MEMBRANE INTERFACE PROBE (MIP)

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The MIP tool is a screening tool that measures a relative response of VOC’s (Volatile Organic Compounds) such as petroleum hydrocarbons and chlorinated solvents. The Membrane Interface Probe is a screening tool for VOC contaminants. The system works on a basic principle of creating a larger pressure on the outside of a wire mesh, polymer embedded, stainless steel screen membrane. Through displacement of the soil, and a 120 degrees Celsius heater block, VOC’s naturally want to move to the path of the lease resistance which is located behind the membrane. A carrier gas passing by the inside of the membrane picks up the VOCs and sweeps them to the surface to be detected. The detectors consist of a PID (Photo Ionization Detector), FID (Flame Ionization Detector) and XSD (Halogenated Specific Detector).