US EPA Method 502.2: GC Analysis of Volatiles on VOCOL^® (105 m x 0.53 mm I.D.) after Purge & Trap using "K" Trap, PID Signal

sample/matrix

5 mL water (5 ppb each analyte)

purge trap

VOCARB 3000 (21131-U)

desorption process

220 °C for 0.5 min

purge

37 mL/min for 11 min at 25 °C

column

VOCOL^®
, 105 m × 0.53 mm I.D., 3.0 μm (25358)

oven

35 °C (10 min), 4 °C/min to 200 °C

detector

ELCD/PID in series

carrier gas

helium, 10 mL/min (plus 20 mL/min as make-up gas)