New White Paper features Solvents for Oil and Grease in Water Measurements


Source: Spectro Scientific

April 3, 2013 - East Norwalk, CT -- A White Paper entitled, “Solvent Choices for Infrared Testing of Oil and Grease in Water” was recently published by Wilks Enterprise, Inc. Infrared (IR) analysis is widely used worldwide for determining the amount of oil and grease in water as it is a cost-effective measurement technique that can be easily done on-site or in a laboratory. Since water is a strong absorber in the mid-IR region where oil and grease is measured, a solvent is used to extract the oil prior to analysis.

As there are numerous solvents that can be used for oil in water measurements, it is important to know the various factors that should be considered when choosing a suitable solvent.  For example, if your oil sample contains light end volatile components that you wish to measure, it is best to choose an infrared transparent solvent for the extraction process to enable the extract to be measure by transmission.  If you wish to have your data correlate with EPA Method 1664, hexane is the best choice of solvlent.

This White Paper discusses a number of factors that will affect solvent choice including measurement range of samples, availability of solvent, cost, toxicity, disposal requirements, and flammability.

For a free copy of the White Paper, ““Solvent Choices for Infrared Testing of Oil and Grease in Water”, please contact:� Wilks Enterprise, Inc., 25 Van Zant Street, Ste. 8F, E. Norwalk, CT� 06855 USA, TEL: 203-855-9136, FAX: 203-838-9868, Email:,

Web Site--, or to download the paper --

About Wilks Enterprise, Inc.

Headquartered in E. Norwalk, Connecticut, Wilks Enterprise specializes in easy-to-use, portable mid-infrared analyzers for specific measurement applications. All Wilks analyzers have been specifically designed for on-site use by non-technical personnel and are used for a wide variety of applications in the biofuels, environmental, petrochemical, quality control, and manufacturing industries. These portable analyzers enable analytical measurements to be made in the field, helping to eliminate the wait for off-site lab results.

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