PAHs in water

sample preparation

SPE (Solid Phase Extraction)

sample/matrix

water spiked with PAHs

SPE tube/cartridge

Supelclean ENVI-18, 500 mg/6 mL (57064)

condition

2 x 6 mL toluene:methanol (10:1); 6 mL methanol; 6 mL DI water

sample addition

250 mL water sample at 10 mL/min

drying

10 min under vacuum

elution

2 x 1 mL toluene:methanol (10:1)

column

5% phenyl polysiloxane, 30m × 0.25 mm I.D., 0.25 μm film (Supelco equivalent, SLB-5ms, 28471-U)

oven

70 °C (2 min) to 280 °C at 8 °C/min

detector

FID, 310 °C

carrier gas

helium

injection

1 μL