Luminol-KIO_4 chemiluminescence system determination of Sudan I in food
Based on the enhancive effect Sudan Ⅰ on the of chemiluminescence reaction luminol-KIO4 system with staticstate injection was proposed for determination of sudan Ⅰ. The increment of the Chemiluminescence intensity was proportional to the concentration of sudan Ⅰ. The linear range of was 0.005~0.20 μg/m L. The detection limit was 0.0017 μg/m L. The recovery rate reached 93.6%~107.3% with relative standard deviations was 2.3%~5.9%. This method is with good accuracy and precision and can be used to detect the content of Sudan Ⅰ in food.