| Use: | Relatively new and simple technique for extracting contaminants from water. |
Description:
Membrane extraction uses extractant fluids containing organic solvents, such as hexane, flowing through a tubular silicone rubber membrane to selectively extract and concentrate organic compounds of interest from a sample flowing outside the tube. In its simplest application, extractant fluid flows directly to the analytical instrument for analysis. For more complex samples, additional separation steps might be required.
Analytes:
| 1. Non-Halogenated VOCs | 3. Halogenated VOCs |
Media:
| Soil: | Ground Water: | Surface Water: | Gas/Air: |
| Not Applicable | MINIMUM | MINIMUM | MINIMUM |
| Maximum Depth: | Not Applicable. |
| Production Rate: | Sample is available quickly. |
| Investigation Derived Waste Volume: | Small volume of waste. |
| Technology Status: | Commercially available technology with limited field experience. |
| Certification/Verification: | Technology has not participated in CalEPA certification and/or CSCT verification program. |
| Relative Cost per Sample: | Mid-range expense. |
Limitations:
ASTM Standards/EPA Methods:
No applicable ASTM standards or EPA methods are cited for this technology.
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