TABLE I

Distribution of Relative Response Factors (RRFs)a Related to Semivolatile Compounds in the Nelson Database for GC/MSb

ParameterGC/MS
Total number of entries3076
Total number of entries with RRFs:2247
RRFs < 0.1:7%
Median RRF0.590 (0.628)c
Mean RRF0.645 (0.687)
Standard Deviation0.425 (0.407)
Minimum RRF<0.001
Maximum RRF4.611

  • ↵a The RRFs are calculated versus 2-flurobiphenyl as the internal standard.

  • ↵b Gas chromatography with mass spectrometric detection (GC/MS).

  • ↵c Values in parentheses correspond to the subset of the Database that includes “quantifiable” compounds with RRF values between 0.1 and 5.0.