GC Analysis of Phenols on SLB^®-5ms after SPME using 60 μm Carbowax^® Fiber

Phenols at 25 ppb in 0.1M phosphate buffer, pH 2, with 25% NaCl, 9 mL in 10 mL screw cap vial

60 μm Carbowax (PEG) (57354-U)

30 min direct immersion with agitation using CombiPal autosampler

(30 min. direct immersion with agitation using CombiPal autosampler)

SLB-5ms, 30 m x 0.25 mm I.D., 0.5μm film

50°C(2.0 min) to 160°C @ 10°C/min to 280°C @ 20°C/min

Splitless/split with 0.75mm ID liner and Merlin Microseal

ITMS m/z=45-275 @ 0.7 μsec per scan, transfer line 310°C

Helium, 1mL/min constant flow, 8.7 psi

Carbowax is a registered trademark of Union Carbide, SLB is a registered trademark of Merck KGaA, Darmstadt, Germany