Pocket Colorimeterâ„¢II Immunoassay Test Kits 

PCB in Soil | TPH in Soil and Water


PCB in Soil

PCBs (Polychlorinated Biphenyls) were widely used as dielectric and coolant fluids, for example in transformers, capacitors, and electric motors. Due to PCBs' toxicity and classification as a persistent organic pollutant, PCB production was banned by the United States Congress in 1979 and by the Stockholm Convention on Persistent Organic Pollutants in 2001.

For this test, soil samples are collected and PCB  is extracted. Sample extracts, calibrators, and reagents are added to cuvettes coated with antibodies that are specific for PCB. Color develops and is then measured with a Pocket Colorimeter II. The test requires about 20 to 30 minutes for complete analysis. As many as 10 cuvettes can be run simultaneously.

This method provides semi-quantitative screening based on thresholds for PCB in the following concentrations: 1 ppm, 5 ppm, 10 ppm and/or 50 ppm as Aroclor 1248.

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PDF Details on Immunoassay Colorimeter Methods


TPH in Soil and Water

TPH (Total petroleum hydrocarbon) is a mixture of many different compounds. People are exposed to TPH from many sources, including gasoline pumps, spilled oil on pavement, and chemicals used at home or work. 

This TPH test can be used for both soil and water testing. When testing soil, purchase the Soil Extraction Kit (below) and perform the Procedure for Soil Extraction. When testing water samples only, proceed directly with the Immunoassay Procedure for Soil Extracts and Water Samples. See document below for more information.

The test requires about 20 to 30 minutes for complete analysis. As many as 10 cuvettes can be run simultaneously.

This method provides semi-quantitative screening based on thresholds for TPH as diesel fuel in the following concentrations:
Soil 20, 50, 100, 200 ppm as diesel fuel
Water 2, 5, 10, 20 ppm as diesel fuel

Higher concentrations in water can be tested by first diluting the sample with deionized water.

More Information

PDF Details on Immunoassay Colorimeter Methods

Of Interest

Soil Extraction Kit

glassware

What is an immunoassay?

An immunoassay is a specific type of  test that measures the presence or concentration of a substance (referred to as the "analyte") in solutions. This type of test makes use of the binding between an antigen and its homologous antibody in order to identify and quantify the specific antigen or antibody in a sample. Hach immunoassay tests use antigen/antibody reactions to test for specific organic compounds in water and soil.