卡尔曼滤波紫外光度法同时测定酱油、食醋中的山梨酸和苯甲酸  

Simultaneous Determination of Sorbic Acid and Benzoic Acid in Soy and Vinegar by Kalman Filtering UV Spectrophotometry

作　　者：屈元雨[1] 欧阳叙龙[1] 戴云信[1] 

机构地区：[1]邵阳高等专科学校,湖南省邵阳市422000

出　　处：《光谱实验室》2002年第2期186-188,共3页Chinese Journal of Spectroscopy Laboratory

摘　　要：在酸性条件下 ,采用乙酸乙酯萃取、Na2 HPO4溶液反萃取分离酱油、食醋中的山梨酸、苯甲酸 ,卡尔曼滤波法计算结果 ,并与比值导数波谱法进行比较。结果表明 ,卡尔曼滤波法较比值导数波谱法有较高的准确度和精密度 ,并能监测干扰物质存在与否。The benzoic acid and sorbic acid were re extracted with Na 2HPO 4 solution from the acetic ether,with which the soy and vinegar were extracted in acid solution.The UV spectrum of the Na 2HPO 4 solution was calculated with kalman filter method.The results of benzoic acid and sorbic acid are better than those obtained by derivative ratio spectrum method.The kalman filter method has a higher reliability and accuracy,and can detect the interference in real samples.

关 键 词：卡尔曼滤波 酱油 食醋 山梨酸 苯甲酸 多组分分析 防腐剂 同时测定 

分 类 号：TS264.21[轻工技术与工程—发酵工程] TS264.22[轻工技术与工程—食品科学与工程]