1. InfraCal TOG/TPH Analyzers for Oil and Grease Measurements

2. Portable Field or Lab Analyzer
Results in < 30 seconds
Rugged and Easy to Use
Over 2000 in use worldwide today

3. Off shore oil rigs
Refineries
Industrial Wastewater
Metal Parts Cleaning

4. Monitoring Using an Offsite Lab=
Delayed Results

5. Monitoring Using an Offsite Lab
Typical commercial laboratory turn around - two days to two weeks
In-house hexane/gravimetric—several hours
Results in the discharge of effluent above regulatory limit for extended time
Add costs in time and dollars

6. Non Compliance
The sooner the industry or regulating agency can detect non compliance
The sooner the problem can be corrected

7. What is needed:
A quick, accurate and simple field and/or in-plant analysis: Available with the InfraCal TOG/TPH Analyzer

8. Two different models available depending on desired measurement range and extraction solvent
Model CVH
Model HATR-T2

9. CVH HATR-T2 Minimum Detection Limit Solvent Component Measured
CVH
HATR-T2
Minimum Detection Limit
2 ppm
8 ppm
Solvent
Perchloroethylene, Freon,
S-316
hexane, pentane,
Vertrel MCA
Component Measured
Measures all hydrocarbons
Measures hydrocarbons with a boiling point higher than the solvent—volatile hydrocarbons will be evaporated along with the solvent.
Instrument Repeatability
+/- 1 ppm
+/- 2 ppm
Other
Solvents are heavier than water and require a seperatory funnel or inverted vial with a septa cap to collect a solvent sample.
Solvents are lighter than water and solvent sample can be collected from the top of the container.

10. Measuring Oil in Water with the InfraCal TOG/TPH Analyzer
Acidify sample to pH of 2
Add 10 ml solvent to 100ml sample (10 to 1 ratio)
Shake for 2 minutes
A portion of the solvent is presented to the analyzer for analysis

11. Basic Measurement Concept
Infrared Analysis:
Hydrocarbons have a characteristic absorbance in the infrared region:
2930 cm-1 or 3.4 microns

12. Spectrum of a hydrocarbon (red)
Overlaid with a 3.4 micron filter (black)

13. Infrared Absorbance The amount of energy absorbed
is proportional to the amount of
oil/grease in the sample:
A higher oil and grease concentration has a higher infrared absorbance
A lower oil and grease concentration has a lower infrared absorbance

14. The Measurement of Oil using Hexane
Model HATR-T2

15. The hexane evaporates leaving an oil film on the crystal

16. Infrared light (source) is focused on the end of the crystal

17. The infrared light reflects off the surface of the crystal

18. At each reflection, the infrared light penetrates into the oil film and is absorbed by the oil at 2930cm-1
Infrared light
Oil Film

19. The infrared light is focused on to a detector containing a 2930cm-1 filter

20. A higher oil and grease concentration has a higher infrared absorbance
A lower oil and grease concentration has a lower infrared absorbance

21. Preset timer allows hexane to evaporate
After timer countdown and 15 second run time
Value is displayed

22. Cleaning the Trough Crystal
Add enough solvent to cover crystal
Wipe slowly across the crystal

23. The whole analysis, from sample
Analysis Procedure
The whole analysis, from sample
collection to final result, takes under 15
minutes
An operator with minimal training can
do the analysis

24. * the upper limit can be extended by dilution
Measurement Range
Hexane extraction: ppm*
* the upper limit can be extended by dilution

25. Repeatability of the Hexane/Infrared Method
Repeated runs on same sample:
Independent applications of sample:
Independently prepared samples: *
* Repeatability is dependent on how carefully the analyst does the extraction

26. The Measurement of Oil using S-316 or Perchloroethylene
Model CVH

27. ASTM Infrared Oil and Grease Method to replace Freon/IR Method
ASTM Method D : Standard Test Method for dimer/trimer of chlorotrifluoroethylene (S-316) Recoverable Oil and Grease and Nonpolar Material by Infrared Determination

28. ASTM Method D 7066-04 Uses a transmission cell - Model CVH
Measures volatile constituents

29. The Measurement of IR Absorption of an Oil Sample with a Cuvette
InfraRed light passes through the cuvette filled with solvent from the sample extract

30. The infrared light is focused on to a detector containing a
2930cm-1 filter
The amount of IR energy absorbed by the sample correlates to the concentration of oil and grease in the sample

31. Cuvette is filled with solvent extract

32. Cuvette is placed in the analyzer
After 30 seconds, Oil and Grease value is displayed

33. * the upper limit can be extended by dilution
Measurement Range
S-316 or Perchloroethylene: ppm*
* the upper limit can be extended by dilution

34. Repeatability of the S-316 or perc/Infrared Method
Repeated runs on same sample:
Independent applications of sample:
Independently prepared samples: *
* Repeatability is dependent on how carefully the analyst does the extraction

35. Comparing Different Analytical Procedures

36. Oil and Grease Not a unique chemical entity
A mixture of chemical species that vary from source to source
It is defined by the analytical procedure, ie: infrared, gravimetric, GC/FID

37. Comparing Different Analytical Procedures
Infrared
Gravimetric
Gas Chromatograph/Flame Ionization Detector (GC/FID)
Ultra Violet
Each method measures different physical properties

38. Gravimetry Ultra Violet
What is Measured
What is Not Measured
Technology
Infrared
All analytes removed from the samples by the extraction solvent that contain a C-H stretching absorption.
All analytes removed from the sample by the extraction solvent that are not volatilized.
All analytes removed from the sample by the extraction solvent that can be chromatographed and that respond to the detector.
Aromatics only
Very polar organics
Volatiles
Very polar or involatile compounds depending on choice of column, temperature program, time, etc.
Aliphahtics
Gravimetry
GC/FID
Ultra Violet

39. Note:
Ultraviolet (UV) measures only the aromatic hydrocarbons in a water sample. If the aromatic/ aliphatic ratio changes, the reading will not be correct.
Infrared measure both the aromatic and the aliphatic hydrocarbons.

40. Comparison of Hexane/Infrared and Hexane/Gravimetric
Meat Packing Plant Infrared Gravimetric Sample 1 67 ppm 70 ppm Sample After Grease Trap at a Restaurant Sample Sample Sample Sample Sample

41. Same Samples, Three Different Laboratories
InfraCal     InfraCal        Lab 1           Lab 2 Lab 3
Wilks         Customer
51                    23 51
62              61             74               43 47
71              --              76               70 49
63             53             66                
3                1               14                7 <5

42. Using this simple and quick infrared procedure, operators of a pretreatment system can:
Quickly and easily assess their system’s efficiency
Take samples before and after treatment
Change their system’s parameters and immediately test the results of their changes
See how their system functions under heavy loads
Avoid discharging effluent that is above the regulatory limit

43. Oil and Grease Analysis with the InfraCal TOG/TPH Analyzers
For questions or more information: