TestAmerica's New Methods and Capabilities

EPA Method 8260B SIM

Honolulu Laboratory

Method Application:

The method is used for a select group of analytes that drastically improves low level detection limits. The 82060B SIM method is ideal when running methanol preserved samples collected by incremental sampling methodology (ISM) for VOC analysis. The Honolulu laboratory can report Trichloroethylene (TCE) at 0.2ug/Kg.

Market Application:

The method is designed for those entities that perform incremental sub sampling for certain volatile chemicals of potential concern (COPC).

Hawaii's Department of Health (DOH) performed a characterization study with TestAmerica, on a U.S. Air Force base for subsurface contamination. The study focused on groundwater and soil gas data used in determining environmental risk hazards. In the investigation, core increment soil samples were extracted from contaminant locations and Single Ion Monitoring (SIM) analysis was applied, reducing the reported MDLs.

Advantages:

When performing an incremental sub sampling VOC process, field samples are preserved in methanol. This generally forces a dilution factor of 50, raising the reporting limits. The SIM approach allows the client to obtain reporting limits closer to the standard 8260 limits they expect, while performing the incremental sampling methodology.

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