GC Analysis of Glycols in Water on SPB®-1000 after SPE using ENVI-Carb™ Plus
CONDITIONS
sample preparation
SPE (Solid Phase Extraction)
sample/matrix
tap water spiked at 2 μg/mL with glycols
SPE tube/cartridge
ENVI-Carb Plus reversible cartridge, 400 mg/ 1mL (54812-U)
condition
1 mL methylene chloride, 2 x 2 mL methanol, 3 mL deionized water (cartridge not allowed to dry during conditioning)
sample addition
5 mL spiked tap water
drying
10 min, 10 mm mercury
elution
2 mL 80:20 methanol:methylene chloride
column
SPB-1000, 30 m x 0.25 mm I.D., 0.25 μm (24313)
oven
50 °C (1 min), 8 °C/min to 200 °C (7 min)
inj. temp.
220 °C
detector
FID, 220 °C
carrier gas
helium, 1.5 mL/min. constant
injection
1 μL, splitless (splitter open at 0.75 min.)
liner
4 mm I.D. FocusLiner™ inlet liner with taper
Descripción
Legal Information
ENVI-Carb is a trademark of Sigma-Aldrich Co. LLC
FocusLiner is a trademark of SGE Analytical Science Pty Ltd.
SPB is a registered trademark of Merck KGaA, Darmstadt, Germany