Phenole in Wasser

sample/matrix

50 ppb phenols in water, 27% NaCl, pH 2

SPME fiber

polyacrylate, 85 μm (57304)

extraction

20 min immersed in water with rapid stirring

desorption process

splitless, 280 °C (closed 3 min)

column

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

oven

40 °C (4 min), 12 °C/min to 260 °C

detector

MS, Scan Range m/z = 45-465 at 0.6 sec/scan

carrier gas

helium, 40 cm/sec at 40 °C