Study on electro-analysis method research of Sudan

For getting a fast,easily way in examining Sudan in food,this article has discussed in determination food Sudan polarography the law,in the acetone medium,Sudan Ⅰ has the keen polarogram catalysis wave in electric potential Ep-0.860V.Assume the good linear relation in the 0.2~5.0μg·(10mL)-1.scope and the wave height.Return line equation y = 15.949x+1.8861 correlation coefficients is 0.9983 lowly picks out limits is 0.05μg·(10mL)-1.This method operation simple and direct,keen,fast,suitable for the hot pepper product,the hot pot soup anticipates food and so on in ketchup Sudan Ⅰ determination[1].