CARBOHYDRATES

CARBOHYDRATiS

Peaks: 1. 2. 3. 4. 5. 6.

Isomaltose Maltose Mattotriose Maltotetraose Maltopentaose Maltohexaose

Column: HPIC-AS6A

NOTE: Unlabelled peaks are unidentified carbohydrates.

I

I

I

I

I

0

5

10

15

20

Sugar

15

20

25

Inositol Sorbitol Fucose Deoxyribose Deoxyglucose Arabinose Rhamnose Galactose Glucose Xylose

30

35

Industry:

Food/beverage

Analytes:

Oligosaccharides

Current method:

HPLCwithRI detection

Problems:

Current method lacks sensitivity and specificity; gradients are not possible

Solution:

Dionex Ion Chromatography with new Pulsed Amperometric Detection

ppm 15 40 25 25 20 25 25 25 25 25

11. 12. 13. 14. 15. 16. 17. IS.

Mannose Fructose Melibiose Isomaltose Gentîobiose Cellobiose Turanose Maltose

25 25 25 25 25 25 50 50

For carbohydrate analysis, nothing compares to the sensitivity and selectivity of Dionex Ion Chromatography systems with the new PAD II detector. It is just one example of how Dionex metal-free chromatography systems and components are solving ionic and polar compound analysis problems. Others include: inorganic anions, metals, organic acids, amino acids, fatty acids, surfactants, sulfonates, antibiotics, and pesticides. If you're looking for a better solution, call us at (408) 737-0700. Chances are, we already have the answer.

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Fermented beverage

"*""" Ε 5

Oligosaccharides in beer. The oligosaccharides of interest in this sample were determined by gradient elution in just over 15 minutes using the Dionex Series 4000i with new PAD-II detector. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

Sample:

40

MINUTES

Carbohydrates by gradient elution.The new Dionex PAD-II provides sensitivity, specificity, and gradient com­ patibility. Dionex's new pellicular based ion-exchange resins provide superior selectivity.

DIONEX

A BETTER SOLUTION

Dionex Corporation, P.O. Box 3603, Sunnyvale, CA 94088-3603. (408) 737-0700 Canada Dionex Canada, Ltd., (416) 620-0077

England Dionex (UK) Ltd., (0252) 541346 CIRCLE

West Germany Dionex GmbH,06150-3047

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SERVICE

CARD

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