1.Institute of Agricultural Product Quality Safety and Standards Jiangxi; 2.Academy of Agricultural Sciences,The Centre of Inspection and Testing for Meat and Meat-products,Ministry of Agriculture,Nanchang Jiangxi,China
Abstract:Object:To determinate the concentration ofα-tocopherol in the goose using HPLC with DAD. Methods:Goose was added in anhydrous alcohol,potassium hydroxide and vitamin C.The mixture was shaken and saponified at 100℃for 30 minutes,following extracted by ether and dried by evaporation, dissolved in ethanolgrain alcohol,and analyzed by HPLC-DAD,α-tocopherol was separated on SunFire TmC18,15 cm×4.6 mm,5μm column and detected at 300nm by using methanol:water(98:2)as mobile phase when the column temperature was 30℃.Result:The linear ranges of determination ofα-tocopherol was 0.1~50.0mg/L(r=0.9985).Theα-tocopherol in goose is 0.264μg/mL Conclusion:The method is sensitive,simply and accurate.It can be used to determine the concentration ofα-tocopherol in animal food.