beautypg.com

Care and use manual – Waters Glyco-Pak N Columns User Manual

Page 3

background image

[ Care and Use ManUal ]

Glyco-Pak N Columns

3

a. Mode of Action

The Glyco-Pak N column operates in a liquid/liquid partition mode. In this
mode, retention tunes and resolution are very sensitive to small changes in
the composition of the mobile phase. To insure retention time reproducibility,
mobile phase should be prepared by weight or in sufficiently large batches to
insure consistency.

Conditions
Sample:

Endo H released high mannose oligosaccharides

Mobile Phase:

Acetonitrile/water (70:30)

Flow Rate:

1 ml/min

Detection:

197 nm

Figure 2: Endo H Released High Mannose Oligosaccharides

Conditions
Sample:

Mixed oligosaccharide standards

Mobile Phase:

Acetonitrile/water (d8:32)

Flow rate:

l ml/min

Detection:

200 nwm

Figure 3: Mixed Hydrazine Released Oligosaccharide Standards

(See Figure 4 for structures.)

Figure 4: Neutral Oligosaccharide Structures*

*Separation of Reducing Oligosaccharides Derived from Glycoproteins by HPLC
on a Polymeric Support, Bendiak, B.; On, J.; Brockhausen, I.; Vella, G.; Phoebe,
C.; in press.