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5 EXTRACTION METHODS

5.2 THERMAL DIGESTION


Use: Preparing soil and water samples for instruments requiring a gaseous phase analysis.

Description:

The term digestion is commonly used when heating is involved in wet chemistry analytical procedures. Colorimetric field test kits often involve an initial digestion step.

Analytes:

7. Metals 8. Radionuclides 9. Inorganics

Media:

Soil: Ground Water: Surface Water: Gas/Air:
MINIMUM MINIMUM MINIMUM Not Applicable
Maximum Depth: Not Applicable.
Production Rate: Sample is available quickly.
Investigation Derived Waste Volume: Medium volume of waste.
Technology Status: Commercially available technology with moderate 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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