【作者】 袁晓玉； 季金苟； 吕廷婷；

【Author】 YUAN Xiao-yu,JI Jin-gou~* and L(U|¨) Ting-ting(College of Chemistry and Chemical Engineering,Chongqing University, Chongqing 400044)

【机构】 重庆大学化学化工学院；

【摘要】 用紫外分光光度法对TiO₂混悬液中有机染料罗丹明B检测时,采用TiO₂背景扣除法和碱化沉淀扣除法两种方法,与标准法相比,TiO₂背景扣除法在P=0.95时,其精密度和准确度都存在显著性差异;而碱化沉淀扣除法在相同P值下,精密度和准确度良好,不存在显著性差异。因此碱化沉淀扣除法是一种准确、快速、简便的测定纳米TiO₂混悬液中罗丹明B含量的方法。更多还原

【Abstract】 Organic dye rhodamine B in nano-TiO₂ suspension was determined by UV spectrophometer with two different treatment methods:①using a nano-TiO₂ suspension pretreated by high speed centrifugation as a reference solution;②adding NaOH solution into nano-TiO₂ suspension to deposit the nano-TiO₂.The results showed that there were sig- nificant difference between the former and the standard method（P=0.95） and there were no significant difference between the latter and the standard method（P=0.95） The method of alkaline treatment is accurate,rapid and simple for determination of rhodamine B in nano-TiO₂ suspension.更多还原