SPE (Solid Phase Extraction)
water spiked with phenol compounds
Supelclean ENVI-Chrom P, 250 mg/6 mL (57225-U)
6 mL methyl t-butyl or ethyl acetate; 6 mL acetonitrile. Equilibrate with 6 mL DI water
100 mL water sample.
10 min using vacuum
5 mL methyl t-butyl ether acetate dropwise allowing initial 2 mL to soak in SPE bed
5% Phenyl Polysiloxane, 15 m × 0.53 mm I.D., 0.50 μm (Supelco equivalent, Equity-5, 28252-U)
65 °C, 10 °C/min to 185 °C (1 min), 20 °C/min to 275 °C (5 min)
FID, 300 °C
helium
1 μL, splitless (45 sec hold)
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