气相色谱测定固态酿造基质中四甲基吡嗪的前处理方法优化

Sichuan Food and Fermentation（2021）

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Abstract

对气相色谱测定固态酿造基质中四甲基吡嗪的前处理方法进行了优化,水溶液浸提pH为5,液液萃取的萃取剂为乙酸乙酯,萃取时间为15min.高温大曲和堆积糟醅中四甲基吡嗪测定的精密度分别为2.71％和9.59％,加标回收率分别在84.64％～93.11％和83.33％～101.04％.

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