GC Analysis of Semivolatiles in Water on a 5% Phenyl Column after SPME using 7 μm PDMS
Materiais
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Conjunto de fibras para microextração em fase sólida (SPME) de polidimetilsiloxano (PDMS)
df 7 μm(PDMS, needle size 24 ga, for use with manual holderCONDITIONS
sample/matrix
water spiked with PAHs and phthalates at 50 ppb
SPME fiber
polydimethylsiloxane, 7 μm (57302)
extraction
direct immersion in water, 15 min (rapid stirring)
column
5% Phenyl Polysiloxane, 30 m × 0.25 mm I.D., 0.25 μm (Supelco equivalent, SLB-5ms, 28471-U)
oven
60 °C (3 min), 10 °C/min to 320 °C
inj. temp.
280 °C
detector
MS, scan range m/z = 45-465 at 0.6 sec/scan
carrier gas
helium, 40 cm/sec at 60 °C