Isomaltose Maltose Maltotnose Maltotetraose Maltopentaose Maltohexaose Column: HPIC-AS6A
NOTE: Untabelled peaks are unidentified carbohydrates.
V\J
Fermented beverage
Industry:
Food/beverage
Analytes:
Oligosaccharides HPLC with Rl detection
Current method: 20 Minutes
10
Oligosaccharides in beer. T h e oligosaccharides of interest in this sample were d e t e r m i n e d by gradient elution in j u s t over 15 m i n u t e s using a Dionex Series 4000i with new PAD-II Detector. Sugar 1. 2. 3. 4. 5. 6. 7.
Inositol Sorbitol Fucose Deoxyribose Deoxyglucose Arabinose Rhamnose Galactose 9. Glucose 10. Xylose
5
Sample:
10
15
20
25
30
35
.RED] 15 40 25 25 20 25 25 25 25 25
11. Mannose 12. Fructose 13 Meiibiose 14. Isomaltose 15, Gentiobiose 16.Cellobiose 17.Turanose 18 Maitose
25 25 25 25 25 25 50 50
Problems:
Current method lacks sensitivity and specificity; gradients are not possible
Solution:
Dionex Ion Chromatography with new Pulsed Amperometric Detection
Carbohydrate analysis is just o n e example of how ionic a n d polar c o m p o u n d determinations can b e improved using Dionex metal-free gradient chromatography systems and components. Others include: inorganic anions, metals,organic acids, amino acids, fatty acids, surfactants, sulfonates, antibiotics, a n d pesticides. If you're looking for a better solution, call us at (408) 737-0700. Chances are, we already have the answer.
40 M i n u t e s
Carbohydrates by gradient elution. T h e new Dionex PAD-II Detector provides sensitivity, specificity a n d gradient compatibility. Dionex's new pellicular based i o n - e x c h a n g e resins provide s u p e r i o r selectivity.
DIONEX
A BETTER SOLUTION
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