摘要
食品加工中常常需加入防腐剂和甜味剂，由于其中某些组分的结构和性质十分相似，它们共存时分离和测定均较为困难。采用化学计量学手段———模糊线性规划法对苯甲酸、山梨酸、对羟基苯甲酸乙酯和糖精四组分混合物进行同时测定。该方法不仅能有效地消除组分间的相互干扰，而且还可根据量测数据中信噪比的大小选择适当的参数。对数据中含带的噪声进行有效、彻底的清除，解决了常规线性规划中只能处理理想数据的缺点。
Preservatives are generally used in food products to prevent them from corruption.However,it is differcult to determine the content of each component of preservatives in mixtures,because the spectral peaks of them are seriously overlapped.In this work,a chemometric approach,fuzzy linear program was developped and applied to the analysis of mixtures of preservatives,such as benzoic acid,sorbic acid,parahydroxybenzoate ethyl and saccharin in food samples with satisfactory results.
出处
《南昌大学学报（理科版）》
CAS
1999年第4期295-301,共7页
Journal of Nanchang University(Natural Science)
基金
国家自然科学基金
江西省自然科学基金
关键词
防腐剂
测定
化学成分
模糊线性规划法
光度法
preservatives,saccharin,chemometrics,fuzzy linear programming,spectrophotometry
