摘要
研究了硒中硫的分离方法,利用阴离子交换树脂分离SeO32-和SO42-,研究了分离条件,采用二苯卡巴肼分光光度法测定SO42-。加标回收率97%-104%。方法用于粗硒,亚硒酸钠中硫的分离测定,结果满意。
In this paper a method for the separation and determination of tracing sulfur in the matrix of selenium has been studied. The SO4^2- was separated from SeO3^2- by using ion exchange resin, and the conditions of separation have been studied. The SO4^2- was determined spectrophotometrically by using diphenyl carbazide. The recovery is 97%- 104%. The method is applied to separate and determine the microamounts of sulfur in crude selenium and sodium selenite. Satisfactory results are obtained.
出处
《渤海大学学报（自然科学版）》
CAS
2006年第2期97-100,共4页
Journal of Bohai University:Natural Science Edition
基金
国家自然科学基金资助项目(No.20271424)
辽宁省教育厅基金资助项目(No.990121408)
辽宁省科学技术计划项目--省院校合作工程资金专项计划项目(No.200502003)
关键词
离子交换树脂
分光光度法
硒
硫
ion exchange resin ~ spectrophotometry
selenium
sulfur
