醋酸尿素聚丙烯酰胺凝胶电泳法测玉米种子纯度是利用玉米种子品种间蛋白质组成的差异，将其分离，通过染色显示出不同的蛋白质谱带，可鉴别出玉米品种的真实性和纯度。此方法优点是蛋白质分辨率高，谱带清晰，配药方便。１　测定仪器、试剂和试验材料ａ仪器　电泳仪、离心机 Acetate urea polyacrylamide gel electrophoresis method to determine the purity of maize seeds is the use of maize varieties of different protein composition differences, the separation, through the staining showed different protein bands, maize varieties can be identified authenticity and purity. This method has the advantages of high protein resolution, clear band, and convenient dispensing. 1 measuring instruments, reagents and test materials a  instrument electrophoresis centrifuge