Aminex® Carbohydrate Analysis Columns

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Overview

Column Life Span Studies
Column lifetime studies performed on the Aminex® HPX-87H column. After one injection (A) and 200 injections (B). Peak number 1) oxalicacid, 2) citric acid, 3) tartaric acid, 4) malic acid, 5) succinic acid, 6) formicacid, 7) acetic acid.
Carbohydrate Analysis Comparison
Comparison of carbohydrate analysis without (A) and with (B) an in-line deashing system.
Aminex® HPLC Columns Selection Guide

Selection guide for Aminex carbohydrate, organic acid, and alcohol analysis columns.

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Aminex HPLC columns are packed with a polymer-based matrix (polystyrene divinylbenzene). They separate compounds using the ion-moderated partition chromatography technique. Aminex carbohydrate analysis columns separate compounds using a combination of size exclusion and ligand exchange mechanisms:

  • In oligosaccharide separations, size exclusion is the primary mechanism. Low crosslinked resins allow carbohydrates to penetrate, and oligosaccharides separate by size
  • For monosaccharide separations, ligand exchange is the primary mechanism and involves the binding of hydroxyl groups of the sugars with the fixed counterion of the resin. Ligand exchange is affected by the nature of the counterion (Pb2+, Ca2+, etc.) and by the spatial orientation of the carbohydrate's hydroxyl groups

Aminex columns allow the use of simple isocratic methods, eluting with water or dilute acid. There is minimal sample preparation, usually just filtering through a 0.45 µm filter with no derivatization necessary. Aminex media have a high pressure stability, wide pH stability, and high column efficiency and selectivity.

Aminex columns are an industry standard for the analysis of carbohydrates. Bio-Rad offers a complete line of carbohydrate analysis columns optimized to provide high selectivity for a specific carbohydrate or carbohydrate class. Research length (300 mm) columns provide high-resolution separations of complex carbohydrate mixtures in approximately 20 minutes, while the shorter columns provide efficient separations of specific carbohydrates in 3–5 minutes. Use our selection guide to choose the column that fits your application needs.

Aminex HPX-87C Column
This calcium-form column is the column of choice for most general sweetener analyses. It is optimized for analyzing monosaccharides and also provides class separation of di-, tri-, and tetrasaccharides. The 300 x 7.8 mm column is used primarily for the quantitation of glucose and fructose in high fructose corn syrup and for general monosaccharide analysis. The 250 x 4.0 mm column is appropriate for sugar alcohol separations.

Aminex HPX-87P Column
This lead-form, 300 x 7.8 mm column is tailored for the separation of cellulose-derived monosaccharides. It is used in analyses of pentoses and hexoses in wood products, especially cellobiose, glucose, xylose, galactose, arabinose, and mannose. It also provides excellent resolution of sucrose, lactose, and fructose in dairy products.

Fast Carbohydrate Analysis Column
This lead-form, 100 x 7.8 mm column is tailored for extremely fast separations of specific carbohydrates in samples where only certain components are of interest. It is optimized for 5-minute analyses of sucrose, glucose, galactose, and fructose.

Aminex HPX-87H Column
This hydrogen-form, 300 x 7.8 mm column is used for analysis of carbohydrates in solution with carboxylic acids, volatile fatty acids, short chain fatty acids, alcohols, ketones, and many neutral metabolic by-products. Most often used for organic acid analysis, this column is also useful for fermentation monitoring, biological fluid analysis, and acetylated amino sugar separations.

Aminex HPX-87N Column
This sodium-form, 300 x 7.8 mm column is optimized for the analysis of sugars in samples with high salt concentrations, such as beet sugars. It is compatible with salts, so there is no need to desalt samples before analysis.

Aminex HPX-87K Column
This potassium-form, 300 x 7.8 mm column is optimized for the analysis of mono-, di-, and trisaccharides in samples such as corn syrup and brewing wort. It exhibits good separations of glucose, maltose, and maltotriose.

Aminex HPX-42A Column
This silver-form, 300 x 7.8 mm column provides fast, high-resolution oligosaccharide analysis. It separates oligosaccharides to D-11 in approximately 25 minutes.

Aminex HPX-42C Column
This calcium-form, 300 x 7.8 mm column is optimized for analysis of mono- and disaccharides in starch hydrolysates. It also provides excellent resolution of oligosaccharides as large as D-10.

In-Line Carbohydrate Deashing System
This in-line deashing system protects the Aminex carbohydrate columns from contamination by removing all inorganic salts from the sample, allowing only neutral carbohydrates to pass to the analytical column. The system consists of two Micro-Guard cartridges, one packed with anion and the other with cation exchange resin. Installed in series in front of Bio-Rad analytical columns, this system offers convenient and highly efficient in-line purification of sugar samples.

Aminex HPX-87N Column

125-0143
Pkg of 1, 300 x 7.8 mm, prepacked HPLC carbohydrate analysis column, sodium form, 9 µm particle size, 8% cross linkage, pH range 5–9

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Aminex HPX-87K Column

125-0142
Pkg of 1, 300 x 7.8 mm, prepacked HPLC carbohydrate analysis column, potassium form, 9 µm particle size, 8% cross linkage, pH range 5–9

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Aminex HPX-87C Column

125-0095
Pkg of 1, 300 x 7.8 mm, prepacked HPLC carbohydrate analysis column, calcium form, 9 µm particle size, 8% cross linkage, pH range 5–9

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Aminex HPX-87C Column

125-0094
Pkg of 1, 250 x 4.0 mm, prepacked HPLC carbohydrate analysis column, calcium form, 9 µm particle size, 8% cross linkage, pH range 5–9

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Aminex HPX-87P Column

125-0098
Pkg of 1, 300 x 7.8 mm, prepacked HPLC carbohydrate analysis column, hydrogen form, 9 µm particle size, 8% cross linkage, pH range 5–9

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Aminex HPX-87H Column

125-0140
Pkg of 1, 300 x 7.8 mm, prepacked HPLC carbohydrate analysis column, hydrogen form, 9 µm particle size, 8% cross linkage, pH range 1–3

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Aminex HPX-42C Column

125-0096
Pkg of 1, 300 x 7.8 mm, prepacked HPLC carbohydrate analysis column, calcium form, 25 µm particle size, 4% cross linkage, pH range 5–9

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Aminex HPX-42A Column

125-0097
Pkg of 1, 300 x 7.8 mm, prepacked HPLC carbohydrate analysis column, silver form, 25 µm particle size, 4% cross linkage, pH range 6–8

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Fast Carbohydrate Column

125-0105
Pkg of 1, 100 x 7.8 mm, prepacked HPLC carbohydrate analysis column, lead form, 9 µm particle size, 8% cross linkage, pH range 5–9

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Carbohydrate Analysis Kit

125-0233
Application kit for food analysis, calcium form, 9 μm particle size, 8% cross linkage, pH range 5–9, includes guard column

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Number Description Options
6498 Lab-Scale Protein Purification – Column and Cartridge Selection Guide, Rev C Click to download [ Add to Cart (Free) ]
6333 Aminex HPLC Columns Selection Guide, Interactive PDF, Rev A Click to download
M1250131 Instruction Manual, Standard Cartridge Holder and Deashing Holder, Rev B Click to download
M1250147 Instruction Manual, Seal Replacement Instructions for Micro-Guard Cartridges, Rev B Click to download
LIT15 Instruction Manual, Micro-Guard Cartridges, Rev D Click to download
1189 Micro-Guard HPLC Guard Column Product Information Sheet, Rev A Click to download
LIT42 Instruction Manual, Aminex Resin-Based Columns, Rev D Click to download [ Add to Cart (Free) ]
1895 Bibliography of Aminex HPLC Column References, Rev A Click to download
1928 Overview and Strategies for Bio-Organic Molecule Purification, Rev B Click to download