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首页> 外文期刊>Journal of AOAC International >Determination of total carbohydrates in wine and wine-like beverages by HPLC with a refractive index detector: first action 2013.12.
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Determination of total carbohydrates in wine and wine-like beverages by HPLC with a refractive index detector: first action 2013.12.

机译：HPLC和折光率检测器测定葡萄酒和类葡萄酒中的总碳水化合物：初审2013.12。

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An international collaborative study was conducted of an HPLC-refractive index (RI) detector method for the determination of the combined amounts of sugars, glycerol, organic acids, and phenolic compounds in wines and wine-like beverages. Nine collaborating laboratories representing major winery, contract laboratories, and government laboratories tested eight different materials as blind duplicates using the proposed method. Sample materials included red and white wines, port, wine cooler, and nonalcoholic wine. One material was a negative control, and one material was a reference material. Samples were either treated with an ion-exchange resin to remove interfering organic acids prior to analysis or left untreated to include organic acids and phenolics. Red wine samples were treated with polyvinylpolypyrrolidone to remove potential interferences from phenolics prior to analysis. The HPLC analyses were performed on a Bio-Rad Fast Acid Analysis Column using RI detection. Reproducibility (RSDR) for untreated samples (sugars+phenolics+organic acids) ranged from 6.6% for Titrivin AA4 reference material to 11.0% for dry red wine. RSDR for treated samples (sugars only) ranged from 6.8% for white zinfandel to 18.9% for dry white wine. RSDR for treated samples (sugars only)+glycerol ranged from 6.4% for white zinfandel to 19.8% for dry red wine. Based on these results, the method was adopted as Official First Action status for determination of total carbohydrates in wine and wine-like beverages.
机译：HPLC折光率（RI）检测器方法的国际合作研究用于测定葡萄酒和类葡萄酒中糖，甘油，有机酸和酚类化合物的总量。代表主要酿酒厂的9个合作实验室，合同实验室和政府实验室使用建议的方法测试了八种不同材料的盲目重复。样品材料包括红葡萄酒和白葡萄酒，波特酒，葡萄酒柜和非酒精葡萄酒。一种材料是阴性对照，一种材料是参考材料。在分析之前，样品用离子交换树脂处理以去除干扰有机酸，或者不进行处理以包括有机酸和酚类。在分析之前，用聚乙烯基聚吡咯烷酮对红酒样品进行处理，以消除酚类化合物的潜在干扰。 HPLC分析是使用RI检测在Bio-Rad快速酸分析柱上进行的。未经处理的样品（糖+酚类+有机酸）的重现性（RSD R ）范围从Titrivin AA4参考材料的6.6％到干红葡萄酒的11.0％。处理过的样品（仅含糖）的RSD R 范围从白金粉黛的6.8％到干白葡萄酒的18.9％。处理过的样品（仅糖）+甘油的RSD R 范围从白色仙粉黛的6.4％到干红葡萄酒的19.8％。根据这些结果，该方法被用作官方初审状态，用于测定葡萄酒和类葡萄酒中的总碳水化合物。

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