GC Analysis of Organophosphorus Pesticides (OP-Pest) on a 5% Phenyl Column after SPME using 100 μm PDMS Fiber

技术

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

试验参数

sample/matrix: 50 ppb each in 1.5 mL saturated salt water, pH 7.2
SPME fiber: polydimethylsiloxane, 100 μm (57300-U)
extraction: 20 min immersion with rapid stirring
column: 5% phenyl polysiloxane, 30 m × 0.25 mm I.D., 0.25 μm (Supelco equivalent, SLB-5ms, 28471-U)
oven: 60 °C (1 min) to 300 °C at 12 °C/min, hold 5 min
inj. temp.: splitless (0.75 mm I.D. liner), 270 °C
detector: MS (m/z = 45-400, 0.6sec/scan)
carrier gas: helium, 30 cm/sec

适用性

application for SPME

应用

environmental
food and beverages