采用液相色谱-同位素比质谱(LC-IRMS)技术建立了同时测定葡萄酒中甘油和乙醇δ13C值的分析方法.优化了葡萄酒中影响甘油和乙醇色谱分离的条件.方法的精密度和准确度分别为0.15‰～0.26‰和0.11‰～0.28‰.对40个葡萄酒样品进行了测定,甘油和乙醇的δ13C值分别为-26.87‰ ～-32.96‰、-24.06‰～-28.29‰,两者具有较强的相关性(R=0.82).该方法不需要复杂的样品预处理,在相同条件下同时测定甘油和乙醇的δ13C值,较传统方法简单、快速.
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