示波极谱法在食品合成食用色素测定中的应用

目的探讨示波极谱法对食品合成食用色素测定的应用效果。方法采用示波极谱法测定了常见的苋菜红、胭脂红、日落黄、柠檬黄和亮蓝5种合成食用色素的最低检出量和检出浓度、标准曲线线性范围、加标回收率。结果5种食用色素的回收率在88.6%～101.3%之间;结合样品进行示波极谱法与高效液相色谱法(HPLC)两种测定方法的对比实验。通过F检验与t检验,验证了示波极谱法和HPLC法两种测定结果的差异无统计学意义。结论示波极谱法测定食品中合成食用色素,灵敏度高、精密度好、操作简便快速,适合在基层疾控检测工作中普及应用。

Application of Oscillopolarography in Synthetic Food Colorants Determination

Objective To investigate the oscillopolarography synthetic food colorants on the determination of the application.Method Oscillopolarography common vegetables red,carmine,sunset yellow,lemon yellow and bright yellow synthesis of five kinds of food coloring agent,a minimum concentration of detection and detection,the standard curve linear range,plus recovery experiment.Results Five kinds of components measured in the recovery rate between 88.6%-101.3%;combination oscillopolarography samples with high-perform...