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Simplified and Cost-Effective New Approach to Carbohydrate Determination

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With the recommendations described in Technical Note 110: Carbohydrate Determination by HPAE-PAD with Disposable Au on PTFE Working Electrodes, these electrodes provide consistent performance for four weeks with <15% loss in response for the applications evaluated and excellent electrode-to-electrode response consistency. Furthermore, these electrodes offer convenience with simple installation and no need for electrode polishing.

Many samples, ranging from food, biological products, biofuel feedstocks, and fermentation media, are analyzed for carbohydrate content. As with the sample matrix, determination methods can vary widely, with analyte detection frequently being a challenge. This new approach uses high-performance anion-exchange (HPAE) chromatography with pulsed amperometric detection (PAD) to overcome issue related to interference and sensitivity and to minimize labor and reagent costs.