GC Analysis of Water in Ethanol (0.25% Standard) on Watercol^™ 1910

Watercol 1910, 30 m x 0.25 mm I.D., 0.20 μm (29711-U)

45 °C (4 min), 5 °C/min to 75 °C, 10 °C/min to 190 °C

250 °C

FID, 250 °C; TCD, 200 °C

helium, 20 cm/sec (measured in each column at an oven temperature of 135 °C)

1 μL, 50:1 split

4 mm I.D., split/splitless type, wool packed single taper FocusLiner^™ design

water at 0.25% (v/v) in ethanol

The "Watercol" series of ionic liquid capillary GC columns are characterized by their ability to produce a sharp peak shape for water, sharp enough so that water can be integrated and quantified. This application shows a calibration standard (0.25% water in ethanol) on Watercol 1910.

Two identical columns were installed in separate inlets, each going to a separate detector.

FocusLiner is a trademark of SGE Analytical Science Pty Ltd., Watercol is a trademark of Sigma-Aldrich Co. LLC