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 TPH Fingerprinting» 

Case studies available:

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    Sitelab's fingerprinting analysis helps you identify the age or type of contamination on your site at a fraction of the cost compared to conventional laboratory forensic analysis.

    The proportions of a sample’s GRO and PAH concentrations will vary depending on how old and what type of petroleum contamination is present.  These signatures are then compared to Sitelab's unique database containing the signatures of hundreds of archived reference standards, oils and samples having known petroleum sources.  The case studies below highlight the performance testing samples using Sitelab's UVF analyzers for a variety of different contaminants.  

  

 

Concerned about Parking Lot Sealcoats?

There is growing concern - and regulations in the works - over the use of sealcoating products due to their high PAH content.  In much of the United States and elsewhere, most sealcoats sprayed on parking lots and driveways are made from coal tar which can be toxic to aquatic life and threaten public water supplies from rain and runoff.

 

Sitelab can be used to quickly check the concentrations of polycyclic aromatic hydrocarbons and determine if it's made from coal tar or alternative petroleum based black top sealants.

 

 

See case study

 

PAHs in Coal Tar vs. Asphalt Based Sealcoats

Performance study was conducted comparing two types of parking lot sealcoats tested for polycylic aromatic hydrocarbons.  GuardTop, LLC manufactures asphalt based sealcoats and provided samples of their product and a popular brand of a coal tar product from another manufacturer.  Samples were analyzed by two certified laboratories using two PAH methods and by Sitelab using the UVF-3100D and TD-500D analyzers.   

  See 5-page Performance Study
 
 

Jet Fuel Analysis from Airports

Jet fuels contain mostly kerosene.  JP-4 and JP-8 were once used for military aircraft.  JET-A is now used and is used for all commercial airliners.  AVGAS is used for small engine planes.  Examples shown here are from two sites contaminated by different types of jet fuel.  Soils and NAPLs collected from monitoring wells were analyzed.  Samples from an air force base have signatures similar to JP-4, while the signatures in samples from the airport in Alaska match well to a JET-A release.

  

  See case study
 
 

Fresh, Weathered and Octane in Gasolines

Samples from environmental consultants investigating gasoline sites in North Carolina were sent to Sitelab's laboratory for analysis.  Results show how soil, fuel and NAPL samples compare to different reference standards in Sitelab's database.          

 

   See case study
 

What's the Most Fluorescent Stuff on Earth?

Since the 1990s, Sitelab has tested just about every type of oil that exists on the planet.  Our analyzers detect hydrocarbons using ultraviolet fluorescence technology, which are highly sensitive to aromatic compounds found in most petroleum products, especially in coal tar creosotes.

  See case study
 
 
Mapping PAHs in Grand Calumet River

Contractor uses uses Sitelab on a large sediment site near Lake Michigan. 
Sitelab's PAH fingerprinting data and GPS coordinates for 100 sample locations were used to map the sediment contamination.  Test results revealed several "hot spots" and where fresher versus older crude oil exists in the river.
  See 4 page press release
 
 

More Examples of Sitelab fingerprinting data:

 »Test report for 1-day site investigation at shipyard

 »Soil results for residental UST site with heating oil

  

   What's in your TPH?
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