食品科学2011，Vol.32Issue(18)：304-307,4.
基于电导率的地沟油快速定性与半定量分析
Fast Qualitative and Semi-quantitative Analysis of Hogwash Oil by Conductivity
摘要
Abstract
Fast qualitative and semi-quantitative detection methods to distinguish hogwash oil in edible oil were developed by measuring conductivity.The effects of oil type,temperature,oscillation time,and oil/water ratio on conductivity were explored to establish optimal detection conditions.Through determining the conductivity of all kinds of hogwash oil and edible oil,a quantitative adulteration model of hogwash oil in edible oil was established and validated.The results indicated that the conductivities of crude hogwash oil,refined hogwash oil and edible oil in water phase were determined to be 30.15-130.80,22.37-44.61μS/cm and 3.18-9.18μS/cm,respectively,under the conditions： room temperature,oscillation time of 30 s,oil/water ratio of 1：4（g/mL） and phase separation time 10 min.When the conductivity of an edible oil sample was higher than 10μS/cm,the adulteration of this edible oil could be concluded and the semi-quantitative analysis can be completed by the established model.关键词
地沟油/电导率/定性和半定量分析Key words
hogwash oil/conductivity/qualitative and semi-quantitative analysis分类
轻工纺织引用本文复制引用
王飞艳,于修烛,吕曼曼,李亚品,韩凌霜..基于电导率的地沟油快速定性与半定量分析[J].食品科学,2011,32(18):304-307,4.基金项目
中央高校基本科研业务费专项 （）
西北农林科技大学大学生科技创新项目 （）
