GC Analysis of Trace Odors in Drinking Water on Equity-5 after SPME using 50/30 μm DVB/Carboxen/PDMS Fiber

技术

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

试验参数

sample/matrix: 25 mL of water containing 25% NaCl and drinking water odors kit (47529-U)
SPME fiber: 2 cm StableFlex coated with 50/30 μm DVB/Carboxen/PDMS (57348-U)
extraction: headspace, 65 °C (30 min)
desorption process: 3 min at 260 °C
column: Equity-5, 30 m × 0.25 mm, 0.25 μm (28089-U)
oven: 60 °C (2 min) to 200 °C at 8 °C/min
flow rate: helium, 37 cm/sec @ 60 °C (1 mL/min constant flow)
inj. temp.: SPME fiber, splitless opened at after 1 min at 50 mL/min
detector: MS, selected ions (SIM) 95, 112, 124, 137, 197; interface at 280 °C
liner: 0.75 mm SPME liner

适用性

application for SPME

应用

environmental
food and beverages