Analysis of a Sports Beverage for Electrolytes and Sugars Using Multi-Mode Chromatography with Charged Aerosol Detection

Importance of the Topic

Sports beverages are formulated to restore electrolytes and carbohydrates lost during intense exercise. Accurate measurement of these components is vital for quality control, regulatory compliance, and consumer confidence.

Objectives and Overview

This study aims to demonstrate a unified HPLC approach for simultaneous analysis of electrolytes and sugars in a sports drink using a single column and detector, streamlining traditional multi-technique workflows.

Methodology

Sample clean-up employed OnGuard II P cartridges to remove particulates and color agents. Electrolyte separation used a salt-gradient elution on the Acclaim Trinity P2 column at pH 3.65. Sugar analysis was carried out under isocratic HILIC conditions (80% acetonitrile) at elevated temperature to prevent anomeric peak splitting.

Used Instrumentation

• Thermo Scientific Dionex UltiMate 3000 HPLC system
• Acclaim Trinity P2 column (50 × 3 mm, 3 µm)
• Corona Veo charged aerosol detector
• OnGuard II P cartridge for sample preparation

Main Results and Discussion

Baseline resolution was achieved for twelve common ions including mono- and divalent electrolytes. All labeled electrolytes were identified, with an unexpected sulfate peak observed. Under HILIC conditions, the method separated fructose, glucose, and maltose, overcoming anomeric separation by operating at 60 °C.

Benefits and Practical Applications

The combined method reduces instrument requirements by replacing multiple columns and detectors with a single system, simplifies sample preparation, and supports robust quality control in beverage production.

Future Trends and Applications

Emerging developments may include coupling multi-mode chromatography with mass spectrometry, expanding to other complex matrices, automating workflows, and adopting eco-friendly solvents to further enhance analytical efficiency.

Conclusion

The integrated HPLC-CAD approach using the Acclaim Trinity P2 column delivers effective, streamlined analysis of key sports beverage components, offering a versatile tool for industrial and research laboratories.