Dispersants in seawater on a ZB-Waxplus 30x0.25x0.25 by GCMS

GC Conditions

Column

Zebron ZB-WAXplus, GC Cap. Column 30 m x 0.25 mm x 0.25 µm, Ea

Part No

7HG-G013-11

Phase Name

ZB-WAXplus

Injection

Split 10:1 @ 250°C

Carrier Gas

Constant Flow Helium, 1.5 mL/min

Detection

Mass Selective (MSD) @ (250°C)

Detection Info

Sample Notes

Analytes are 1.7ppm in seawater Mass spectrometer is operated in SIM mode: Window 1 (87 (2-butoxyethanol), 89 (IS)), Window 2 (propyleneglycol and IS (31))

Sample Preparation Details

Condition 1

3 mL Methanol at 2 mL/min

Condition 2

3 mL Water at 2 mL/min

Load

Load 1.00 mL Sample diluted in Seawater

Dry

Dry for 5-10min at full vacuum

Elution 1

3 mL 2% Formic acid in methanol at 1 mL/min

Evaporation

Evaporate to dryness