利用醋酸泼尼松对Ｃｅ（Ⅳ）—Ｎａ２ＳＯ３化学发光体系的增强作用，建立了流动注射化学发光法测定醋酸泼尼松的新方法。化学发光强度与醋酸泼尼松的浓度在０２～２００ｍｇ／Ｌ范围内呈线性关系，检出限００３１ｍｇ／Ｌ，对０２ｍｇ／Ｌ醋酸泼尼松标准溶液的１１次平行测定的相对标准偏差为１８％。本法用于药品中醋酸泼尼松的测定，结果令人满意。 A new method for the determination of prednisone acetate by flow injection chemiluminescence was established using the enhancement of prednisone acetate on Ce (Ⅳ) -Na2SO3 chemiluminescence system. The chemiluminescence intensity was linear with the concentration of prednisone acetate in the range of 02 ~ 200 mg / L with the detection limit of 0031 mg / L. The chemiluminescence intensity of prednisone acetate solution was 11 times for 02 mg / L prednisone acetate standard solution The relative standard deviation of parallel determination was 18%. This method is used in the determination of prednisone acetate in pharmaceuticals and the results are satisfactory.