聚酯类油漆树脂中微量二苯甲酮类光吸收剂的含量测定  

Study on Direct Determination of Trace Amounts of Benzophenone in Polyester Paint by Ultraviolet Spectrum

作　　者：魏献军[1] 李红星[2] 孙瑞霞[1] 程定玺[1] 

机构地区：[1]河南师范大学化学与环境科学学院,河南新乡453002 [2]河南师范大学学报编辑部,河南新乡453002

出　　处：《河南大学学报（自然科学版）》2005年第1期39-41,共3页Journal of Henan University:Natural Science

基　　金：河南省科技攻关项目(981090132)

摘　　要：用紫外光谱法对油漆树脂中二苯甲酮类紫外光吸收剂直接进行测定,该化合物摩尔吸光系数为 8. 9×103. 合成样品分析结果为:相对误差≤±2. 78%,相对标准误差: ±0. 20% ~±6. 00%;加标回收试验表明其回收率为 98. 7% ~102. 2%.In this paper, the method of direct determination of benzophenone (suchas UV-9) in polyester paint by ultraviolet spectrum is proposed. Absorptivity ofUV-9 is 8.9×10~3 L·mol^(-1)·cm^(-1). The results of synthetic samples were determined by this method: the relative standard deviation and the relative error of UV-9 were respectively less than (2.78%) and 6.00%;the recovery of UV-9 was 98.7%4102.2% in the real samples.

关 键 词：紫外光谱 聚酯树脂 二苯甲酮 

分 类 号：O657.32[理学—分析化学]