气相色谱法测定酒中乙醇含量
China Food Safety Magazine(2022)
Abstract
本文建立了用正丙醇作内标测定葡萄酒、果酒及啤酒乙醇浓度的气相色谱方法.结果表明,乙醇浓度在0.10% ~2.00%,方法的线性关系良好,相关系数r大于0.9999,RSD在0.196%~0.648%,加标回收率在98.2%~100.0%,方法比对中t-检验的t值在0.60~1.52.该方法准确度高、精密度好,适用于葡萄酒、果酒及啤酒乙醇浓度的检测.
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