US EPA Method 8260: GC Analysis of Volatiles on SPB®-624 after Purge & Trap using "K" Trap
CONDITIONS
sample/matrix
each analyte at 50 ppb in 5 mL water
purge trap
PURGE TRAP K, O.I. ANALYTICAL 4560 (24940-U)
purge
40 mL/min at 25 °C for 11 min
dry purge
2 min
desorption preheat
205 °C
desorption process
210 °C for 2 min, 31 mL/min
bake
260 °C for 10 min
transfer line/valve temp.
110 °C
column
SPB-624, 30 m x 0.25 mm I.D., 1.4 μm (24255)
oven
40 °C (2 min), 7 °C/min to 135 °C, 30 °C/min to 230 °C (3 min)
inj. temp.
150 °C
MSD interface
200 °C
scan range
m/z = 35-350
carrier gas
helium, 1.2 mL/min
injection
30:1 split
liner
0.75 mm I.D. SPME
Beschreibung
Rechtliche Hinweise
SPB is a registered trademark of Merck KGaA, Darmstadt, Germany