Use: | Field screening of individual contaminants. See 7.1.6 for use with metals and 9.1.8 for use with explosives. |
Description:
Immunoassay technology relies on an antibody that is developed to have a high degree of sensitivity to the target compound. This antibody's high specificity is coupled within a sensitive colorimetric reaction that provides a visual result. The intensity of the color formed is inversely proportional to the concentration of the target analyte in the sample. The absence/determination is made by comparing the color developed by a sample of unknown concentration to the color formed with the standard containing the analyte at a known concentration.
Analytes:
1. Non-Halogenated VOCs | 2. Non-Halogenated SVOCs | 3. Halogenated VOCs | 4. Halogenated SVOCs |
5. PAHs | 6. Pesticides/Herbicides | 11. TPH |
Media:
Soil/Sediment | Water | Gas/Air |
BETTER | BETTER | Not Applicable |
Selectivity: | Technique measures the contaminant indirectly. |
Susceptibility to Interference: | Medium. |
Detection Limits : | 10-100 ppm (soil); 0.5-10 ppm (water). |
Turnaround Time per Sample: | Minutes. |
Applicable To:
|
Limitations:
EPA Methods:
Series 4000 | A11 Methods for Specific Analytes. |
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