采用智能电位滴定测定烘炒食品中的过氧化值。样品粉碎过筛，溶剂浸泡、挥发后，油脂采用智能电位滴定仪测定其中的过氧化值含量。分析了烘炒食品前处理的影响因素，及仪器的最佳分析条件。结果表明，根据样品类别，称重1~5 g，采用石油醚Ⅰ为溶剂，智能电位滴定仪滴定，铂电极，样品采取动态电位滴定，空白采用等体积滴定。实验快速、结果准确、是一种方便快速高效的仪器检验方法。

The peroxide number of some baking foods was studied. The 1~5 g of the shattered and sifted sample was dipped in mineral ether I. Then its peroxide number was detected via dynamic potentiometric titration by intelligent potentiometric titrimeter with a platinum pole. The best analysis conditions were investigated. Results showed that the method was fast, convenient and accurate, which was suitable for the detection of peroxide number of baking foods with large amounts.