摘要
采用高频燃烧红外吸收法测定了碳酸钡中硫含量,在测定过程中选用复合型助熔剂,并对样品作测定前预处理,有效解决了高频感应炉中因顶吹氧气流的作用而导致样品喷溅问题。该法可准确测定碳酸钡中质量分数为0 001%～5%硫,回收率为92 6%～104 6%,RSD为0 81%～2 23%。
Sulfur in barium carbonate samples was determined by high frequency-infrared absorption method. Samples were pretreated mechanically and melted in complex flux medium. Thus, sputtering caused by the oxygen stream blasting from the top was avoided. The determination range for sulfur in barium carbonate samples was 0.001% - 5% (mass fraction). Recovery was in the range of 92.6% - 104.6%, RSD ranges from 0.81% to 2.23%.
出处
《冶金分析》
EI
CAS
CSCD
北大核心
2005年第2期62-64,共3页
Metallurgical Analysis
