GC Analysis of Triazine Herbicides on SLB^®-5ms after SPME using 60 μm Carbowax^® Fiber

技术

gas chromatography (GC): suitable
solid phase microextraction (SPME): suitable

试验参数

sample/matrix: Triazine herbicides at 2 ppb in 0.1M phosphate buffer, pH 7, with 25% NaCl, 9 mL in 10 mL screw cap vial
SPME fiber: 60 μM Carbowax (PEG) (57354-U)
extraction: 30 min direct immersion with agitation using CombiPal program
desorption process: 2 min at 250°C, splitless for 0.75 min then opened
column: SLB-5ms, 30 m x 0.25 mm I.D., 0.5μm film
oven: 60°C(1 min) to 150°C @ 25°C/min to 230°C @ 5°C/min (0.5 min)
inj. temp.: Splitless/split with 0.75mm ID liner and Merlin Microseal
detector: ITMS m/z=150-250 @ 0.5 μsec per scan, transfer line 310°C
carrier gas: Helium, 1mL/min constant flow

适用性

application for SPME

应用

agriculture
chemicals and industrial polymers
environmental
food and beverages