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     Sitelab evaluated it's UVF-3100 analyzer by testing 'whole volume' NELAC certified water samples provided by Environmental Resource Associates (Arvada, CO).  ERA is a leading manufacturer of quality control and proficiency testing standards sold to environmental laboratories around the world.  The samples contained spiked concentrations of GRO, DRO and TPH in water.  Sitelab correlated well to the other laboratories who participated in the studies.

Click the images below for details:

Performance Testing GRO in Water:

Gasoline range organics are tested to measure the concentrations of volatile petroleum hydrocarbons in the C6 to C10 carbon range.  Sitelab's UVF technology is selective to BTEX and other mono-aromatic compounds.  Results are compared to laboratories performing EPA Method 8015, 8260 and other gas chromatography methods. 

Performance Testing DRO in Water:

Diesel range organics are tested to measure the concentrations of petroleum hydrocarbons in the C10 to C28 up to C36 carbon range.  Sitelab's UVF technology is highly sensitive to TPH diesel and oil range compounds.  Results are compared to laboratories performing EPA Method 8015 and similar state regulatory GC-FID methods. 

Performance Testing TPH in Water:

Total Petroleum Hydrocarbons is a test common to the oil industry to measure the concentrations of crude oils, lubricating oils and waste oils in water.  The oil can be used to calibrate the analyzer for accurate TPH measurement.  Sitelab results correlated well to EPA Methods 418.1 by IR and 1664 by Gravimetric.

Disclaimer: Environmental Resource Associates, Inc. a subsidiary of Waters Corporation, does not endorse Sitelab or it's products. To learn more about ERA, visit their website at www.eraqc.com