US EPA Method 8270 semivolatile compounds

column

Equity-5, 30 m × 0.25 mm I.D., 0.5 μm (28092-U)

oven

40 °C (2 min), 50 °C/min to 100 °C, 10 °C/min to 200 °C, 30 °C/min to 325 °C (7.5 min)

inj. temp.

280 °C, splitless (0.61 min)

detector

MSD, Scan range 45-450 amu, 325°C

carrier gas

helium, pressure programmed, 20 psi (0.0 min), ramp to 80 psi (0.0 min), ramp to 16.5 psi (3 min), ramp to 25 psi (hold for remainder of run)

injection

1 μL, splitless (0.61 min)

liner

4 mm I.D., single taper

sample

50 ng on-column of a 62 Supplemental Appendix IX list consisting of semivolatile standards, 6 internal standards, and 8 surrogates