This time saving feature allows you to test samples for both PAH fractions at
once, by rotating the optics from Slot A to Slot D and
re-analyzing the sample. The ratios, or proportions, of a
sample’s Total PAH and Target PAH results will vary
depending on how old and what type of petroleum
contamination exists.
Example:
Soil below a fuel oil tank once containing heating oil is
1,000 ppm EPH and 40 ppm Target PAH.
The drop in concentration is 25 times lower,
indicating the spill is not fresh, but fairly weathered and
degraded (see chart to right).
The Target PAH optics are
an integral part of Sitelab’s fluorescence fingerprinting
method for hydrocarbon identification.
When used with the UVF-3100’s GRO analysis on the
Slot B optics, requiring a separate calibration for testing
the volatile C6-C10 BTEX fraction, the fluorescence
signatures exhibited provides additional forensic screening
data useful for delineating sites having unknown petroleum
sources.
»Click here for more
UVF
Fingerprinting
Applications