www.wilksir.com infracal tog/tph analyzer, model cvh extraction procedure
TRANSCRIPT
![Page 1: Www.wilksIR.com InfraCal TOG/TPH Analyzer, Model CVH Extraction Procedure](https://reader035.vdocuments.us/reader035/viewer/2022062313/56649cc15503460f9498936b/html5/thumbnails/1.jpg)
www.wilksIR.comwww.wilksIR.com
InfraCal TOG/TPH Analyzer,InfraCal TOG/TPH Analyzer,Model CVHModel CVH
Extraction ProcedureExtraction Procedure
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The sample extraction can be done The sample extraction can be done using either a prescription bottle using either a prescription bottle
with a with a
septa cap or a separatory funnelsepta cap or a separatory funnel
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Extraction using a prescription Extraction using a prescription bottle with a septa capbottle with a septa cap
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Collect a measured amount of Collect a measured amount of samplesample
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For samples that will be stored for For samples that will be stored for more than a day or for samples more than a day or for samples with a high pH:with a high pH:
Adjust the pH to less than 2 with Adjust the pH to less than 2 with Hydrochloric acid or Sulfuric Acid Hydrochloric acid or Sulfuric Acid (typically 3-5 drops depending (typically 3-5 drops depending on buffers in sample)on buffers in sample)
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Add SolventAdd Solvent
10 parts sample to 1 part solvent
For example:For example:
For 150 ml of sample addFor 150 ml of sample add
15 ml of solvent 15 ml of solvent
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Shake for 2 minutesShake for 2 minutes
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Open the cap on the bottle during Open the cap on the bottle during the 2 minute shaking to relieve the 2 minute shaking to relieve the pressure the pressure
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Solvent is heavier than water and will Solvent is heavier than water and will sinksink
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Turn bottle upside down Turn bottle upside down
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Use the syringe to remove the solvent Use the syringe to remove the solvent
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Fill the cuvette with solvent Fill the cuvette with solvent
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Place the cuvette in the InfraCal Place the cuvette in the InfraCal frosted side to the front frosted side to the front
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Press the run button Press the run button
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Oil concentration displayed Oil concentration displayed
14
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Extraction using a separatory funnelExtraction using a separatory funnel
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Pour measured sample into Pour measured sample into separatory funnelseparatory funnel
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Measure one tenth of the sample size Measure one tenth of the sample size of solventof solvent
For example:For example:
For 150 ml of sample addFor 150 ml of sample add
15 ml of solvent 15 ml of solvent
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Pour the solvent into the sample Pour the solvent into the sample collection container to rinse interior collection container to rinse interior surfaces and cap of left over oilsurfaces and cap of left over oil
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Pour the solvent from the sample Pour the solvent from the sample container into separatory funnel container into separatory funnel containing samplecontaining sample
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Shake for 2 minutes Shake for 2 minutes
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Stop to vent during the 2 minutes Stop to vent during the 2 minutes shaking to relieve the pressure shaking to relieve the pressure
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Put the separatory funnel into Put the separatory funnel into the stand the stand
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Allow the solvent to sink to the Allow the solvent to sink to the bottom bottom
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Fill the cuvette with solvent Fill the cuvette with solvent
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Place the cuvette in the InfraCal Place the cuvette in the InfraCal frosted side to the front frosted side to the front
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Press the run button Press the run button
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Oil concentration displayed Oil concentration displayed
14
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Silica Gel ExtractionSilica Gel Extraction
The difference between TPH (Total The difference between TPH (Total Petroleum Hydrocarbon) and TOG Petroleum Hydrocarbon) and TOG (Total Oil and Grease) is the polar (Total Oil and Grease) is the polar
organics are removed from the extract organics are removed from the extract using silica gel. The remaining using silica gel. The remaining hydrocarbons are the non-polar hydrocarbons are the non-polar
components considered to be TPHcomponents considered to be TPH
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Silica Gel ExtractionSilica Gel Extraction
Put filter paper into funnelPut filter paper into funnel Add silica Add silica
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Silica Gel ExtractionSilica Gel Extraction
Put filter paper into funnelPut filter paper into funnel Add silica Add silica Put funnel into bottlePut funnel into bottle Put solvent extract throughPut solvent extract through
silica gelsilica gel
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Silica Gel ExtractionSilica Gel Extraction
Put filter paper into funnelPut filter paper into funnel Add silica Add silica Put funnel into bottlePut funnel into bottle Put solvent extract throughPut solvent extract through
silica gelsilica gel
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Silica Gel ExtractionSilica Gel Extraction
Put filter paper into funnelPut filter paper into funnel Add silica Add silica Put funnel into bottlePut funnel into bottle Put solvent extract throughPut solvent extract through
silica gelsilica gel Put solvent extract into cuvettePut solvent extract into cuvette
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Silica Gel ExtractionSilica Gel Extraction
Put filter paper into funnelPut filter paper into funnel Add silica Add silica Put funnel into bottlePut funnel into bottle Put solvent extract throughPut solvent extract through
silica gelsilica gel Put solvent extract into cuvettePut solvent extract into cuvette Put cuvette into InfraCal frosted Put cuvette into InfraCal frosted
side to the frontside to the front
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Press the run button Press the run button
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Oil concentration displayed Oil concentration displayed
14
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For questions please contact us at:For questions please contact us at:[email protected], or [email protected], or 203-855-9136
InfraCal TOG/TPH Analyzer,InfraCal TOG/TPH Analyzer,Model CVHModel CVH
Extraction ProcedureExtraction Procedure