GC Analysis of Organophosphorus Pesticides (OP-Pest) 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: Organophosphate pesticides at 10ppb in 0.2M phasphate buffer, pH 7, with 25% NaCl, 9mL in 10 mL vial
SPME fiber: 60 μm Carbowax(PEG) (57354-U)
extraction: 30 min. direct immersion with agitation using CombiPal autosampler
desorption process: 2 min at 250°C, splitless for 0.75 min then opened
column: SLB-5ms 30 m x 0.25mm I.D., 0.5 μm film
oven: 60°C(1 min) to 215°C @ 20°C/min to 290°C @ 6°C/min (1 min)
inj. temp.: Splitless/split with 0.75mm ID liner and Merlin Microseal
detector: ITMS m/z=50-326 @ 0.6 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