Transcript InfraCal TOG/TPH Analyzer - On

InfraCal TOG/TPH Analyzer,
Model CVH
Extraction Procedure
www.wilksIR.com
The sample extraction can be done using
either a prescription bottle with a
septa cap or a separatory funnel
Extraction using a prescription bottle
with a septa cap

Collect a measured amount of sample
For samples that will be stored for more
than a day or for samples with a high
pH:
Adjust the pH to less than 2 with
Hydrochloric acid or Sulfuric Acid
(typically 3-5 drops depending on
buffers in sample)

Add Solvent
10 parts sample to 1 part solvent
For example:
For 150 ml of sample add
15 ml of solvent

Shake for 2 minutes

Open the cap on the bottle during the
2 minute shaking to relieve the
pressure
Solvent is heavier than water and will sink

Turn bottle upside down
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Use the syringe to remove the solvent
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Fill the cuvette with solvent

Place the cuvette in the InfraCal
frosted side to the front

Press the run button

Oil concentration displayed
14
Extraction using a separatory funnel

Pour measured sample into
separatory funnel

Measure one tenth of the sample size of
solvent
For example:
For 150 ml of sample add
15 ml of solvent

Pour the solvent into the sample collection
container to rinse interior surfaces and cap
of left over oil

Pour the solvent from the sample
container into separatory funnel
containing sample

Shake for 2 minutes

Stop to vent during the 2 minutes
shaking to relieve the pressure

Put the separatory funnel into the
stand

Allow the solvent to sink to the
bottom

Fill the cuvette with solvent

Place the cuvette in the InfraCal
frosted side to the front

Press the run button

Oil concentration displayed
14
Silica Gel Extraction
The difference between TPH (Total Petroleum
Hydrocarbon) and TOG (Total Oil and
Grease) is the polar organics are removed
from the extract using silica gel. The
remaining hydrocarbons are the non-polar
components considered to be TPH
Silica Gel Extraction
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Put filter paper into funnel
Add silica
Silica Gel Extraction
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Put filter paper into funnel
Add silica
Put funnel into bottle
Put solvent extract through
silica gel
Silica Gel Extraction
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
Put filter paper into funnel
Add silica
Put funnel into bottle
Put solvent extract through
silica gel
Silica Gel Extraction
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Put filter paper into funnel
Add silica
Put funnel into bottle
Put solvent extract through
silica gel
Put solvent extract into cuvette
Silica Gel Extraction
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Put filter paper into funnel
Add silica
Put funnel into bottle
Put solvent extract through
silica gel
Put solvent extract into cuvette
Put cuvette into InfraCal frosted side to
the front

Press the run button

Oil concentration displayed
14
InfraCal TOG/TPH Analyzer,
Model CVH
Extraction Procedure
For questions please contact us at:
[email protected], or 203-855-9136