酸溶-二安替比林甲烷分光光度法测定地质样品中二氧化钛  

Determination of titanium dioxide in geological samples by acid dissolution-diantipyrine methane spectrophotometry

作　　者：罗彦佳 Luo Yanjia(Shaanxi Geological and Mineral third team Ltd.,Baoji 721300)

机构地区：[1]陕西地矿第三地质队有限公司,陕西宝鸡721300

出　　处：《陕西地质》2024年第1期96-99,共4页Geology of Shaanxi

摘　　要：在方法GB/T14506.8-2010的基础上进行优化,采用氢氟酸-高氯酸-硫酸溶解样品,在盐酸介质中,用抗坏血酸还原铁消除干扰,以二安替比林甲烷作显色剂,试剂空白作参比,在390nm或450nm处测定二氧化钛;此方法操作简便、快速、适用范围广,能够适用于含量范围较宽的多种地质样品中二氧化钛的测定,明显提高了工作效率。Based on the method outlined in GB/T14506.8-2010,this approach employs hydrofluoric acid,perchloric acid,and sulfuric acid to dissolve the sample in a hydrochloric acid medium with ascorbic acid to eliminate the interference caused by reducing iron.Diamantipyrine methane served as the colorant,and the reagent blank was used as a reference.The determination of titanium dioxide at 390 nm or 450 nm is both easy to operate and fast,and its wide range of applicability makes it suitable for a broad range of methods.Furthermore,this method can be applied to the determination of titanium dioxide in a diverse array of geological samples,significantly enhancing work efficiency.This technique is characterized by its simplicity,speed,broad applicability,and ability to analyze a wide range of contents in various geological samples,which greatly improves work efficiency.

关 键 词：酸溶 二安替比林甲烷 二氧化钛抗坏血酸 分光光度法 

分 类 号：F407.1[经济管理—产业经济]