Sitelab Corporation manufactures portable laboratory instruments and test kits used to measure concentrations of petroleum hydrocarbons in soil, sediment and water on-site. Popular tests include TPH, GRO, DRO, VPH, EPH, BTEX and PAHs. Customers use our UVF analyzers to help make better field decisions when investigating and cleaning up petroleum sites.
Sitelab's Ultraviolet Fluorescnece (UVF) technology is very sensitive to gasoline, jet fuel, diesel, coal tar, crude oil and many other types of PHCs. Hydrocarbon fingerprinting can also be performed for forensic analysis. Sitelab is the most accurate tool on the market. Test results directly correlate to certified laboratory methods, but at a much lower cost.
Test kits are available for preparing samples for analysis. These kits are used for soil, sediment or water. Samples are extracted in solvent and then analyzed for hydrocarbon concentration. Our instruments are easy to operate.
Sitelab's portable field analyzers use ultraviolet fluorescence technology; a very selective detection method useful for measuring many types of petroleum contaminants. UVF spectrometry's principle of operation relies on the electronic configuration of the molecular structure for organic compounds.
Aromatic hydrocarbons, which include ring-shaped compounds such as benzene, naphthalene, benzo[a]pyrene and many others, both excite and emit energy at specific wavelengths. The fluorometer's response of each sample is measured by the instrument on a linear, multi-point calibration curve using certified standards sensitive to the wavelengths of interest. Samples are extracted in solvent using disposable test kits and then placed into the analyzer for analysis. The concentration is displayed in only a few seconds.
Different petroleum products contain different types and amounts of aromatic hydrocarbons, which fluoresce differently from one another. Many contaminated sites also contain weathered fuel products which have degraded and changed in composition over time. Conventional laboratories use a variety of U.S. EPA or other state regulatory test methods using Gas Chromatography (GC) instrumentation. GCs can separate 'TPH' into gasoline range, diesel and oil range hydrocarbon fractions.
Sitelab provides a variety of different calibration kits to choose from in order to best match the source of your spill and provide maximum performance when comparing your field results to the confirmatory lab. Since our analyzers are calibrated using similar types of certified standards laboratories use for GC analysis and are fitted with high precision excitation and emission optics, test results generated directly correlate, providing very accurate and reliable results.
This method is recognized by regulatory agencies as a field screening device. The UVF-3100 was evaluated by U.S. EPA for TPH in soil measurement and ranked highest compared to six other manufacturer's devices. Sitelab Corporation was certified by New Jersey DEP beginning in 2009. It has been used on sites all over the world since 1998.
Sitelab's GRO, EDRO and TPH-Oil calibration kits are specially formulated products which contain both aromatic and aliphatic hydrocarbons. Samples contaminated with gasoline, jet fuel and many other types of petroleum contain mixtures of both aromatic and aliphatics. The aliphatics 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
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 clean up 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).
- Contact Sitelab to see which analyzer is most suitable for your project.
- See the 'SERVICES' page for weekly and monthly rental rates
Sitelab has several different instruments to choose from, which vary depending on your needs and application. Our calibration standards are specially formulated to generate very accurate results. See examples below:
- GRO: Gasoline Range Organics Hydrocarbons. This includes BTEX and other volatile compounds in the C6 to C10 range. Results correlate well to EPA Method 8015-GRO, VPH or similar GC methods.
- EDRO: Extended Diesel Range Organic Hydrocarbons. This includes hydrocarbons in the C10 to C36 diesel and oil range. Results correlate well to EPA Method 8015-DRO, EPH or similar GC methods.
- PAHs: Polycyclic Aromatic Hydrocarbons. Results correlate well to the 16 PAHs reported by EPA Method 8270 by GC/MS.
- TPH-Oil: Total Petroleum Hydrocarbons. This includes hydrocarbons in the C10 to C50 range. This test is used for 'Oil & Grease' applications testing crude oil.
The U.S. EPA evaluated Sitelab and six other manufacturers for measuring total petroleum hydrocarbons in soil. Tetra Tech, Inc. was contracted to manage this $800,000 project.
Sitelab tested over 200 samples using our UVF-3100A analyzer for both Gasoline Range Organics, Extended Diesel Range Organics and Total Petroleum Hydrocarbons (TPH as combined GRO and EDRO). Sitelab was the only developer who performed and reported TPH as well as GRO and EDRO separately, just like the reference laboratory.
'The UVF-3100A exhibited the following desirable characteristics of a field TPH measurement device; (1) good accuracy, (2) good precision, (3) high sample throughput, (4) low measurement costs and (5) ease of use.'
Sitelab Corporation has been selling and renting field-based test equipment since 1998. Our analyzers are used all over the world. We also provide laboratory services. See 'SERVICES' for pricing and turnaround time.
Not sure what type of TPH you have on your site?
The UVF-3100D is fitted with 3 sets of optical filters used to detect gasoline range and polyaromatic range contaminants separately from one another.
By testing a sample for GRO, Total PAH and Target PAH concentrations using Sitelab's GRO and PAH calibration kits, the ratios or 'signatures' exhibited can be used identify the type or age of petroleum contamination.
This forensic method is useful on sites contaminated by unknown petroleum sources or to see if the contaminant is fresh or weathered. Soil, sediment, water or oil samples can be analyzed.
Need laboratory analysis? We specialize in testing oil on metals serving the food, drug and medical divice manufacturers. Applications incude testing parts and surfaces for hydrocarbon content to ensure they are clean and oil free.
- Environmental consultants use Sitelab to investigate where, how much and what type of contamination exists on a site.
- Contractors use Sitelab to help guide excavation activities to clean up the vertical and horizontal extent of petroleum resulting from underground storage tanks (USTs).
- Scientists uses Sitelab to fingperprint and identify the type and age of petroleum.
- Government regulators and emergancy response crews use Sitelab to assist with oil spills, natural disasters or military activities.
- Property owners with fuel oil spills send samples to Sitelab's laboratory for fast, affordable and reliable test results.
- Field technicians use Sitelab to monitor levels of TPH for bioremediation, disposal and other treatment methods.
- Large industrial sites, power plants, Brownfields, tank farms and refineries where high numbers of samples must be tested without the high cost and time delays of conventional laboratory analysis.
- Manufacturering companies test metal parts for quality control to ensure their products are free of oil.