FRTR Field Sampling and Analysis Technologies Reference Guide

6 SAMPLE ANALYSIS TOOLS for VOCs, SVOCS, and PESTICIDES

Use:

Screening for chlorinated hydrocarbons in water and gas samples.

Description:

Semiconductor sensors are designed to respond electrically to the substance of interest.

Analytes:

1. Non-Halogenated VOCs
3. Halogenated VOCs

Media:

Soil/Sediment	Water	Gas/Air
Requires extraction to gas phase	BETTER	BETTER

Selectivity:	Technique measures the contaminant indirectly.
Susceptibility to Interference:	Medium.
Detection Limits :	100-1000 ppb (soil); 1-50 ppb (water).
Turnaround Time per Sample:	Minutes.

Applicable To:

Screen/Identify	Characterize Concentration/Extent	Cleanup Performance	Long-Term Monitoring
BETTER	ADEQUATE	BETTER	BETTER

Quantitative Data Capability:	Data become quantitative with additional effort.
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 Analysis:	Least expensive.

Limitations:

ASTM Standards/EPA Methods:

No applicable ASTM standards or EPA methods are cited for this technology.