GC Analysis of Volatiles on SPB^®-624 after Purge & Trap using "K" Trap

sample/matrix

50 ppb each component in 5mL of water

purge trap

VOCARB 3000

purge

40 mL/min for 11 min at ambient temperature

desorption temp.

210 °C for 2 min

bake

260 °C for 10 min

transfer line/valve temp.

110 °C

column

SPB-624, 60 m x 0.32 mm ID, 1.8 μm (24251)

oven

35 °C (8 min), 5 °C/min to 100 °C, 15 °C/min to 220 °C (5 min)

inj. temp.

230 °C

scan range

m/z 41-400

carrier gas

helium, 1.2 mL/min constant

injection

split ~18:1

instrument

OI 4560