detection limits vary depending on which analyzer and calibration kit is used. Detection limits are dictated by the lowest calibrator included with each calibration kit and are the same for soil, sediment or water samples. A solvent blank is used to 'zero' the instrument during the calibration process. Sample readings between zero and the lowest calibrator are reported as non-detect (ND).