Welcome to site-lab.com. Hydrocarbon Fingerprinting Applications

TPH Fingerprinting»

See how PAHs are tested and fingerprinted on different contaminated sites with Sitelab's UVF-3100D:

Customer uses Sitelab to fingerprint GRO and DRO in LNAPL from a large, subsurface plume of oil...

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

Here's how it works...

1. Extract and prepare samples in solvent using Sitelab test kits. Soil, sediment, water or oil (NAPL) samples can be analyzed. See our Test Procedures for details. Samples only have to be extracted once.

2. Test for GRO (BTEX): Calibrate the UVF-3100D analyzer using Sitelab's GRO Calibration Kit on the Slot B optical filters. Test sample and record concentration. The sample extract can be re-tested for EPH and PAHs.

3. Test for EPH C11-C22 Aromatics (Total PAHs): Rotate the optical filters to Slot A and recalibrate using Sitelab's PAH Calibration Kit. Test sample and record concentration.

4. Test for Target PAHs: Rotate the optical filters to Slot D and re-test sample. Recalibrating is not necessary. The PAH calibration kit fluoresces the same on D as on Slot A. Sample results, however, will be less than EPH.

5. Optional: Test the sample for Heavy PAHs using Sitelab's TD-500 analyzer for additional forensic analysis. The TD-500 uses a similar PAH Cal Kit, but has different sensitivity compared to the UVF-3100D.

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Compare Sitelab's GRO, EPH and PAH "Signatures" to fingerprint the source of petroleum contamination...

The proportions or ratios, of a sample’s GRO, EPH and PAH concentration 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.

Sitelab's field screening fingerprinting method provides fast, reliable forensic data without the high cost and delayed turnaround time typically associated with conventional laboratory techniques using GC instrumentation. In addition, the GRO, EPH and PAH results reported using the UVF-3100 analyzer are very accurate and will directly correlate to the certified laboratory methods, should confirmatory analysis be performed.

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