parabens, each at 200 ppb in 3 mL water + 25% sodium chloride in a 4 mL vial
metal fiber assembly coated with 50/30 μm DVB/Carboxen/PDMS (57912-U)
immersion with stirring, 25 °C (15 min)
260 °C, 2 min
SLB-5ms, 20 m × 0.18 mm I.D., 0.36 μm (28576-U)
60 °C (2 min), 15 °C/min to 300 °C (5 min)
275 °C
m/z 40-450
helium, 0.7 mL/min constant
0.75 mm I.D. SPME
SLB is a registered trademark of Merck KGaA, Darmstadt, Germany