Study on the Spectrophotometric Determination of Barium with a New Chromogenic Reagent Dibromo-p-methyl-bromosulfonazo and Its Analytical Application
Author(s): FANG Guozhen, MENG Shuangming, ZHANG Guizhi, PAN Jiaomai
Pages: 307-309
Year: 2001 Issue: 4
Journal: JOURNAL OF ANALYTICAL SCIENCE
Keyword: 二溴对甲基偶氮溴磺; 钡; 钛酸钡; 光度测定;
Abstract: 研究新显色剂二溴对甲基偶氮溴磺光度测定微量钡的方法.在0.72 mol@L-1HCl介质中,试剂与钡形成2:1蓝色络合物,其最大吸收波长位于628 nm,表观摩尔吸光系数为9.9×104L@mo1-1@cm-1,钡量在0～25μg/25 mL范围内符合比耳定律.方法用于钛酸钡烧结物中微量钡的测定,结果满意.
Pages: 307-309
Year: 2001 Issue: 4
Journal: JOURNAL OF ANALYTICAL SCIENCE
Keyword: 二溴对甲基偶氮溴磺; 钡; 钛酸钡; 光度测定;
Abstract: 研究新显色剂二溴对甲基偶氮溴磺光度测定微量钡的方法.在0.72 mol@L-1HCl介质中,试剂与钡形成2:1蓝色络合物,其最大吸收波长位于628 nm,表观摩尔吸光系数为9.9×104L@mo1-1@cm-1,钡量在0～25μg/25 mL范围内符合比耳定律.方法用于钛酸钡烧结物中微量钡的测定,结果满意.
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