摘要
利用酸溶法分解可膨胀石墨样品 ,硫酸钡重量法测定其中的杂质硫。分析结果表明该方法RSD =1 6% ,标准加入回收率在 97 8%～ 99 6%。
A gravimetric method for the determination of sulfur cont ent in expandable graphite samples was described Sample was dissolved completely in a mixed acid solutio n,and then the resulting solution was precipitated to produce a bari um sulfate precipitant by adding B aCl 2 solution RSD(n=6)for the proc edure was 1 6% and recoveries were 97 8%～99 6%
出处
《冶金分析》
CAS
CSCD
北大核心
2001年第4期55-56,共2页
Metallurgical Analysis
