Simultaneous determination of carbohydrates and organic acids in beer and wine by ion chromatography |
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| Authors: | Zhu Yan Zhang Xingde Niu Weijun |
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| Affiliation: | (1) Department of Chemistry, Hangzhou University, 310028 Hangzhou, Peoples Republic of China;(2) Department of Chemistry, Zhejiang University, 310027 Hangzhou, Peoples Republic of China |
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| Abstract: | The simultaneous determination of mono-organic acids and carbohydrates by ion chromatography with both conductometric and pulsed amperometric detection is described. The carbohydrates, such as mannitol, arabinose, glucose, fructose, lactose, sucrose, raffinose, and maltose, as well as monoorganic acids including acetate, glycolate, formate, pyruvate, and fluoride are separated as anions by ion-exchange chromatography with 0.080 mol/L sodium hydroxide eluent at 1 mL/min within 12 min. Carbohydrates are determined by pulsed amperometric detection and mono-organic acids are determined by suppressed conductivity detection. The species in beverages are determined. |
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| Keywords: | ion chromatography carbohydrates organic acids beer wine pulsed amperometric detection |
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