酱油中防腐剂山梨酸和苯甲酸的气相色谱快速分析方法

Express method of preservatives including sorbic acid and benzoic acid in soy were analysed by gas chromatogram

采用毛细管气相色谱外标法测定酱油中防腐剂苯甲酸和山梨酸,样品回收率均在97.4％-103.1％之间,标准线性关系良好,样品测定的相对标准偏差小,苯甲酸为0.53％,山梨酸为1.435％;本方法具有简便、快速、准确的特点。

Preservatives including sorbic acid and benzoic acid in soy were quantified by capillary column gas cchromatogram.The recovery fo added standards was 97.4%-103.1%.The Residual Standard Deviation were small; sorbic acid 1.435% and benzoic acid 0.53%.This method is simple,rapid and accurate.