TN72225: Glycoprotein Monosaccharide Analysis using HPAE-PAD with Manually Prepared Eluent

Instrument Type: IC

This work describes an HPAE-PAD method for monosaccharide composition analysis using manually prepared eluent. Monosaccharide analysis using electrolytically generated eluent has been described before. Here, three commercially available proteins, IgG, fetuin, and alpha-1-acid glycoprotein, were individually subjected to two hydrolysis conditions using 1)HCl, for the amino sugars galactosamine and glucosamine, and 2)TFA, for the neutral sugars mannose, glucose, and galactose. Results for method linearity, robustness, and accuracy are presented here. An ICS-6000 can be used for this application.

TN53: Determination of Glycoprotein Monosaccharide Composition by HPAE-PAD Using On-Line Electrolytically Generated Eluents

Instrument Type: IC

This is the first document showing the use of eluent generation for HPAE-PAD monosaccharide analysis of glycoproteins. Those interested in an updated version should see TN40. This record is provided for those with an EG40 and a Dionex CarboPac PA10 column that would like to do this application. This document also has useful sample preparation information for HPAE-PAD glycorprotein monosaccharide analysis.

TN40: Glycoprotein Monosaccharide Analysis Using HPAE-PAD with Eluent Generation

Instrument Type: IC

Characterization of glycoproteins routinely involves carbohydrate analysis. Studies show that HPAE-PAD is a simple and effective way to determine glycoprotein monosaccharide composition without derivatization. In a typical method, monosaccharides are separated on a Thermo Scientific Dionex CarboPac PA10 or PA20 anion-exchange column, preceded by a Thermo Scientific Dionex AminoTrap guard column, using a hydroxide eluent prepared manually or generated by an eluent generator. This TN reports such a method.