Standard Methods 6040D: GC Analysis of Geosmin and 2-MIB on SLB^®-5ms after SPME using 50/30 µm DVB/Carboxen/PDMS Fiber

Conditions

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

Description

Categories	Analytical Chromatography, SPME Applications, GC Applications, Volatiles
Featured Industry	Environmental Food and Beverages
Legal Information	SLB is a registered trademark of Sigma-Aldrich Co. LLC
Other Notes	Complementary products: Syringes Vials Gas Purification and Gas Management Inlet Liners, Glass Wool, and Specialized Hand Tools Septa and Specialized Hand Tools Column Ferrules, Nuts, and Specialized Hand Tools
suitability	application for SPME, application for GC

Analyte

• (±)-Geosmin
• 2-Isobutyl-3-methoxypyrazine
• 2-Isopropyl-3-methoxypyrazine
• 2-Methylisoborneol