Standard Methods 6040D: GC Analysis of Geosmin and 2-MIB on SLB^®-5ms 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

SPME fiber: 2 cm Metal coated with 50/30 μm DVB/Carboxen/PDMS (57914-U)
extraction: headspace, 65 °C (30 min)
desorption process: 260 °C for 3 min.
column: SLB-5ms, 30 m x 0.25 mm I.D., 0.25 μm (28471-U)
oven: 60 °C (2 min), 8 °C/min to 200 °C
MSD interface: 300 °C
scan range: SIM, m/z = 137, 124, 95, 112
carrier gas: helium, 1 mL/min constant
liner: 0.75 mm I.D., SPME
sample: 20/10 ppt odor compounds in 25 mL water + 25% NaCl

适用性

application for SPME

应用

environmental
food and beverages